Women's Half Marathon: McNulty Dominates from the Front in Napa

• Abbie McNulty won the women's race in 1:13:27 (5:36/mi), leading wire-to-wire and posting the fastest women's split on the 3.1M–6.9M segment.
• Jenny Grimshaw held second the entire way, finishing in 1:15:14 — 1:47 back — while Sierra Castaneda (1:17:12) overtook Sara Passani (1:17:29) in the final stretch to claim the last podium spot.
• Bridget Blum was the race's biggest mover in the top 10, climbing from 7th to 5th (1:18:43) on the strength of the 4th-fastest women's split on the back half.
• Rebecca Paten, 44, cracked the top 15 in 1:22:30 (6:18/mi) in a field dominated by athletes in their late 20s and early 30s.

Under cool, breezy Napa conditions — 47°F and a 12 mph wind — Abbie McNulty of San Francisco ran a commanding wire-to-wire victory, holding the top spot among women from the opening miles to the finish tape. Her 5:36/mi average tells the story clearly: she was in a different gear. The middle segment (3.1M–6.9M) was where she separated herself most visibly, logging the fastest women's split on that stretch. Jenny Grimshaw, also from San Francisco, matched the structure of McNulty's race almost perfectly — sitting second from start to finish — but couldn't close a gap that only widened, ending 1:47 behind in 1:15:14.

The real drama unfolded just off the podium. Sierra Castaneda sat fourth through the first two checkpoints before making her move, overtaking Sara Passani in the closing miles to finish third in 1:17:12 (5:53/mi). Passani, who had held third through most of the race, slipped to fourth at 1:17:29 — a 17-second margin that reflected a genuine shift in momentum. Both women posted among the four fastest middle-segment splits in the women's field, making that stretch the race's decisive battleground.

Further back, Bridget Blum put together the most eye-catching charge of the top 10, moving up from seventh place to fifth with the 4th-fastest women's split on the 6.9M-to-finish leg, crossing in 1:18:43. Jocelyn Todd (1:19:49), Abby Hong (1:19:55), and Mary Fuller (1:20:03) filled out the next three spots in a tight cluster separated by just 14 seconds across three finishers. In a women's field of 1,478, the depth was real — and the front of it was fast.