diff --git a/data/objectives/weekly.json b/data/objectives/weekly.json
new file mode 100644
index 0000000..589669d
--- /dev/null
+++ b/data/objectives/weekly.json
@@ -0,0 +1,46 @@
+[
+  {
+    "id": "weekly_win_3",
+    "title": "Weekly Warrior",
+    "description": "Win 3 matches this week.",
+    "objective_type": "weekly",
+    "metric": "matcheswon",
+    "target": 3,
+    "reward_coins": 2000,
+    "reward_pack_id": "silver_pack",
+    "reward_xp": 500
+  },
+  {
+    "id": "weekly_goals_10",
+    "title": "Goal Machine",
+    "description": "Score 10 goals this week.",
+    "objective_type": "weekly",
+    "metric": "goalsscored",
+    "target": 10,
+    "reward_coins": 1500,
+    "reward_pack_id": null,
+    "reward_xp": 400
+  },
+  {
+    "id": "weekly_play_5",
+    "title": "Dedicated Player",
+    "description": "Play 5 matches this week.",
+    "objective_type": "weekly",
+    "metric": "matchesplayed",
+    "target": 5,
+    "reward_coins": 1000,
+    "reward_pack_id": null,
+    "reward_xp": 300
+  },
+  {
+    "id": "weekly_sbc_2",
+    "title": "SBC Specialist",
+    "description": "Complete 2 SBCs this week.",
+    "objective_type": "weekly",
+    "metric": "sbcscompleted",
+    "target": 2,
+    "reward_coins": 2500,
+    "reward_pack_id": "gold_pack",
+    "reward_xp": 600
+  }
+]
diff --git a/migrations/0002_win_streaks.sql b/migrations/0002_win_streaks.sql
new file mode 100644
index 0000000..cd06fc5
--- /dev/null
+++ b/migrations/0002_win_streaks.sql
@@ -0,0 +1,3 @@
+-- Add win streak tracking to statistics
+ALTER TABLE statistics ADD COLUMN win_streak INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE statistics ADD COLUMN best_win_streak INTEGER NOT NULL DEFAULT 0;
diff --git a/src/app.rs b/src/app.rs
index ba76c19..90bc321 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,11 +1,13 @@
 use crate::{
     config::Config,
     db::Pool,
-    models::{objective::ObjectiveDefinition, pack::PackDefinition, sbc::SbcDefinition},
+    models::objective::{ObjectiveDefinition, ObjectiveType},
+    models::pack::PackDefinition,
+    models::sbc::SbcDefinition,
     routes,
     services::{
-        card_db::CardDb, objective::load_objective_definitions, pack::load_pack_definitions,
-        sbc::load_sbc_definitions,
+        card_db::CardDb, market, objective::load_objective_definitions,
+        pack::load_pack_definitions, sbc::load_sbc_definitions,
     },
 };
 use anyhow::Result;
@@ -32,20 +34,73 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
     let sbc_defs = Arc::new(load_sbc_definitions(&cfg.data_dir)?);
 
     tracing::info!(
-        "Loaded {} packs, {} objectives, {} SBCs",
+        "Loaded {} cards, {} packs, {} objectives, {} SBCs",
+        card_db.cards.len(),
         pack_defs.len(),
         obj_defs.len(),
-        sbc_defs.len()
+        sbc_defs.len(),
     );
 
     let state = AppState {
-        pool,
-        card_db,
+        pool: pool.clone(),
+        card_db: card_db.clone(),
         pack_defs,
-        obj_defs,
+        obj_defs: obj_defs.clone(),
         sbc_defs,
     };
 
