San Francisco Marathon NB35-39: S X Dominates with a Blistering Early Move

• S X wins the NB35-39 race in 3:18:20 (7:34/mi), seizing the lead among women before the 6.52-mile mark and never looking back.
• Fastest early split: S X posted the fastest women's split on the 1.81M→6.52M segment — a decisive move that defined the race.
• Britt Crilley finishes 2nd in 4:49:48 (11:03/mi), recording the 9th-fastest women's split on the Garmin Hill Challenge→14.95M stretch.
• Jaime Lang rounds out the three-woman NB35-39 field in 5:02:56 (11:33/mi), clocking the 10th-fastest women's split on that same opening 1.81M→6.52M segment.

The NB35-39 women's race was S X's from early on. Starting the race in 2nd among women overall, she surged to the front by the first major checkpoint and posted the fastest women's split on the 1.81M→6.52M stretch — a 7:34/mi average pace that put daylight between her and the rest of the field. She held that women's lead through most of the race, ultimately finishing 2nd among women overall at the line in 3:18:20, a commanding performance in San Francisco's cool, humid morning air.

Britt Crilley ran a measured race through the city's hills, working her way up from 12th among women at the midpoint and showing real strength on the Garmin Hill Challenge segment — her 9th-fastest women's split there was a bright spot in a 4:49:48 effort. She crossed 2nd in the NB35-39 group, more than 90 minutes behind S X but a solid 13 minutes clear of third.

Jaime Lang, the youngest of the three at 35, completed the NB35-39 podium in 5:02:56 at an 11:33/mi pace. Notably, she also posted the 10th-fastest women's split on the 1.81M→6.52M segment — the same stretch where S X was untouchable — showing she came out with intention early, even if the overall gap to the front was wide. All three finishers crossed the line on a gray, breezy San Francisco morning that kept conditions as favorable as the city's hills allow.