Ride shorter after uploaded on STRAVA

I always liked round numbers and want my rides to finish as 50, 60, 75 km etc. I always finish my ZWIFT rides at such numbers and after uploaded it shows in most cases little less. Few days ago I did 101,1 km on ZWIFT to make sure there is +100 on STRAVA, but finally there was 99,7 km :frowning: Is there any solution?