Blake Hanson has dropped 2:39 from his freshman PR to his senior year.
Who has improved the most from their freshman year to their senior year?
McGinley Zastrow.
The Fruita-Monument senior was a 19:23 5ker his freshman year. Now he's run 15:38 for a massive leap of 3:44.
Zastrow is currently the only senior to drop over three minutes from his freshman personal best.
Heritage senior Jason Becker comes in No. 2 on this list - and he's got Broomfield's James Thomas hot on his heels.
Becker went from 18:43 to 15:51 for an improvement of 2:51, while Thomas went from 19:06 to 16:17 for an improvement of 2:48.
Joshua Jester, Blake Hansen, Jacob Crookston, Michael Beck, and Aiden Quayle all have made leaps of over 2:30 as well.
The graph below shows improvement from freshmen to senior year, on the next page, we have year-over-year progressions from freshmen to senior year, so you can see how seniors ran throughout high school.
See how much every senior has improved from their freshmen year: