Hello @CMasem
Welcome to the Strava Community Hub and thanks so much for being a long time Strava Subscriber! Rides recorded in velodromes qualify as indoor activities, since it's not possible to lock in a GPS signal while riding inside.
When you record indoors you should disable the GPS on your device while recording an indoor activity. This will help with correcting the analysis of your data such as distance and speed.
Additionally, it's important to remember that we do not calculate a moving time for indoor activities, like we do for GPS based outdoor rides. Since we show only total elapsed time, you'll want to keep that in mind and possibly make a number of shorter recordings that do not include any stopped time for best results. More information
Check out our recent blog post on recording indoor activities.
Let us know how your velodrome experience is and thanks again for joining the Community Hub.