[Martin Smith]

The app only shows the next race for each series. If you want to do the 16:00 race you have to wait to register until after the 13:00 race has begun.

If a race is fully booked people get dropped off the list according to their rank, not the time they registered.

If you register for a race and want to cancel you'll be shown a button to cancel up to 5 minutes before the scheduled start.