diff --git a/lib/util.js b/lib/util.js
index d186e55..86cb589 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -54,6 +54,12 @@ function trimUselessPings(data) {
 		for (var x = 0; x < listing.length; x++) {
 			var entry = listing[x];
 
+			// Make sure we're sorted, otherwise the smoothing code below can
+			// select wrongly get an older (and worse) ping before one with players online.
+			listing.sort(function(a, b) {
+				return a[0] - b[0];
+			});
+
 			// 0 is the index of the timestamp.
 			// See the convertPingsToGraph method.
 			if (entry[0] - lastTimestamp >= 60 * 1000) {