diff --git a/src/server/game/champship_mgr.go b/src/server/game/champship_mgr.go
index f9510804..50bf1232 100644
--- a/src/server/game/champship_mgr.go
+++ b/src/server/game/champship_mgr.go
@@ -2,6 +2,7 @@ package game
 
 import (
 	"fmt"
+	"maps"
 	"math"
 
 	avatarCfg "server/conf/avatar"
@@ -136,9 +137,7 @@ func (c *ChampshipMgr) ZeroUpdate() (interface{}, error) {
 	data.ZeroTime = GoUtil.ZeroTimestamp()
 	// 深拷贝 map，避免多个协程持有同一个 map 引用导致并发读写
 	oldRank := make(map[int][]*ChampshipRank, len(data.Rank))
-	for k, v := range data.Rank {
-		oldRank[k] = v
-	}
+	maps.Copy(oldRank, data.Rank)
 	oldRobot := make(map[int]*ChampshipRobot, len(data.Robot))
 	for k, v := range data.Robot {
 		oldRobot[k] = v
@@ -162,11 +161,15 @@ func (c *ChampshipMgr) ZeroUpdate() (interface{}, error) {
 		c.SetRankCache(k)
 	}
 	data.mu.Unlock()
-
-	c.mDispatr.AfterFunc(time.Duration(GoUtil.NextZeroTimestampDuration())*time.Second, func() {
+	timeDuration := GoUtil.NextZeroTimestampDuration()
+	if timeDuration <= 0 {
+		log.Error("championship zero update error")
+		timeDuration = 24 * 3600
+	}
+	c.mDispatr.AfterFunc(time.Duration(timeDuration)*time.Second, func() {
 		c.ZeroUpdate()
 	})
-	c.mDispatr.AfterFunc(time.Duration(GoUtil.NextZeroTimestampDuration()+1800)*time.Second, func() {
+	c.mDispatr.AfterFunc(time.Duration(timeDuration+1800)*time.Second, func() {
 		c.ZeroNotifyAll()
 	})
 	// 在锁外通知玩家，避免在持有锁时调用外部函数