diff --git a/api/src/routes/api/stats.js b/api/src/routes/api/stats.js
index 5f4805d..868f97c 100644
--- a/api/src/routes/api/stats.js
+++ b/api/src/routes/api/stats.js
@@ -7,6 +7,9 @@ const wrapRoute = require('../../_helpers/wrapRoute');
 // round to this number of meters for privacy reasons
 const TRACK_LENGTH_ROUNDING = 1000;
 
+// round to this number of seconds for privacy reasons
+const TRACK_DURATION_ROUNDING = 120;
+
 router.get(
   '/',
   wrapRoute(async (req, res) => {
@@ -17,11 +20,17 @@ router.get(
     const trackStats = await Track.aggregate([
       {
         $addFields: {
-          trackLength: '$statistics.length',
+          trackLength: {
+            $cond: [
+              {$lt: ['$statistics.length', 500000]},
+              '$statistics.length',
+              0,
+            ],
+          },
           numEvents: '$statistics.numEvents',
           trackDuration: {
             $cond: [
-              { $and: ['$statistics.recordedUntil', '$statistics.recordedAt'] },
+              { $and: ['$statistics.recordedUntil', '$statistics.recordedAt', {$gt: ['$statistics.recordedAt', new Date('2010-01-01')]}] },
               { $subtract: ['$statistics.recordedUntil', '$statistics.recordedAt'] },
               0,
             ],
@@ -44,14 +53,14 @@ router.get(
       : [0,0,0];
 
     const trackLengthPrivatized = Math.floor(trackLength / TRACK_LENGTH_ROUNDING) * TRACK_LENGTH_ROUNDING;
+    const trackDurationPrivatized = Math.round(trackDuration / 1000 / TRACK_DURATION_ROUNDING) * TRACK_DURATION_ROUNDING;
 
     return res.json({
       publicTrackCount,
-      publicTrackLength: trackLengthPrivatized,
       trackLength: trackLengthPrivatized,
+      trackDuration: trackDurationPrivatized,
       numEvents,
       trackCount,
-      trackDuration: Math.round(trackDuration / 1000),
       userCount,
     });
   }),
diff --git a/frontend/src/pages/HomePage.js b/frontend/src/pages/HomePage.js
index feef8dc..3ad415d 100644
--- a/frontend/src/pages/HomePage.js
+++ b/frontend/src/pages/HomePage.js
@@ -47,12 +47,12 @@ function Stats() {
 
         <Statistic.Group widths={2} size="mini">
           <Statistic>
-            <Statistic.Value>{Number(stats?.publicTrackLength / 1000).toFixed(1)}</Statistic.Value>
-            <Statistic.Label>km track length</Statistic.Label>
+            <Statistic.Value>{Number(stats?.trackLength / 1000).toFixed(1)} km</Statistic.Value>
+            <Statistic.Label>track length</Statistic.Label>
           </Statistic>
           <Statistic>
-            <Statistic.Value>{formatDuration(stats?.trackDuration)}</Statistic.Value>
-            <Statistic.Label>hours recorded</Statistic.Label>
+            <Statistic.Value>{formatDuration(stats?.trackDuration)} h</Statistic.Value>
+            <Statistic.Label>recorded</Statistic.Label>
           </Statistic>
           <Statistic>
             <Statistic.Value>{stats?.numEvents}</Statistic.Value>