Here are some facts about the Slippery Rock summer basketball league.

• Teams play a seven-week schedule, followed by a playoff tournament to crown the champion.

• Each half is 20-minutes with a continuously running clock except for the final minute of each half.

• Butler County area teams include Slippery Rock, Butler, Knoch, Moniteau and Union.

• Three years ago, the league started with 12 teams, grew to 18 last year and has now doubled in size to 24 squads this summer.

• Of the 18 teams that participated in the league last year, 14 made the high school playoffs.

• It is the largest coach-run league in the state.