M35-39: Johnson Dominates San Francisco's 5K

• Mark Johnson (1st, 18:28) won the M35-39 field at 5:57/mi — the only finisher in the group to break 19 minutes.
• Rob Smith (2nd, 19:03) was the closest challenger, finishing 35 seconds back; Aaron Russell (3rd, 19:58) rounded out the podium at 6:26/mi.
• A notable gap opened after the podium: Morris Chow (4th, 22:17) finished 2:19 behind Russell, marking a clear break between the top three and the rest of the field.
• Elpizo Choi (15th, 26:31) and Aaron Cohen (14th, 26:21) separated a tight mid-pack cluster, while Chinmaya Dattathri and Juan A. Guzman Mercado (16th–17th, 27:11 each) finished in the exact same time.

Mark Johnson made the M35-39 race his own from the outset, crossing in 18:28 at a 5:57/mi clip — the only man in a 78-finisher field to break the 19-minute barrier. In cool, overcast conditions along the San Francisco streets, that kind of sub-6:00 pace stood apart, and Johnson's margin over second place was never really in doubt.

Rob Smith (19:03) gave the most credible chase, running 6:08/mi to finish 35 seconds behind Johnson — a respectable gap on a 5K course, but not enough to threaten the leader. Aaron Russell (19:58) held on for third at 6:26/mi, completing a podium that was clearly defined by the time the field hit the finish line. The real story behind the top three is the wall that followed: Morris Chow came home 4th in 22:17, a full 2:19 adrift of Russell, signaling that the podium trio operated in a different gear than the rest of the M35-39 field.

From there, the race settled into a competitive mid-pack battle. Dexter Combs (5th, 23:53), Melih Oztas (6th, 24:02), and Jon VanHorn (7th, 24:16) were separated by just 23 seconds across three spots, while Sunil Parekh (8th, 24:32), Nathan Felix (9th, 24:38), and Cian O'Hara (10th, 24:40) bunched even tighter — eight seconds covering three finishers. Further back, Chinmaya Dattathri and Juan A. Guzman Mercado both clocked 27:11 to share 16th and 17th, with 58 more finishers rounding out the field behind them.