Results/Photos

Date: Sept. 27, 2026 Participant: Richard Bortzfield #26574 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Negative Split Carries Him Home Strong Richard Bortzfield finished the 2026 Boulderthon Half Marathon in 1:41:36, an average pace of 7:45 per mile. He opened with a first mile at 8:09, held in the 7:55-8:11 range through the middle miles, then found another gear late, closing miles 9 through 13 between 7:11 and 7:34. That final mile, at 7:11, was his fastest full mile of the race, capping a steady tightening of pace across the back half of the course. The race finished on the Pearl Street Mall in downtown Boulder, a fitting stage for a runner who built momentum all the way to the line. Given Boulder sits above 5,000 feet, that late acceleration stands out as a well-managed effort. Runners looking to build on this could experiment with a touch more aggression in the middle miles, where pace held rather than dropped.