M35-39: Korir Dominates in the Boston Heat

• Leonard Korir wins in 29:45 (4:47/mi), a gap of 3 minutes 25 seconds over runner-up Filip Vercruysse — the largest margin on the podium by far.
• Vercruysse to Pagan: 1:26 separates 2nd from 3rd; Pagan to Smith: another 52 seconds back, with the top four spread across just under 6 minutes total.
• Tight mid-pack battle: Zachary Shalit and Andrew Kephart both clocked 37:20 — same displayed time, different places, with Shalit edging Kephart by the finest of margins to claim 9th.
• 518 finishers made this one of the deepest age groups on the course on a brutally warm 85°F morning in Boston.

Leonard Korir simply ran away from the M35-39 field. His 29:45 at 4:47 per mile was a performance in a different register from everyone else on the day — on a course baking at 85°F with humidity pushing 64%, that kind of pace demands respect. He moved fluidly through the men's field during the race, tracking between 12th and 14th among men at various checkpoints, and posted the 14th-fastest men's split on the 5K-to-8K stretch. The win was never seriously in doubt.

Behind him, Filip Vercruysse claimed a solid 2nd in 33:10, finishing with the 30th-fastest men's split on the 8K-to-finish segment to close well. Edwin Pagan of Woodland Park, NJ took 3rd in 34:36, while Lindsay Smith of South Hadley, MA rounded out the podium in 4th at 35:28 — Smith actually gaining ground through the back half, moving from 53rd to 52nd among men by the finish. Ryan Sloan of Somerville had the strongest finishing kick of the top five, climbing from 79th among men at the first checkpoint all the way to 67th by the tape, wrapping up 5th in 36:20.

The middle of the pack was a proper scrum. Robert Burns, Brian Schell, and Ryuta Wada were separated by just six seconds across 6th, 7th, and 8th place — all finishing between 36:37 and 36:48 at roughly 5:54–5:55 per mile. Then came the Shalit-Kephart photo finish: both credited with 37:20, but the timing chip gave Zachary Shalit of Cambridge the nod for 9th. In a field of 518 on a sweltering June morning in Boston, every second counted.