+    // Background task: refresh NPC market at startup and every 24 hours
+    {
+        let pool = pool.clone();
+        let card_db = card_db.clone();
+        tokio::spawn(async move {
+            if let Err(e) = market::refresh_npc_listings(&pool, &card_db).await {
+                tracing::warn!("initial market refresh failed: {e}");
+            }
+            loop {
+                tokio::time::sleep(tokio::time::Duration::from_secs(86_400)).await;
+                if let Err(e) = market::refresh_npc_listings(&pool, &card_db).await {
+                    tracing::warn!("market refresh failed: {e}");
+                }
+            }
+        });
+    }
+
+    // Background task: reset daily objective progress at midnight UTC
+    {
+        let pool = pool.clone();
+        let daily_ids: Vec<String> = obj_defs
+            .iter()
+            .filter(|d| matches!(d.objective_type, ObjectiveType::Daily))
+            .map(|d| d.id.clone())
+            .collect();
+        tokio::spawn(async move {
+            loop {
+                let now = chrono::Utc::now();
+                let tomorrow = now.date_naive() + chrono::Days::new(1);
+                let midnight = tomorrow
+                    .and_hms_opt(0, 0, 0)
+                    .map(|dt| dt.and_utc())
+                    .unwrap_or_else(|| now + chrono::Duration::hours(24));
+                let secs = (midnight - now).num_seconds().max(1) as u64;
+                tokio::time::sleep(tokio::time::Duration::from_secs(secs)).await;
+
+                for id in &daily_ids {
+                    if let Err(e) = sqlx::query(
+                        "UPDATE objective_progress SET current = 0, completed = 0, claimed = 0 WHERE objective_id = ?",
+                    )
+                    .bind(id)
+                    .execute(&pool)
+                    .await
+                    {
+                        tracing::warn!("daily reset failed for {id}: {e}");
+                    }
+                }
+                tracing::info!("Daily objectives reset ({} objectives)", daily_ids.len());
+            }
+        });
+    }
+
     let router = Router::new()
         .route("/health", get(routes::health::get_health))
         .route("/auth/local", post(routes::auth::post_auth_local))
@@ -65,6 +120,7 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
             post(routes::objectives::post_claim_objective),
         )
         .route("/matches", get(routes::matches::get_matches))
+        .route("/matches/opponent", get(routes::matches::get_opponent))
         .route("/matches/result", post(routes::matches::post_match_result))
         .route("/sbc", get(routes::sbc::get_sbcs))
         .route("/sbc/:sbc_id", get(routes::sbc::get_sbc))
@@ -74,6 +130,10 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
         .route("/market/sell", post(routes::market::post_market_sell))
         .route("/market/refresh", post(routes::market::post_market_refresh))
         .route("/statistics", get(routes::statistics::get_statistics))
+        .route(
+            "/statistics/history",
+            get(routes::statistics::get_statistics_history),
+        )
         .layer(TraceLayer::new_for_http())
         .layer(CorsLayer::permissive())
         .with_state(state);
diff --git a/src/models/statistics.rs b/src/models/statistics.rs
index 858c019..71e52c6 100644
--- a/src/models/statistics.rs
+++ b/src/models/statistics.rs
@@ -12,6 +12,8 @@ pub struct Statistics {
     pub packs_opened: i64,
     pub sbcs_completed: i64,
     pub total_coins_earned: i64,
+    pub win_streak: i64,
+    pub best_win_streak: i64,
     pub updated_at: String,
 }
 
@@ -28,6 +30,8 @@ impl Statistics {
             packs_opened: 0,
             sbcs_completed: 0,
             total_coins_earned: 0,
+            win_streak: 0,
+            best_win_streak: 0,
             updated_at: chrono::Utc::now().to_rfc3339(),
         }
     }
diff --git a/src/routes/market.rs b/src/routes/market.rs
index e86f69d..4e9e553 100644
--- a/src/routes/market.rs
+++ b/src/routes/market.rs
@@ -1,4 +1,8 @@
-use axum::{extract::State, Json};
+use axum::{
+    extract::{Query, State},
+    Json,
+};
+use serde::Deserialize;
 use serde_json::{json, Value};
 
 use crate::{
@@ -8,8 +12,31 @@ use crate::{
     services::{club as club_svc, market as market_svc, profile as profile_svc},
 };
 
