There’s an interesting protocol for splitting a Go or chess game over multiple days so that neither party has the entire time to think about their response to the last move: at the end of the day the final move is made by one player but is sealed, not to be revealed until the start of the next session.

For this to work on an internet competition, the judges would need a backup, possibly very low bandwidth communication mechanism that survives a network outage.

This wouldn’t save any real-time esports, but would be serviceable for turn based systems.