Inaccurate distances in Strava
Unfortunately, inaccurate data reported in Strava is a known issue, as they unnecessarily include lift distance.
Although Slopes does send everything over correctly (identifying time spent on runs vs lifts), we've had a number of reports that Strava's not displaying the data like they should sometimes.
We've reported it to Strava as have our users, but so far we haven't been able to resolve it with them.