Match Score

Saving gammon is addressed explicitly (Rule 4.5.3).; The match score must be recorded (Rule 4.6.1) and updated after the completion of each game (Rule 4.6.2).; Errors in scorekeeping are handled by rule (Rule 4.6.3).

Source: Rule 4.5.3, Rule 4.6.1, Rule 4.6.2, Rule 4.6.3, Rule 1.8.2

Send this to your friend — argument over.