Here is some information related to specific meets including WPIAL and PIAA Championships. Additional info can be found on the Penntrack site.
Gateway Invitational September 5
Red White and Blue Invitational September 12
Kiski Invitational Invitational September 17
PIAA Foundation Invitational September 26
Bald Eagle Invitational October 3
Section IV Championship October 7
TSTCA Invitational October 22
WPIAL Championship October 29
PIAA Championship November 7