-pub async fn get_market(State(state): State<AppState>) -> AppResult<Json<Value>> {
-    let listings = market_svc::get_active_listings(&state.pool, &state.card_db).await?;
+#[derive(Deserialize)]
+pub struct MarketQuery {
+    pub min_overall: Option<u8>,
+    pub position: Option<String>,
+}
+
+pub async fn get_market(
+    State(state): State<AppState>,
+    Query(query): Query<MarketQuery>,
+) -> AppResult<Json<Value>> {
+    let all = market_svc::get_active_listings(&state.pool, &state.card_db).await?;
+    let listings: Vec<_> = all
+        .into_iter()
+        .filter(|l| {
+            query
+                .min_overall
+                .map(|min| l.card.overall >= min)
+                .unwrap_or(true)
+                && query
+                    .position
+                    .as_ref()
+                    .map(|p| l.card.position.eq_ignore_ascii_case(p))
+                    .unwrap_or(true)
+        })
+        .collect();
     Ok(Json(
         json!({ "listings": listings, "total": listings.len() }),
     ))
diff --git a/src/routes/matches.rs b/src/routes/matches.rs
index 0eea2f3..0a592ca 100644
--- a/src/routes/matches.rs
+++ b/src/routes/matches.rs
@@ -47,6 +47,20 @@ pub async fn get_matches(
     Ok(Json(json!({ "matches": matches, "total": matches.len() })))
 }
 
+#[derive(Deserialize)]
+pub struct OpponentQuery {
+    pub difficulty: Option<String>,
+}
+
+pub async fn get_opponent(
+    State(state): State<AppState>,
+    Query(query): Query<OpponentQuery>,
+) -> AppResult<Json<Value>> {
+    let difficulty = query.difficulty.as_deref().unwrap_or("beginner");
+    let opponent = match_service::generate_opponent(&state.card_db, difficulty);
+    Ok(Json(opponent))
+}
+
 pub async fn post_match_result(
     State(state): State<AppState>,
     Json(req): Json<SubmitMatchRequest>,
diff --git a/src/routes/squad.rs b/src/routes/squad.rs
index d0ee15a..b3a414b 100644
--- a/src/routes/squad.rs
+++ b/src/routes/squad.rs
@@ -13,6 +13,7 @@ pub async fn get_squad(State(state): State<AppState>) -> AppResult<Json<Value>>
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
     let (squad, players) = squad_svc::get_squad(&state.pool, &club.id).await?;
+    let chemistry = squad_svc::calculate_chemistry(&state.pool, &state.card_db, &players).await?;
 
     let enriched: Vec<Value> = players
         .iter()
@@ -34,6 +35,7 @@ pub async fn get_squad(State(state): State<AppState>) -> AppResult<Json<Value>>
             "formation": squad.formation,
         },
         "players": enriched,
+        "chemistry": chemistry,
     })))
 }
 
@@ -44,6 +46,10 @@ pub async fn post_squad(
     let profile = profile_svc::get_active_profile(&state.pool).await?;
     let club = club_svc::get_club_by_profile(&state.pool, &profile.id).await?;
 
+    if !req.players.is_empty() {
+        squad_svc::validate_formation(&state.pool, &state.card_db, &req.players).await?;
+    }
+
     let squad = squad_svc::save_squad(&state.pool, &club.id, &req).await?;
     Ok(Json(json!({ "squad": squad })))
 }
diff --git a/src/routes/statistics.rs b/src/routes/statistics.rs
index 6e9c019..6212aa2 100644
--- a/src/routes/statistics.rs
+++ b/src/routes/statistics.rs
@@ -1,9 +1,14 @@
-use axum::{extract::State, Json};
+use axum::{
+    extract::{Query, State},
+    Json,
+};
+use serde::Deserialize;
+use serde_json::{json, Value};
 
 use crate::{
     app::AppState,
     error::AppResult,
-    models::statistics::Statistics,
+    models::{match_result::Match, statistics::Statistics},
     services::{profile as profile_svc, statistics as stats_svc},
 };
 
