diff --git a/ui/chart/src/chart.ratingHistory.ts b/ui/chart/src/chart.ratingHistory.ts
index fb9bbb25848c3..e5fb228920c5a 100644
--- a/ui/chart/src/chart.ratingHistory.ts
+++ b/ui/chart/src/chart.ratingHistory.ts
@@ -324,6 +324,10 @@ function smoothDates(data: TsAndRating[], step: number, begin: number) {
   const reversed = data.slice().reverse();
   const allDates: number[] = [];
   for (let i = begin; i <= end; i += oneStep) allDates.push(i);
+  // Ensure latest rating is always included (regardless of step or begin)
+  if (allDates[allDates.length - 1] < end) {
+    allDates.push(end);
+  }
   const result: Point[] = [];
   for (let j = 0; j < allDates.length; j++) {
     const match = reversed.find(x => x.ts <= allDates[j]);