William Briggs
ID 156377
Born : 1989 Cat. M35 Ultrarunner since 2010 USA
11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?USAUnited States
27,4%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 341; Σ finishers = 1 243. 341 / 1 243 × 100 = 27.43%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed11
Km — ultra races1 385 km
> 100 km4
> 160 km4
> 200 km1
Longest race500,0 km
19th Last Annual Vol-State 500K Endurance Run — 11/7/2024

Km per year (ultra races)

2022
2023
500
1 race
2024
2025
50
1 race
2026

Race types (share of distance)

Road41,3%
Trail58,7%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M2
Longest winning streak0
Current streak0

Records

50 km4h56'0050 mi8h05'17100 mi23h49'5512 h71,84 km

HISTORY

11 race(s)
DateRacePerf.Rk
2026
21.03 50km USA13th Badwater Cape Fear 50 km 4:56:00 h4
2024
11.07 500km USA19th Last Annual Vol-State 500K Endurance Run 4d 18:52:25 h5
2021
26.06 100mi USA48th Western States 100 Mile Endurance Run 23:49:55 h55
11.04 50km USA1st Le Tour De Orange County 50 km Race 5:05:12 h8
06.03 50km USA2nd The Ranch 50 km Race 5:19:27 h15
2019
02.11 100mi USA19th Rio Del Lago 100 Mile Endurance Run 23:51:35 h72
17.08 12h USA5th Julian Station Full Moon 12 Hour Run 71.841 km12
13.07 50km USA2nd The Peak 50k Race 7:04:16 h13
2014
19.07 100mi USA26th Vermont 100 Mile Endurance Race 25:33:51 h146
01.02 50km USA8th Cape Cod Frozen 50k Race 5:05:00 h2 🥈
2010
26.09 50mi USA17th Vermont 50 Miles Ultra Run 8:05:17 h20