@@ -12,3 +17,55 @@ pub async fn get_statistics(State(state): State<AppState>) -> AppResult<Json<Sta
     let stats = stats_svc::get_or_create(&state.pool, &profile.id).await?;
     Ok(Json(stats))
 }
+
+#[derive(Deserialize)]
+pub struct HistoryQuery {
+    pub limit: Option<i64>,
+}
+
+pub async fn get_statistics_history(
+    State(state): State<AppState>,
+    Query(query): Query<HistoryQuery>,
+) -> AppResult<Json<Value>> {
+    let profile = profile_svc::get_active_profile(&state.pool).await?;
+    let limit = query.limit.unwrap_or(20).clamp(1, 100);
+
+    let matches = sqlx::query_as::<_, Match>(
+        "SELECT id, profile_id, squad_id, opponent_name, goals_for, goals_against, outcome, coins_awarded, xp_awarded, mode, played_at FROM matches WHERE profile_id = ? ORDER BY played_at DESC LIMIT ?",
+    )
+    .bind(&profile.id)
+    .bind(limit)
+    .fetch_all(&state.pool)
+    .await?;
+
+    let total = matches.len();
+    let wins = matches.iter().filter(|m| m.outcome == "win").count();
+    let draws = matches.iter().filter(|m| m.outcome == "draw").count();
+    let losses = matches.iter().filter(|m| m.outcome == "loss").count();
+    let goals_for: i64 = matches.iter().map(|m| m.goals_for).sum();
+    let goals_against: i64 = matches.iter().map(|m| m.goals_against).sum();
+    let win_rate = if total > 0 {
+        wins as f64 / total as f64
+    } else {
+        0.0
+    };
+    let avg_goals = if total > 0 {
+        goals_for as f64 / total as f64
+    } else {
+        0.0
+    };
+
+    Ok(Json(json!({
+        "matches": matches,
+        "summary": {
+            "total": total,
+            "wins": wins,
+            "draws": draws,
+            "losses": losses,
+            "win_rate": (win_rate * 100.0).round() / 100.0,
+            "total_goals_for": goals_for,
+            "total_goals_against": goals_against,
+            "avg_goals_per_game": (avg_goals * 100.0).round() / 100.0,
+        }
+    })))
+}
diff --git a/src/services/market.rs b/src/services/market.rs
index 44235d8..3c57a8b 100644
--- a/src/services/market.rs
+++ b/src/services/market.rs
@@ -35,6 +35,10 @@ pub async fn get_active_listings(
 
 /// Refresh NPC market with random listings from the card pool.
 pub async fn refresh_npc_listings(pool: &Pool, card_db: &CardDb) -> AppResult<usize> {
+    // Clean up expired listings first
+    sqlx::query("DELETE FROM market_listings WHERE expires_at < datetime('now')")
+        .execute(pool)
+        .await?;
     sqlx::query("DELETE FROM market_listings WHERE sold = 0")
         .execute(pool)
         .await?;
diff --git a/src/services/match_service.rs b/src/services/match_service.rs
index ee895db..0c0ea72 100644
--- a/src/services/match_service.rs
+++ b/src/services/match_service.rs
@@ -5,8 +5,80 @@ use crate::{
         match_result::{Match, MatchRewardResult, SubmitMatchRequest},
         objective::ObjectiveDefinition,
     },
-    services::{club, objective, profile, statistics},
+    services::{card_db::CardDb, club, objective, profile, statistics},
 };
+use rand::{seq::SliceRandom, Rng};
+
+/// Generate a random AI opponent squad for Squad Battles.
+pub fn generate_opponent(card_db: &CardDb, difficulty: &str) -> serde_json::Value {
+    let (min_overall, names): (u8, &[&str]) = match difficulty {
+        "professional" => (
+            70,
+            &[
+                "Athletic CF",
+                "City Wanderers",
+                "The Rovers",
+                "United Select",
+                "Blue Stars FC",
+            ],
+        ),
+        "world_class" => (
+            78,
+            &[
+                "Elite Stars FC",
+                "Champions Select",
+                "Premier XI",
+                "Galaxy United",
+                "Titan FC",
+            ],
+        ),
+        "legendary" => (
+            85,
+            &[
+                "Legends United",
+                "Ultimate XI",
+                "Gold Standard FC",
+                "The Icons",
+                "Heritage FC",
+            ],
+        ),
+        _ => (
+            58,
+            &[
+                "Amateur Town FC",
+                "Sunday League XI",
+                "Park FC",
+                "Village Stars",
+                "Reserve XI",
+            ],
+        ),
+    };
+
+    let mut rng = rand::thread_rng();
+    let all = card_db.by_min_overall(min_overall);
+    let mut indices: Vec<usize> = (0..all.len()).collect();
+    indices.shuffle(&mut rng);
+    let cards: Vec<_> = indices
+        .into_iter()
+        .take(11)
+        .map(|i| all[i].clone())
+        .collect();
+
+    let squad_rating = if cards.is_empty() {
+        0
+    } else {
+        cards.iter().map(|c| c.overall as i64).sum::<i64>() / cards.len() as i64
+    };
+    let name = names[rng.gen_range(0..names.len())];
+
+    serde_json::json!({
+        "opponent_name": name,
+        "difficulty": difficulty,
+        "squad_rating": squad_rating,
+        "formation": "4-4-2",
+        "cards": cards,
+    })
+}
 
