ROH announces first round matches in the title tournament

The first round matches are:

7/27 in Providence

Adam Cole vs. Mark Briscoe

Jay Lethal vs. Sonjay Dutt

Karl Anderson vs. ACH

8/3 in Toronto

Tommaso Ciampa vs. winner of Silas Young vs. Adam Page on 7/27

Michael Bennett vs. B.J. Whitmer

Brian Kendrick vs. Kevin Steen

Paul London vs. Michael Elgin

Matt Taven vs. Roderick Strong

What do you consider the main event at WrestleMania?