diff --git a/SVSim.Database/Repositories/BattlePass/ViewerBattlePassRepository.cs b/SVSim.Database/Repositories/BattlePass/ViewerBattlePassRepository.cs
index ebdd6ea..ffb2c7e 100644
--- a/SVSim.Database/Repositories/BattlePass/ViewerBattlePassRepository.cs
+++ b/SVSim.Database/Repositories/BattlePass/ViewerBattlePassRepository.cs
@@ -26,7 +26,18 @@ public sealed class ViewerBattlePassRepository : IViewerBattlePassRepository
             WeeklyPeriodStart = null,
         };
         _db.ViewerBattlePassProgress.Add(entry);
-        return entry;
+        try
+        {
+            await _db.SaveChangesAsync(ct);
+            return entry;
+        }
+        catch (DbUpdateException)
+        {
+            // Concurrent /info call won the race; re-read the row the other thread persisted.
+            _db.Entry(entry).State = EntityState.Detached;
+            return await _db.ViewerBattlePassProgress
+                .FirstAsync(p => p.ViewerId == viewerId && p.SeasonId == seasonId, ct);
+        }
     }
 
     public Task<List<ViewerBattlePassClaimEntry>> GetClaimsAsync(long viewerId, int seasonId, CancellationToken ct) =>
diff --git a/SVSim.EmulatedEntrypoint/Services/BattlePassService.cs b/SVSim.EmulatedEntrypoint/Services/BattlePassService.cs
index bab8424..cf99248 100644
--- a/SVSim.EmulatedEntrypoint/Services/BattlePassService.cs
+++ b/SVSim.EmulatedEntrypoint/Services/BattlePassService.cs
@@ -13,6 +13,9 @@ public sealed class BattlePassService : IBattlePassService
     // Default cap mirrors the captured /battle_pass/info.gauge_info.weekly_limit_point.
     public const int WeeklyLimitPointDefault = 3000;
 
+    /// <summary>JST = UTC+9. Capture format ("2026-04-01 02:00:00") is implicit JST.</summary>
+    private static readonly TimeSpan JstOffset = TimeSpan.FromHours(9);
+
     private readonly IBattlePassRepository _bp;
     private readonly IViewerBattlePassRepository _viewerBp;
     private readonly TimeProvider _time;
@@ -46,8 +49,6 @@ public sealed class BattlePassService : IBattlePassService
         if (season is null) return null;
 
         var progress = await _viewerBp.GetOrCreateProgressAsync(viewerId, season.Id, ct);
-        // Persist the lazy-created row so concurrent /info calls don't try to create twice.
-        await _db.SaveChangesAsync(ct);
 
         var rewards = await _bp.GetSeasonRewardsAsync(season.Id, ct);
         var claims = await _viewerBp.GetClaimsAsync(viewerId, season.Id, ct);
@@ -123,7 +124,7 @@ public sealed class BattlePassService : IBattlePassService
     private static string FormatWireDate(DateTimeOffset dt) =>
         // Capture format is "2026-04-01 02:00:00" (JST, space-separated). Emit in same shape
         // in JST so the client gets back what it gave.
-        dt.ToOffset(TimeSpan.FromHours(9))
+        dt.ToOffset(JstOffset)
           .ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
 
     private static string Inv(long v) => v.ToString(CultureInfo.InvariantCulture);