 const COINS_WIN: i64 = 400;
 const COINS_DRAW: i64 = 150;
diff --git a/src/services/sbc.rs b/src/services/sbc.rs
index fdc3eb6..4c260d8 100644
--- a/src/services/sbc.rs
+++ b/src/services/sbc.rs
@@ -130,14 +130,23 @@ fn validate_sbc(def: &SbcDefinition, cards: &[CardDefinition]) -> (bool, Vec<Str
     if let Some(min) = req.min_overall {
         let avg = cards.iter().map(|c| c.overall as i64).sum::<i64>() / cards.len() as i64;
         if avg < min as i64 {
-            failures.push(format!("average overall {avg} < required {min}"));
+            failures.push(format!("average overall {avg} < required minimum {min}"));
+        }
+    }
+
+    if let Some(max) = req.max_overall {
+        if let Some(card) = cards.iter().find(|c| c.overall > max) {
+            failures.push(format!(
+                "'{}' has overall {} which exceeds maximum {max}",
+                card.name, card.overall
+            ));
         }
     }
 
     if !req.required_leagues.is_empty() {
         for league in &req.required_leagues {
             if !cards.iter().any(|c| &c.league == league) {
-                failures.push(format!("need at least one player from league {league}"));
+                failures.push(format!("need at least one player from league '{league}'"));
             }
         }
     }
@@ -145,22 +154,57 @@ fn validate_sbc(def: &SbcDefinition, cards: &[CardDefinition]) -> (bool, Vec<Str
     if !req.required_nations.is_empty() {
         for nation in &req.required_nations {
             if !cards.iter().any(|c| &c.nation == nation) {
-                failures.push(format!("need at least one player from nation {nation}"));
+                failures.push(format!("need at least one player from nation '{nation}'"));
+            }
+        }
+    }
+
+    if !req.required_clubs.is_empty() {
+        for club in &req.required_clubs {
+            if !cards.iter().any(|c| &c.club == club) {
+                failures.push(format!("need at least one player from club '{club}'"));
             }
         }
     }
 
