Last year, Myles Thornburg put a charge in the school record but came up just milliseconds away from besting the mark of 15:35.
The senior was 11th overall in the race and was third for Missouri runners, behind Andrew Hauser (second) and Luke Sievers (eighth) from Columbia Rock Bridge. The top three runners all ran sub-15 minutes.
He ran 15:40.71 at the same race last year, one of four times he broke 16 minutes in 2022.
This year, the Class 5 all-stater -- 13th last fall -- opened with a 15:47.30 in the Tim Nixon Invitational in Liberty.