Adding risk around a game
Buys must satisfy the recorded game-start restriction, including the five minutes before and after scheduled start. New risk is blocked after a market ends. Start times can change; a game card is not a promise that every order will pass its checks.
A held position
Closing requires an account and market that permit execution. An ended game is not an immediate settlement, and a pause can prevent closing. The position stays held until a recorded close or settlement changes it.