     if let Some(min_same_league) = req.min_players_from_same_league {
-        let league_counts: std::collections::HashMap<&str, usize> =
-            cards.iter().fold(Default::default(), |mut m, c| {
-                *m.entry(c.league.as_str()).or_default() += 1;
-                m
-            });
-        let max = league_counts.values().copied().max().unwrap_or(0);
-        if max < min_same_league as usize {
-            failures.push(format!("need {min_same_league} players from same league"));
+        let counts = count_by(cards, |c| c.league.as_str());
+        if counts.values().copied().max().unwrap_or(0) < min_same_league as usize {
+            failures.push(format!(
+                "need at least {min_same_league} players from the same league"
+            ));
+        }
+    }
+
+    if let Some(min_same_nation) = req.min_players_from_same_nation {
+        let counts = count_by(cards, |c| c.nation.as_str());
+        if counts.values().copied().max().unwrap_or(0) < min_same_nation as usize {
+            failures.push(format!(
+                "need at least {min_same_nation} players from the same nation"
+            ));
+        }
+    }
+
+    if let Some(min_same_club) = req.min_players_from_same_club {
+        let counts = count_by(cards, |c| c.club.as_str());
+        if counts.values().copied().max().unwrap_or(0) < min_same_club as usize {
+            failures.push(format!(
+                "need at least {min_same_club} players from the same club"
+            ));
         }
     }
 
     (failures.is_empty(), failures)
 }
+
+fn count_by<'a, F>(cards: &'a [CardDefinition], key: F) -> std::collections::HashMap<&'a str, usize>
+where
+    F: Fn(&'a CardDefinition) -> &'a str,
+{
+    cards
+        .iter()
+        .fold(std::collections::HashMap::new(), |mut m, c| {
+            *m.entry(key(c)).or_default() += 1;
+            m
+        })
+}
diff --git a/src/services/squad.rs b/src/services/squad.rs
index 61d02ad..f7cf1d5 100644
--- a/src/services/squad.rs
+++ b/src/services/squad.rs
@@ -1,7 +1,11 @@
 use crate::{
     db::Pool,
     error::{AppError, AppResult},
-    models::squad::{SaveSquadRequest, Squad, SquadPlayer},
+    models::{
+        card::{CardDefinition, OwnedCard},
+        squad::{SaveSquadRequest, Squad, SquadPlayer, SquadPlayerInput},
+    },
+    services::card_db::CardDb,
 };
 use uuid::Uuid;
 
@@ -24,6 +28,112 @@ pub async fn get_squad(pool: &Pool, club_id: &str) -> AppResult<(Squad, Vec<Squa
     Ok((squad, players))
 }
 
+/// Validate that the squad has exactly 11 starters with exactly one GK.
+pub async fn validate_formation(
+    pool: &Pool,
+    card_db: &CardDb,
+    players: &[SquadPlayerInput],
+) -> AppResult<()> {
+    let starters: Vec<&SquadPlayerInput> = players.iter().filter(|p| !p.is_on_bench).collect();
+
+    if starters.len() != 11 {
+        return Err(AppError::BadRequest(format!(
+            "need exactly 11 starters, got {}",
+            starters.len()
+        )));
+    }
+
+    let mut gk_count = 0usize;
+    for sp in &starters {
+        let owned = sqlx::query_as::<_, OwnedCard>(
+            "SELECT id, club_id, card_id, is_loan, loan_matches_remaining, acquired_at FROM owned_cards WHERE id = ?",
+        )
+        .bind(&sp.owned_card_id)
+        .fetch_optional(pool)
+        .await?
+        .ok_or_else(|| AppError::NotFound(format!("owned card {} not found", sp.owned_card_id)))?;
+
+        if let Some(card) = card_db.get(&owned.card_id) {
+            if card.position == "GK" {
+                gk_count += 1;
+            }
+        }
+    }
+
+    if gk_count == 0 {
+        return Err(AppError::BadRequest(
+            "squad must include exactly one goalkeeper (GK)".into(),
+        ));
+    }
+    if gk_count > 1 {
+        return Err(AppError::BadRequest(
+            "squad cannot have more than one starting goalkeeper".into(),
+        ));
+    }
+
+    Ok(())
+}
+
+/// Calculate chemistry for the starting XI. Returns total and per-player scores.
+pub async fn calculate_chemistry(
+    pool: &Pool,
+    card_db: &CardDb,
+    players: &[SquadPlayer],
+) -> AppResult<serde_json::Value> {
+    let starters: Vec<&SquadPlayer> = players.iter().filter(|p| !p.is_on_bench).collect();
+
+    let mut cards: Vec<CardDefinition> = Vec::new();
+    for sp in &starters {
+        let owned = sqlx::query_as::<_, OwnedCard>(
+            "SELECT id, club_id, card_id, is_loan, loan_matches_remaining, acquired_at FROM owned_cards WHERE id = ?",
+        )
+        .bind(&sp.owned_card_id)
+        .fetch_optional(pool)
+        .await?;
+
+        if let Some(o) = owned {
+            if let Some(card) = card_db.get(&o.card_id) {
+                cards.push(card.clone());
+            }
+        }
+    }
+
+    // Per-player chemistry: club links (max 4) + league links (max 3) + nation links (max 3), capped at 10
+    let player_chems: Vec<i64> = cards
+        .iter()
+        .enumerate()
+        .map(|(i, c)| {
+            let same_club = cards
+                .iter()
+                .enumerate()
+                .filter(|(j, o)| *j != i && o.club == c.club)
+                .count()
+                .min(4) as i64;
+            let same_league = cards
+                .iter()
+                .enumerate()
+                .filter(|(j, o)| *j != i && o.league == c.league)
+                .count()
+                .min(3) as i64;
+            let same_nation = cards
+                .iter()
+                .enumerate()
+                .filter(|(j, o)| *j != i && o.nation == c.nation)
+                .count()
+                .min(3) as i64;
+            (same_club + same_league + same_nation).min(10)
+        })
+        .collect();
+
+    let total: i64 = player_chems.iter().sum::<i64>().min(100);
+
+    Ok(serde_json::json!({
+        "total": total,
+        "max": 100,
+        "player_chemistries": player_chems,
+    }))
+}
+
 pub async fn save_squad(pool: &Pool, club_id: &str, req: &SaveSquadRequest) -> AppResult<Squad> {
     let now = chrono::Utc::now().to_rfc3339();
 
