Hey Dean,
For the BIR Combo weekends the front gate opens at 5pm on Thursday nights, and are open from there on out.
Tech is open starting at 9:00 Friday, usually closes around 5 on Friday, opens at 8am Saturday.
Daily schedule for the weekends S/SS usually runs Q1 around 10:00 on Saturday and Sunday. Saturday S/SS gets 2 qualifiers (weather dependent), Sunday one shot. Eliminations start after qualifying until complete.
The two Friday events, we are shooting for a start time of 12:00 for Q1, then right into eliminations. But will confirm that well before the event!
Full event details here:
https://www.birmn.com/bracket-drag-racing