Backgammon FAQ
Backgammon Resign automatically

How come my opponent managed to resign automatically for a single point, while he was about to lose by Gammon?

In single games, when the stake limit is equal to the original stake (or current doubling state), the game will end automatically without asking your opponent's permission.
Example: Suppose the game has a stake of $2 per point with a limit of $2, resignations will be approved automatically. If the limit is set at either $3 or $4, and the game was doubled, resignations would also be approved immediately.
In series games (a.k.a. match play), it will be possible only when the resigning player has no more points to lose. Example: Supposed you are in a lead of 4-2 in a series up to 5. If your opponent then resigns, his resignation is approved automatically..