diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0175be7..0c4b105 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## v3.8 - 2025-09-08 - 修复重复比分显示问题
+- **修复标题中重复比分的问题**：
+  - 修复了在更新比赛比分时可能出现重复比分的bug（如 "0-2 0-1"）
+  - 改进了 `update_event_with_score` 方法，使用更强的正则表达式清理多个比分
+  - 改进了 `update_event_with_result` 方法，先清理所有旧比分再添加最终比分
+- **增强比分更新逻辑**：
+  - 进行中比分更新时会正确移除之前的所有比分
+  - 完成比赛更新时会先清理进行中的比分，再添加最终结果
+  - 确保标题中始终只显示一个比分
+
 ## v3.7 - 2025-09-08 - 增强重复事件处理和TBD管理
 - **改进TBD比赛ID生成**：
   - TBD vs TBD比赛现在使用时间戳生成唯一ID，避免重复创建
@@ -132,6 +142,7 @@
 | v3.5 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | v3.6 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 | v3.7 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
+| v3.8 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
 
 ## 使用建议
 
diff --git a/README.md b/README.md
index 6adf776..d1c15eb 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Dota 2 Calendar Sync v3.7
+# Dota 2 Calendar Sync v3.8
 
 自动从 Liquipedia 获取 Dota 2 Tier 1 比赛信息并同步到 Google Calendar，支持自动更新比赛结果、时间变更、智能管理TBD占位事件和自动清理重复比赛。
 
diff --git a/sync_dota2_matches.py b/sync_dota2_matches.py
index 6c0456d..c9f4479 100644
--- a/sync_dota2_matches.py
+++ b/sync_dota2_matches.py
@@ -608,8 +608,8 @@ class Dota2CalendarSync:
             
             # Update the summary to show current score (without checkmark)
             summary = event.get('summary', '')
-            # Remove any existing score
-            summary = re.sub(r'^\d+[-:]\d+\s+', '', summary)
+            # Remove any existing score (including multiple scores)
+            summary = re.sub(r'^(\d+[-:]\d+\s+)+', '', summary)
             # Add new score at the beginning
             score = match_data.get('score', '?-?')
             summary = f"{score} {summary}"
@@ -661,10 +661,13 @@ class Dota2CalendarSync:
             
             # Update the summary to show it's completed with result
             summary = event.get('summary', '')
-            if '✓' not in summary:
-                # Add checkmark and score right after it
-                score = match_data.get('score', '?-?')
-                summary = f"✓ {score} {summary}"
+            # First remove any existing scores (in-progress scores)
+            summary = re.sub(r'^(\d+[-:]\d+\s+)+', '', summary)
+            # Remove any existing checkmark
+            summary = re.sub(r'^✓\s+', '', summary)
+            # Add checkmark and final score
+            score = match_data.get('score', '?-?')
+            summary = f"✓ {score} {summary}"
             
             # Update the event
             event['description'] = description