1. Construct a race gate with a race computer. (Gate A)
2. Open the race computer menu.
3. Create a race on the race computer.
4. Close the race computer menu.
5. Reopen the race menu from either the race computer or the HUD.
The previously created race is not visible.
It can be made to reappear by linking gate A to another one (gate B) and creating another race on the gate B computer.