To delete a sport, go to the Sports section of the app. After the page opens, click on the Delete button next to the sports name.

Once you click the delete button, a confirmation popup will appear, asking you to confirm the deletion.

If you are sure that you want to delete the sport, click the Ok button and the sport will be deleted.
NOTE: Deleting sport will cause your previous bets and analytics to become unreliable until you update your previous bets.