diff --git a/Assets/Scripts/Scenes/Ride/Competiton/CompetitionUIManager.cs b/Assets/Scripts/Scenes/Ride/Competiton/CompetitionUIManager.cs
index 4420005f..db9b2006 100644
--- a/Assets/Scripts/Scenes/Ride/Competiton/CompetitionUIManager.cs
+++ b/Assets/Scripts/Scenes/Ride/Competiton/CompetitionUIManager.cs
@@ -102,7 +102,7 @@ namespace Assets.Scenes.Ride.Scripts
             miniMap.SetActive(false); //隐藏小地图
             //viewButton.gameObject.SetActive(false);//隐藏切换视角
             headPanel.SetActive(!mainController.isWatch); //隐藏海拔图观察者的头像
-            
+            competitionModel = mainController.cyclingController as CompetitionModel;
             if (competitionModel == null)
                 return;
 
diff --git a/Assets/Scripts/Scenes/Ride/Scripts/BaseUIManager.cs b/Assets/Scripts/Scenes/Ride/Scripts/BaseUIManager.cs
index 3c32fbd1..0df4b91c 100644
--- a/Assets/Scripts/Scenes/Ride/Scripts/BaseUIManager.cs
+++ b/Assets/Scripts/Scenes/Ride/Scripts/BaseUIManager.cs
@@ -113,7 +113,7 @@ namespace Assets.Scenes.Ride.Scripts
         protected virtual void Start()
         {
             InitData();//初始
-            RenderChart();//渲染海拔图
+         
         }
         Text totalDistanceCompetition { get; set; }
         GameObject distanceIconCompetition { get; set; }
@@ -318,6 +318,7 @@ namespace Assets.Scenes.Ride.Scripts
                 shadowButton.enabled = true;
                 shadowButton.interactable = true;
             }
+            RenderChart();//渲染海拔图
             //默认地图3d/2d
             DefaultView(routeInstance);
         }
diff --git a/Assets/Scripts/Scenes/Ride/Scripts/ChartDataSourceScript.cs b/Assets/Scripts/Scenes/Ride/Scripts/ChartDataSourceScript.cs
index beb1b607..9370ca71 100644
--- a/Assets/Scripts/Scenes/Ride/Scripts/ChartDataSourceScript.cs
+++ b/Assets/Scripts/Scenes/Ride/Scripts/ChartDataSourceScript.cs
@@ -32,6 +32,8 @@ namespace Assets.Scenes.Ride.Scripts
 
         public double GetCurrentStart(int currentIndex)
         {
+            if (currentIndex == 0)
+                return 0;
             int i = currentIndex / targetPoints;
             int max = mData.Count() - targetPoints;
             var current = i * targetPoints;
@@ -238,6 +240,10 @@ namespace Assets.Scenes.Ride.Scripts
                 return;
             }
             mData = data;
+            if (targetPoints > mData.Count)
+            {
+                targetPoints = mData.Count;
+            }
             LoadPage(currentPagePosition); // load the page at position 0
         }