San Francisco Half Marathon 2023: Tony Riley Rules the M55-59 Field

• Tony Riley wins in 1:30:14 (6:53/mi), a 2:20 margin over runner-up Anthony Rodio's 1:32:34.
• Francisco Guzman takes 3rd in 1:36:57, with 4th-place Thomas Monroe Jr finishing in 1:39:25 — a 2:28 gap back.
• Tight battle for 7th–9th: Oreste Donzella (1:50:37), Ailin Miao (1:50:59), and Tom Burchell (1:52:12) finished within 95 seconds of each other.
• 74 men completed the M55-59 race, with the top 20 all breaking 2:01 on a cool, humid San Francisco morning.

Tony Riley made the M55-59 race his own from the opening miles. Running at a 6:53/mi clip, the San Francisco local crossed in 1:30:14 — a commanding performance in a field of 74. His split data tells a story of a man running his own race: his 5M→10.9M segment ranked 76th among all women in the field, a useful benchmark showing genuine mid-race pace. He faded slightly in the gender standings as the race wore on, but the finish line told the only number that mattered.

Anthony Rodio of Burlingame was the closest challenger, finishing in 1:32:34 at 7:04/mi — a noticeably harder pace than Riley's, yet still 2:20 in arrears. Rodio actually moved up in the women's standings from 100th to 93rd through the middle miles before settling back to 97th by the finish, suggesting a strong second-quarter surge that ultimately wasn't enough to close the gap on the leader. Francisco Guzman rounded out the podium in 1:36:57 (7:24/mi), his best split coming early — he ranked 123rd among women on the 2.95M→5M segment — before gradually fading through the second half to finish 3rd.

Thomas Monroe Jr held 4th in 1:39:25, completing the top four well clear of 5th-place Xuecheng Jin, who clocked 1:45:20 at 8:02/mi. The middle of the field produced some of the race's most competitive racing: Oreste Donzella (7th, 1:50:37), Ailin Miao (8th, 1:50:59), and Tom Burchell (9th, 1:52:12) were locked in a tight three-way battle across the final miles, separated by just 95 seconds at the line. Allan Holder, making the trip from Ottawa, rounded out the top ten in 1:52:52 — a long way from home for a solid result on the hilly streets of San Francisco.