San Francisco Half Marathon 2023: Olivia Lennon Dominates F45-49 in a Field of 94

• Olivia Lennon wins in 1:32:17 (7:02/mi), finishing more than 13 minutes clear of 2nd place — the largest gap on the F45-49 podium.
• Hongtao Liu's closing surge produced the 65th-fastest women's split on the 10.9M→Finish stretch, helping her climb from 101st among women at the opening checkpoint to 75th at the line — a gain of 26 places in the women's field.
• Jill McCarthy mirrored that late charge, posting the 101st-fastest women's split on the same closing stretch to recover from 123rd among women at mid-race to 102nd at the finish.
• Marianne Deschatelets made the biggest overall charge of the podium chasers, moving from 246th among women at the first checkpoint all the way to 149th by the finish — a swing of nearly 100 places.

Olivia Lennon, 46, from Brisbane, ran a race in a completely different gear from the rest of the F45-49 field. Her 7:02/mi average held up across the full course, and she was moving well enough in the second half to post the 16th-fastest women's split on that stretch — evidence of a controlled, confident effort rather than a fade. The 13-minute-plus cushion she built over Hongtao Liu tells the whole story of how dominant her afternoon was on the San Francisco streets.

Behind Lennon, the battle for 2nd through 5th was its own compelling race. Liu (1:45:45, 8:04/mi) and McCarthy (1:48:59, 8:19/mi) both ran negative-style second halves, each climbing steadily through the women's field after quiet opening miles. Liu's late-race acceleration was the sharper of the two, and she held 2nd comfortably. Deschatelets (1:51:41, 8:31/mi) and Glenda Polo (1:53:09, 8:38/mi) rounded out the top five, both making significant moves through the women's field in the back half, with Polo's 110th-fastest women's closing split underscoring a strong finish.

The depth of the 94-woman field was real: nine runners finished between 1:53 and 1:56, with just 79 seconds separating 6th-place Lisa Ingarfield (1:53:46) from 11th-place Mimi St. Gelais (1:55:32). On a cool, overcast San Francisco morning with light wind, conditions were about as good as the Bay can offer — and the F45-49 group made full use of them.