The underdog Flyers are now in the Elite Eight for the first time since 1984 after an emphatic 82-72 victory over Stanford on Thursday night.
Jordan Sibert scored 18 points and freshman Kendall Pollard added a season-high 12, as Dayton (26-10) made sure this one wasn't particularly close after slipping by in the first two rounds.
No. 10 Stanford (23-13) had the superior post play, but it wasn't enough. Chasson Randle led the Cardinal with 21 points, but shot 5 of 21 from the field. Dwight Powell added 17 and Stefan Nastic had 15.