F1-14 · HALF MARATHON

Girls F1-14: Riley Beckerman Runs Away With It at Long Beach

F1-14WomenMen
By MyRace AIOctober 5, 2025Official site ↗
  • Riley Beckerman, 13, wins in 1:56:13 (8:52/mi) — nearly two minutes clear of runner-up Claire Morrissey's 1:57:59.
  • Tightest battle of the day: Grace Coutsoftides (4th, 2:07:28) and Siena Therriault (5th, 2:07:44) were separated by just 16 seconds — but both closed hard, each posting strong final-segment splits to move up dozens of places among the women.
  • Quinn Boatright (3rd, 2:05:35) held off the chasing pack by over a minute and a half, running 9:35/mi across 13.1 miles at age 13.
  • 14 finishers completed the F1-14 half marathon, ranging from Beckerman's 1:56:13 to Joanna Megallon's 3:52:35.

Riley Beckerman, just 13 years old from Aliso Viejo, owned this race from start to finish. She crossed in 1:56:13 at an 8:52/mi clip — the only finisher in the F1-14 field to break two hours. Claire Morrissey of Santa Ana was the closest challenger, running a steady 9:00/mi to finish in 1:57:59, but Beckerman's lead was never seriously threatened. What's worth noting is how that gap was built: Morrissey's strongest segment was the middle stretch (5.5M to 10.8M), where she posted the 391st-fastest women's split in the field and climbed from 602nd to 455th among the women — a genuine surge. Beckerman, meanwhile, held her composure through the final 10.8M-to-finish leg to seal it.

Quinn Boatright, another 13-year-old (Rancho Santa Margarita), rounded out the podium in 2:05:35, finishing comfortably ahead of a fierce battle behind her. Grace Coutsoftides (Ladera Ranch, 14) and Siena Therriault (Carlsbad, 13) ran nearly the entire race in lockstep — Coutsoftides finished 4th in 2:07:28, Therriault 5th in 2:07:44. Both athletes made significant moves in the final leg: Coutsoftides posted the 466th-fastest women's split on that stretch, Therriault the 487th, and both climbed well over 100 spots in the women's field during that closing push. The 16-second gap between them was the result of two athletes digging deep on the same stretch of Long Beach shoreline.

Sofia Felix (6th, 2:11:09), Ava Hendricks (7th, 2:13:57), and Isabella Juarez (8th, 2:15:18) each completed the half in under 2:16, with the remaining six finishers — from Jaylene Moscoso's 2:24:46 through Joanna Megallon's 3:52:35 — all earning their medals on a cool, clear October morning in Long Beach.

The course

Course map — Long Beach Marathon
62 ft range ≈ 5 story building (12 ft each)×572 ft-8 ft06.5 mi13 mi
12.9 miles · 545 ft elevation gain · 64 ft max elevation
The course · start finish · © Mapbox © OpenStreetMap
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AI recap · generated from official results

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