diff --git a/pony-frontend/src/App.css b/pony-frontend/src/App.css
index 66c0422..f0d38a8 100644
--- a/pony-frontend/src/App.css
+++ b/pony-frontend/src/App.css
@@ -1795,3 +1795,66 @@ html.tablet-focus-mode #root {
   cursor: pointer;
   margin-bottom: 0.5rem;
 }
+
+
+/* Stats page — mobile responsive */
+@media (max-width: 768px) {
+  .stats-page {
+    padding: 0.75rem;
+  }
+  .stats-page h2 {
+    font-size: 1.4rem;
+  }
+  .stats-page h3 {
+    font-size: 1.1rem;
+    margin-top: 0.75rem;
+  }
+  .stats-overview {
+    gap: 0.5rem;
+  }
+  .stat-item {
+    padding: 0.4rem 0.75rem;
+    font-size: 0.9rem;
+  }
+  .stats-list li {
+    padding: 0.4rem 0.5rem;
+    font-size: 0.85rem;
+  }
+  .back-button {
+    min-height: 44px;
+    min-width: 44px;
+    padding: 0.5rem 0.75rem;
+    font-size: 1rem;
+  }
+}
+
+@media (max-width: 480px) {
+  .stats-page {
+    padding: 0.5rem;
+  }
+  .stats-page h2 {
+    font-size: 1.2rem;
+  }
+  .stats-page h3 {
+    font-size: 1rem;
+    margin-top: 0.6rem;
+  }
+  .stats-overview {
+    flex-direction: column;
+    align-items: stretch;
+    gap: 0.4rem;
+  }
+  .stat-item {
+    text-align: center;
+    padding: 0.5rem;
+  }
+  .stats-list li {
+    padding: 0.35rem 0.4rem;
+    font-size: 0.8rem;
+  }
+  .back-button {
+    width: 100%;
+    text-align: center;
+    padding: 0.6rem;
+  }
+}
diff --git a/web/app/services/persistence.py b/web/app/services/persistence.py
index 6db1365..96e688d 100644
--- a/web/app/services/persistence.py
+++ b/web/app/services/persistence.py
@@ -44,6 +44,7 @@ def _ensure_tables(conn):
             played_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
         )
     """)
+    conn.execute("CREATE INDEX IF NOT EXISTS idx_game_stats_played_at ON game_stats(played_at)")
     conn.commit()
 
 
diff --git a/web/evaluate_game.py b/web/evaluate_game.py
index e8e1601..2f3450c 100644
--- a/web/evaluate_game.py
+++ b/web/evaluate_game.py
@@ -194,6 +194,54 @@ def evaluate_exhaustive():
     return all_runs
 
 
+def compute_per_theme_stats(runs):
+    """Compute win-rate and stats per theme. Returns a list of dicts."""
+    themes = {}
+    for r in runs:
+        t = r["tema"]
+        if t not in themes:
+            themes[t] = {"wins": 0, "mixed": 0, "defeats": 0, "count": 0,
+                         "succeser": [], "fiaskoer": []}
+        themes[t]["count"] += 1
+        themes[t]["succeser"].append(r["succeser"])
+        themes[t]["fiaskoer"].append(r["fiaskoer"])
+        if r.get("victory"):
+            themes[t]["wins"] += 1
+        elif r.get("mixed"):
+            themes[t]["mixed"] += 1
+        elif r.get("defeat"):
+            themes[t]["defeats"] += 1
+
+    per_theme = []
+    for t, d in themes.items():
+        per_theme.append({
+            "tema": t,
+            "count": d["count"],
+            "avg_succeser": round(statistics.mean(d["succeser"]), 2),
+            "avg_fiaskoer": round(statistics.mean(d["fiaskoer"]), 2),
+            "win_rate": round(d["wins"] / d["count"] * 100, 1) if d["count"] else 0,
+            "mixed_rate": round(d["mixed"] / d["count"] * 100, 1) if d["count"] else 0,
+            "defeat_rate": round(d["defeats"] / d["count"] * 100, 1) if d["count"] else 0,
+        })
+    return per_theme
+
+
+def export_json(runs, output_path):
+    """Write per-theme win-rate JSON to a file."""
+    per_theme = compute_per_theme_stats(runs)
+    total = len(runs)
+    victory_count = sum(1 for r in runs if r.get("victory"))
+    json_output = {
+        "total": total,
+        "victory_count": victory_count,
+        "win_rate": round(victory_count / total * 100, 1) if total else 0,
+        "per_theme": per_theme,
+    }
+    with open(output_path, "w", encoding="utf-8") as f:
+        json.dump(json_output, f, indent=2, ensure_ascii=False)
+    print(f"JSON exported to {output_path}")
+
+
 def report(runs):
     total = len(runs)
 
@@ -358,26 +406,26 @@ def report_exhaustive(runs):
     print(json.dumps(json_output, indent=2))
 
 
-def evaluate():
-    all_runs = []
-
-    print(f"Kører {NUM_RUNS} spil-gennemgange...")
-    for i in range(NUM_RUNS):
-        try:
-            all_runs.append(play_one_game())
-        except Exception as e:
-            print(f"  Fejl i løb {i}: {e}")
-
-    print(f"Klar! {len(all_runs)} gennemgange færdige.\n")
-    report(all_runs)
-
-
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
     parser.add_argument("--exhaustive", action="store_true", help="Run all pony×theme combinations")
+    parser.add_argument("--output", type=str, default=None, help="Path to write per-theme win-rate JSON")
     args = parser.parse_args()
     if args.exhaustive:
         runs = evaluate_exhaustive()
         report_exhaustive(runs)
     else:
-        evaluate()
\ No newline at end of file
+        runs = []
+        print(f"Kører {NUM_RUNS} spil-gennemgange...")
+        for i in range(NUM_RUNS):
+            try:
+                runs.append(play_one_game())
+            except Exception as e:
+                print(f"  Fejl i løb {i}: {e}")
+        print(f"Klar! {len(runs)} gennemgange færdige.\n")
+        report(runs)
+    if args.output:
+        if not runs:
+            print("Warning: no runs collected for JSON export.")
+        else:
+            export_json(runs, args.output)
\ No newline at end of file