Here's a link to last year's A10 men's basketball tournament bracket:
https://atlantic10.com/sports/2022/8/10/MBB23.aspxThe bottom four seeds each played each other on Wednesday night for a chance to play the 5th and 6th seeds. The top FOUR teams got byes in the first two rounds and faced the teams that advanced from the Thursday night games where the 5-10 seeds began play.
However, with the introduction of a 15th team, the bracket will change. They might have three games on Wednesday instead of two, or the last place team might not qualify. We'll have to wait and see how they handle the bracket. But basically, the first night is an even worse Thursday night at Arch Madness.