diff --git a/static/javascript/statistics.js b/static/javascript/statistics.js
index f3cad01..8674e78 100644
--- a/static/javascript/statistics.js
+++ b/static/javascript/statistics.js
@@ -174,6 +174,12 @@ async function create_multi_line_chart(statistic_data, name=''){
   let all_dates = []
 
   for (key in statistic_data){
+
+    for (date in statistic_data[key].result){
+      if (statistic_data[key].result[date] == 0){
+        statistic_data[key].result[date] = null
+      }
+    }
     if (!Object.keys(important_player_name_colors).includes(key)){
       dataset = {
         label: key,
@@ -491,6 +497,6 @@ async function loadStatistics(){
     }
   
   console.log(winrate_over_time_statistic_data)
-  create_multi_line_chart(winrate_over_time_statistic_data)
+  create_multi_line_chart(winrate_over_time_statistic_data, 'Winrate van spelers over tijd')
 
 }
\ No newline at end of file