@@ -54,7 +164,7 @@ pub async fn save_squad(pool: &Pool, club_id: &str, req: &SaveSquadRequest) -> A
             req.formation.as_deref().unwrap_or("4-4-2"),
         );
         sqlx::query(
-            "INSERT INTO squads (id, club_id, name, formation, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?)"
+            "INSERT INTO squads (id, club_id, name, formation, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?)",
         )
         .bind(&squad.id)
         .bind(&squad.club_id)
@@ -70,7 +180,7 @@ pub async fn save_squad(pool: &Pool, club_id: &str, req: &SaveSquadRequest) -> A
     for player in &req.players {
         let sp_id = Uuid::new_v4().to_string();
         sqlx::query(
-            "INSERT INTO squad_players (id, squad_id, owned_card_id, position_index, is_captain, is_on_bench) VALUES (?, ?, ?, ?, ?, ?)"
+            "INSERT INTO squad_players (id, squad_id, owned_card_id, position_index, is_captain, is_on_bench) VALUES (?, ?, ?, ?, ?, ?)",
         )
         .bind(&sp_id)
         .bind(&squad_id)
diff --git a/src/services/statistics.rs b/src/services/statistics.rs
index 84633e3..64c8741 100644
--- a/src/services/statistics.rs
+++ b/src/services/statistics.rs
@@ -1,20 +1,19 @@
 use crate::{db::Pool, error::AppResult, models::statistics::Statistics};
 
-pub async fn get_or_create(pool: &Pool, profile_id: &str) -> AppResult<Statistics> {
-    let existing = sqlx::query_as::<_, Statistics>(
-        "SELECT profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, updated_at FROM statistics WHERE profile_id = ?"
-    )
-    .bind(profile_id)
-    .fetch_optional(pool)
-    .await?;
+const SELECT_STATS: &str = "SELECT profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, win_streak, best_win_streak, updated_at FROM statistics WHERE profile_id = ?";
 
