The Trebles board league is played on Monday nights. There are two divisions in the trebles league, League 'A' and League 'B'. Teams of no less than 6 players play a total of 11 games, scoring 1 point per game won.
Playing format for both leagues : Two games of threes are played ( 701 ) followed by 6 games of singles ( best of 3 legs, 501 ) and then 3 games of pairs 701.
Games start at 8:30pm and winning captains to submit the scorecard within 48 hours.