diff --git a/app/common/service/GameLiveService.php b/app/common/service/GameLiveService.php
index ac6bf3f..8fe4072 100644
--- a/app/common/service/GameLiveService.php
+++ b/app/common/service/GameLiveService.php
@@ -697,7 +697,7 @@ final class GameLiveService
                     'update_time' => time(),
                 ]);
                 if (GameRecordService::isLiveRuntimeEnabled()) {
-                    GameRecordService::createNextRecordRow();
+                    GameRecordService::createNextRecordRowIfNoActive();
                 }
                 Db::commit();
             } catch (Throwable $e) {
diff --git a/app/common/service/GameRecordService.php b/app/common/service/GameRecordService.php
index 6e3e167..4a82e64 100644
--- a/app/common/service/GameRecordService.php
+++ b/app/common/service/GameRecordService.php
@@ -14,6 +14,7 @@ final class GameRecordService
     public const KEY_MANUAL_CREATE = 'period_manual_create_enabled';
 
     private const ACTIVE_STATUSES = [0, 1, 2, 3];
+    private const AUTO_CREATE_LOCK_KEY = 'auto-create-next-record';
 
     public static function getConfigBool(string $key): bool
     {
@@ -53,11 +54,8 @@ final class GameRecordService
         if (!self::getConfigBool(self::KEY_AUTO_CREATE)) {
             return;
         }
-        if (self::hasActiveRecord()) {
-            return;
-        }
         try {
-            self::createNextRecordRow();
+            self::createNextRecordRowIfNoActive();
         } catch (Throwable) {
         }
     }
@@ -84,10 +82,7 @@ final class GameRecordService
         if (!self::getConfigBool(self::KEY_AUTO_CREATE)) {
             return null;
         }
-        if (self::hasActiveRecord()) {
-            return null;
-        }
-        return self::createNextRecordRow();
+        return self::createNextRecordRowIfNoActive();
     }
 
     /**
@@ -111,11 +106,8 @@ final class GameRecordService
         if (!self::getConfigBool(self::KEY_AUTO_CREATE)) {
             return;
         }
-        if (self::hasActiveRecord()) {
-            return;
-        }
         try {
-            self::createNextRecordRow();
+            self::createNextRecordRowIfNoActive();
         } catch (Throwable) {
         }
     }
@@ -132,6 +124,27 @@ final class GameRecordService
      */
     public static function createNextRecordRow(): string
     {
+        $created = self::createNextRecordRowIfNoActive();
+        if ($created === null) {
+            throw new \RuntimeException((string) __('There is an unfinished round; cannot create a new one'));
+        }
+
+        return $created;
+    }
+
+    /**
+     * 幂等插入下一期：有进行中局则不插入，返回 null。
+     */
+    public static function createNextRecordRowIfNoActive(): ?string
+    {
+        $lock = GameHotDataLock::tryAcquireWithWait(GameHotDataLock::TYPE_GAME_RECORD, self::AUTO_CREATE_LOCK_KEY, 1500);
+        if (!$lock['acquired']) {
+            return null;
+        }
+        try {
+            if (self::hasActiveRecord()) {
+                return null;
+            }
         $periodNo = self::generatePeriodNo();
         $now = time();
         Db::name('game_record')->insert([
@@ -145,6 +158,9 @@ final class GameRecordService
         ]);
         GameHotDataCoordinator::afterGameRecordCommitted(null);
         return $periodNo;
+        } finally {
+            GameHotDataLock::release(GameHotDataLock::TYPE_GAME_RECORD, self::AUTO_CREATE_LOCK_KEY, $lock['token'], $lock['redis_lock']);
+        }
     }
 
     private static function generatePeriodNo(): string