Half Marathon NB35-39: Butler Runs Unopposed — But the Numbers Tell a Real Story

• Nick Butler, 36 (Oakland, CA) — sole finisher in NB35-39, crossing in 1:52:37 at an 8:35/mi average.
• Climbed to 2nd among men by the 2.95-mile mark and held that position through the finish.
• Fastest split in the men's field on the 2.95M→5M segment — the strongest stretch of his race.

Nick Butler was the only finisher in NB35-39 on a cool, humid San Francisco morning — 57°F with heavy overcast and near-still air — but running unopposed doesn't mean running without a story. His 1:52:37 at 8:35/mi tells one on its own.

The more interesting thread runs through the men's standings. Butler moved from 3rd to 2nd among men within the first 2.95 miles and locked that position in for good, never relinquishing it through the finish. That kind of early surge and sustained hold signals a well-paced effort, not a lucky gap.

The standout moment came on the 2.95M→5M stretch, where Butler posted the fastest split in the men's field on that segment. In a race with no one to chase in his own group, he was still pushing hard enough to outrun the broader men's field on one of the race's key early miles — which gives his solo 1:52:37 some genuine context.

With no competition in NB35-39, the win was automatic — but the effort behind it was anything but.