Read it and saw it is 9ball
http://superbilliardsexpo.com/juniors-12/
Both 12 and under and 17 and under are the same:
PENNSYLVANIA Jrs STATE 9-BALL PLAYERS CHAMPIONSHIP
17 & Under Division
The Super Billiards Expo features two Junior Divisions of competition, both completely free to play in!
We will once again be partnering with the Billiard Education Foundation (BEF) to bring you the Pennsylvania Jrs State 9-Ball Players Championship!
The winner of each division (17 & Under, 12 & Under) will win paid entry into the BEF Junior Nationals! In addition, the top 16 players in each division will qualify to compete in the BEF Junior Nationals.
Each division’s winner will be recognized by the BEF as the Pennsylvania Juniors State 9-Ball Champion! You can read more about this event on the BEF page for the Pennsylvania Jrs State 9-Ball Players Championship.