Events/races can only be deleted in the Stryd app on either iOS or Android with the following instructions.
Deleting an Event on iOS:
1) On the profile screen, find the event card you wish to delete.
2) Long-press (by pressing and holding on the card) on the event to get a prompt to delete it.
OR
1) Find your event in the calendar.
2) Long-press (by pressing and holding on the card) on the event to get a prompt to delete it.
Deleting and Event on Android:
1) On the profile screen, find the event card you wish to delete.
2) Long-press (by pressing and holding on the card) on the event to get a prompt to delete it.