Results/Photos

Date: Sept. 27, 2026 Participant: Chris Definis #13265 Race: 2026 Boulderthon Marathon Distance: 26.2 miles

Strong Front Half Gives Way to a Tough Final 10K Chris Definis completed the marathon in 4:04:35, an overall pace of 9:20 per mile. He built a steady rhythm through the opening miles, holding between 8:15 and 8:26 per mile from mile 1 through mile 18, before the pace eased into the 9:0012:00 range over the closing stretch, settling in with a 9:51 final mile back into downtown Boulder. The strongest stretch of the race came from mile 1 through mile 18, where Definis covered that distance in roughly 2:31:59, an average of about 8:24 per mile a well-controlled effort sustained over more than two hours. That opening pace held firm well past the course's approach toward Boulder Reservoir, a testament to disciplined early pacing at altitude, with Boulder sitting above 5,000 feet, before the finish on the Pearl Street Mall.