diff --git a/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/UploadUserPlaylogHandler.kt b/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/UploadUserPlaylogHandler.kt
index 6f9c7a36..d12a6ddd 100644
--- a/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/UploadUserPlaylogHandler.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/UploadUserPlaylogHandler.kt
@@ -43,6 +43,14 @@ class UploadUserPlaylogHandler(
             ).increment()
         }
 
+        // Check duplicate
+        val isDup = playlogRepo.findByUser_Card_ExtIdAndMusicIdAndUserPlayDate(
+            req.userId,
+            req.userPlaylog.musicId,
+            req.userPlaylog.userPlayDate
+        ).size > 0
+        if (isDup) return """{"returnCode":1,"apiName":"com.sega.maimai2servlet.api.UploadUserPlaylogApi"}"""
+
         // Save if the user is registered
         val u = userDataRepository.findByCardExtId(req.userId).getOrNull()
         if (u != null) playlogRepo.save(req.userPlaylog.apply { user = u })
diff --git a/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt b/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
index 55113794..6d130c44 100644
--- a/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
@@ -99,6 +99,11 @@ interface Mai2UserOptionRepo : Mai2UserLinked<Mai2UserOption>
 
 interface Mai2UserPlaylogRepo : GenericPlaylogRepo<Mai2UserPlaylog>, Mai2UserLinked<Mai2UserPlaylog> {
     fun findByUser_Card_ExtIdAndMusicIdAndLevel(userId: Long, musicId: Int, level: Int): List<Mai2UserPlaylog>
+    fun findByUser_Card_ExtIdAndMusicIdAndUserPlayDate(
+        userCardExtId: Long,
+        musicId: Int,
+        userPlayDate: String
+    ): MutableList<Mai2UserPlaylog>
 }
 
 interface Mai2UserPrintDetailRepo : JpaRepository<Mai2UserPrintDetail, Long>