Navigation: Homepage → Favourite Competitions (left-hand side)
Adding an item: browse the available markets and sports, then tap the star icon next to anything you want to follow.
Removing an item: tap the star icon next to that item again, or tap the trash bin icon in the upper-left corner to clear your whole Favourites list at once.
The content shown in the screenshot(s) is for illustration purposes only and may not reflect real user data.