The Summer League is a Shootpool-run competition that started in June 2013 to offer a League competition through the summer months with an alternative match format. Teams score 3 points for a win. If teams are level, the league placings will be decided by points, frame difference, frames won & head to head between the level teams.

The league will played to World Rules until 2018, before changing to Blackball Rules from 2019 onwards. Each match is split into 2 halves. The first half will consist of 6 singles. The second half will be 4 singles followed by a scotch doubles frame. Players can only play a maximum of two frames, so either one singles frame in each half or a singles in the first half & the scotch doubles in the second half. The home team captain should first enter 6 players on the scorecard for the first half and the away team captain will then do the same, before switching for the second half where the away team names first.

The break is decided by a lag between the two players on each break. The 2019 final saw an extension to the format, in which the match would be played as a first to 9, with two sets of 6 singles, and a final set of 4 and 1 scotch doubles.