Will Guzick
ID 169609
Born : 1988 Cat. M35 Ultrarunner since 2010 USA
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
2
Countries visited ?ITAItalyUSAUnited States
17,2%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 773; Σ finishers = 4 501. 773 / 4 501 × 100 = 17.17%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races2 047 km
> 100 km8
> 160 km6
Longest race160,9 km
33rd Bighorn Mountain Wild & Scenic 100 Mile Trail Run — 21/6/2025

Km per year (ultra races)

270
3 races
2022
308
3 races
2023
206
2 races
2024
314
2 races
2025
100
1 race
2026

Race types (share of distance)

Road8,8%
Trail91,2%

Wins & podiums (ultra)

🏆 Win4
🏆 Win M4
🏅 Top 37
🏅 Top 3 M7
Longest winning streak3
Current streak0

Records

50 km3h43'08100 km11h04'0950 mi6h59'37100 mi17h15'1812 h65,66 km

HISTORY

22 race(s)
DateRacePerf.Rk
2026
09.05 100km USA43rd Quicksilver 100 km Endurance Run 11:04:09 h9
2025
25.08 153km ITA15ème Sur les Traces des Ducs de Savoie 33:03:50 h365
21.06 100mi USA33rd Bighorn Mountain Wild & Scenic 100 Mile Trail Run 24:55:09 h25
2024
30.11 28mi USA39th Quad Dipsea Trail Run 4:42:08 h9
21.09 100mi USA12th Mountain Lakes 100 17:15:18 h1 🏆
2023
29.09 100mi USA25th The Bear 100 Mile Endurance Run 24:55:11 h31
17.06 46km USA8th The Broken Arrow Skyrace 6:13:00 h112
29.04 101.4km USA10th The Canyons Endurance 100 km Run 13:17:29 h66
2022
10.09 100mi USA11th Idaho Mountain Trail Ultra Festival (IMTUF 100) 29:44:32 h21
27.08 38mi USA9th Telluride Mountain Run 11:14:00 h21
18.06 48km USA7th The Broken Arrow Skyrace 6:27:50 h93
2021
18.12 50km USA10th Woodside Ramble 50K - Winter 4:27:05 h4
17.09 100mi USA15th Run Rabbit Run 100 Mile UltraMarathon - Tortoises Run 24:05:34 h2 🥈
2019
12.10 50mi USA17th Can Lake 50 Mile Ultra 6:59:37 h2 🥈
2017
11.11 50km USA6th Mt. Tam Trail Run 4:49:16 h2 🥈
2014
23.08 50km USA23rd Bulldog 50k Ultra Run 3:43:08 h1 🏆
2012
02.09 50km USA2nd The September11th 50K 3:59:13 h1 🏆
2011
11.09 50km USA1st The September11th 50K 4:07:00 h1 🏆
23.07 12h USA5th 12 hour Running with the Devil 65.661 km5
25.06 100mi USA1st Black Hills 100 Mile Run 29:38:49 h13
23.04 50km USA1st TARC Spring Classic 50 km 4:40:31 h4
2010
18.12 50mi USA3rd Lookout Mountain 50 Mile Race 8:23:56 h7