diff --git a/src/pages/overall/overall-line/overall-line.ts b/src/pages/overall/overall-line/overall-line.ts
index 641cd40..c8f167a 100644
--- a/src/pages/overall/overall-line/overall-line.ts
+++ b/src/pages/overall/overall-line/overall-line.ts
@@ -1,6 +1,7 @@
 import {Component, Prop, Vue} from 'vue-property-decorator';
 import moment from 'moment';
 import Course from '@/logic/course';
+import Constants from '@/constants';
 
 @Component({
 })
@@ -38,6 +39,13 @@ export default class OverallLine extends Vue
         {
             smooth: true,
 
+            // Quarter lines
+            markLine:
+            {
+                silent: true,
+                data: Constants.TERMS.map(term => {return {xAxis: term.getTime()}})
+            },
+
             // Mark area
             markArea:
             {