diff --git a/LiveConditionsServerPlugin.cs b/LiveConditionsServerPlugin.cs
index 6d64563..a4f0793 100644
--- a/LiveConditionsServerPlugin.cs
+++ b/LiveConditionsServerPlugin.cs
@@ -202,7 +202,7 @@ private async Task UpdateStateAsync() {
 
                 if (PluginManager != null) {
                     foreach (var info in PluginManager.GetDriverInfos()) {
-                        if (info?.IsConnected == true) {
+                        if (info?.IsConnected == true && !float.IsNaN(info.CurrentSpeed) && info.CurrentSpeed > 0) {
                             var drivenDistanceKm = info.CurrentSpeed * UpdateRainPeriod.TotalHours;
                             _drivenLapsEstimate += drivenDistanceKm / _lapLengthKm;
                         }
@@ -529,4 +529,4 @@ private static double GetRoadTemperatureCoefficient(WeatherType type) {
             }
         }
     }
-}
\ No newline at end of file
+}