-    if let Some(s) = existing {
+pub async fn get_or_create(pool: &Pool, profile_id: &str) -> AppResult<Statistics> {
+    if let Some(s) = sqlx::query_as::<_, Statistics>(SELECT_STATS)
+        .bind(profile_id)
+        .fetch_optional(pool)
+        .await?
+    {
         return Ok(s);
     }
 
     let stats = Statistics::new(profile_id);
     sqlx::query(
-        "INSERT INTO statistics (profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, updated_at) VALUES (?, 0, 0, 0, 0, 0, 0, 0, 0, 0, ?)"
+        "INSERT INTO statistics (profile_id, matches_played, matches_won, matches_drawn, matches_lost, goals_scored, goals_conceded, packs_opened, sbcs_completed, total_coins_earned, win_streak, best_win_streak, updated_at) VALUES (?, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ?)",
     )
     .bind(profile_id)
     .bind(&stats.updated_at)
@@ -32,7 +31,7 @@ pub async fn record_match(
     goals_against: i64,
     coins: i64,
 ) -> AppResult<()> {
-    get_or_create(pool, profile_id).await?;
+    let current = get_or_create(pool, profile_id).await?;
     let now = chrono::Utc::now().to_rfc3339();
 
     let (w, d, l) = match outcome {
@@ -41,16 +40,25 @@ pub async fn record_match(
         _ => (0, 0, 1),
     };
 
+    let new_streak = if outcome == "win" {
+        current.win_streak + 1
+    } else {
+        0
+    };
+    let new_best = new_streak.max(current.best_win_streak);
+
     sqlx::query(
         "UPDATE statistics SET
-            matches_played = matches_played + 1,
-            matches_won = matches_won + ?,
-            matches_drawn = matches_drawn + ?,
-            matches_lost = matches_lost + ?,
-            goals_scored = goals_scored + ?,
-            goals_conceded = goals_conceded + ?,
+            matches_played    = matches_played + 1,
+            matches_won       = matches_won + ?,
+            matches_drawn     = matches_drawn + ?,
+            matches_lost      = matches_lost + ?,
+            goals_scored      = goals_scored + ?,
+            goals_conceded    = goals_conceded + ?,
             total_coins_earned = total_coins_earned + ?,
-            updated_at = ?
+            win_streak        = ?,
+            best_win_streak   = ?,
+            updated_at        = ?
          WHERE profile_id = ?",
     )
     .bind(w)
@@ -59,6 +67,8 @@ pub async fn record_match(
     .bind(goals_for)
     .bind(goals_against)
     .bind(coins)
+    .bind(new_streak)
+    .bind(new_best)
     .bind(&now)
     .bind(profile_id)
     .execute(pool)
@@ -70,21 +80,25 @@ pub async fn record_match(
 pub async fn increment_packs_opened(pool: &Pool, profile_id: &str) -> AppResult<()> {
     get_or_create(pool, profile_id).await?;
     let now = chrono::Utc::now().to_rfc3339();
-    sqlx::query("UPDATE statistics SET packs_opened = packs_opened + 1, updated_at = ? WHERE profile_id = ?")
-        .bind(&now)
-        .bind(profile_id)
-        .execute(pool)
-        .await?;
+    sqlx::query(
+        "UPDATE statistics SET packs_opened = packs_opened + 1, updated_at = ? WHERE profile_id = ?",
+    )
+    .bind(&now)
+    .bind(profile_id)
+    .execute(pool)
+    .await?;
     Ok(())
 }
 
 pub async fn increment_sbcs_completed(pool: &Pool, profile_id: &str) -> AppResult<()> {
     get_or_create(pool, profile_id).await?;
     let now = chrono::Utc::now().to_rfc3339();
-    sqlx::query("UPDATE statistics SET sbcs_completed = sbcs_completed + 1, updated_at = ? WHERE profile_id = ?")
-        .bind(&now)
-        .bind(profile_id)
-        .execute(pool)
-        .await?;
+    sqlx::query(
+        "UPDATE statistics SET sbcs_completed = sbcs_completed + 1, updated_at = ? WHERE profile_id = ?",
+    )
+    .bind(&now)
+    .bind(profile_id)
+    .execute(pool)
+    .await?;
     Ok(())
 }