A player who resigns matches or times out can change the whole outcome of a Triple Gammon tournament.

It's okay if they do it for everyone but when they only do with a selection of players it adds 5 points to the lucky ones (or the friends in the case of manipulations), whereas those whose matches with them have finished will have gained nothing, a single point or maybe 3 or only rarely, the backgammon's full 5.

Timeouts cannot be prevented but resigning matches is not an option in TTTs unless the player withdraws completely.

To prevent a player from spoiling the tournament, the TTT rules remove a player who inadvertantly or deliberately adds dollops of points to people's scores in this way. They may continue to play out the remaining games if they wish, but they and all their games are no longer part of the tournament (whether that's total removal or just not contributing to the scoring).