Zach Merrin
ID 791568
Born : 1985 Cat. M40 Ultrarunner since 2013 USA
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
3,2%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 105; Σ finishers = 3 308. 105 / 3 308 × 100 = 3.17%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 949 km
> 100 km7
> 160 km7
Longest race160,9 km
9th Canal Corridor 100 Mile Endurance Run — 11/10/2025

Km per year (ultra races)

211
3 races
2022
241
2 races
2023
2024
322
2 races
2025
100
1 race
2026

Race types (share of distance)

Road10,9%
Trail89,1%

Wins & podiums (ultra)

🏆 Win8
🏆 Win M8
🏅 Top 317
🏅 Top 3 M17
Longest winning streak2
Current streak0

Records

50 km3h35'03100 km12h59'5450 mi6h17'20100 mi13h25'56

HISTORY

32 race(s)
DateRacePerf.Rk
2026
30.05 100km USA5th Rabid Raccoon 100 km 12:59:54 h22
2025
11.10 100mi USA9th Canal Corridor 100 Mile Endurance Run 16:54:20 h4
26.07 100mi USA19th Burning River 100 Mile Endurance Run 21:38:40 h6
2023
04.06 50mi USA34th Mohican Trail 50 Mile 8:11:36 h3 🥉
04.03 100mi USA10th Jackpot Ultra Running Festival 100 Mile Race - US Championship 14:48:59 h2 🥈
2022
30.07 50mi USA16th Burning River 50 Mile Endurance Run 8:01:01 h4
04.06 50mi USA33th Mohican Trail 50 Mile 8:43:53 h4
05.03 50km USA6th Super Bull Trail Championchips 50km 5:35:05 h10
2020
14.11 100mi USA7th Tunnel Hill 100 Mile Race 13:25:56 h4
07.03 50km USA4th Super Bull Trail Championchips 50km 4:13:27 h1 🏆
2019
04.10 100mi USA11th Grindstone 100 Mile 20:50:14 h6
15.09 50km USA7th Oak Openings Stampede 50k 3:35:03 h1 🏆
08.06 50mi USA4th Eagle Up Ultra 50 Mile 6:44:36 h1 🏆
06.04 50mi USA5th Ozarks Foothills 50M 7:23:00 h2 🥈
09.03 50km USA3rd Super Bull Trail Championchips 50km 4:11:34 h2 🥈
2018
10.11 50mi USA1st Shawnee 50 Mile Trail Run 10:50:26 h5
13.10 100mi USA6th Indiana Trail 100 Mile 16:01:16 h1 🏆
12.05 100km USA8th Ultra Race of Champions (UROC) 100K 14:03:42 h14
08.04 50mi USA24th Umstead Endurance Run 50 Miles 6:55:29 h1 🏆
17.03 50km USA6th Buzzard Day 50 km Trail Race 4:21:08 h3 🥉
03.03 50km USA2nd Super Bull Trail Championchips 50km 4:26:59 h2 🥈
03.02 50mi USA5th Sean O'Brien 50 Mile Trail Race 9:12:28 h3 🥉
2017
18.11 50mi USA55th JFK 50 Mile 6:17:20 h5
08.07 100mi USA1st Canal Corridor 100 Mile Endurance Run 15:17:34 h1 🏆
03.06 50mi USA5th Cayuga Trails 50 Mile Race 7:52:40 h4
04.03 50km USA1st Super Bull Trail Championchips 50km 4:18:24 h2 🥈
2016
29.10 52.4mi USA9th Run With Scissors Double Marathon 7:36:46 h1 🏆
18.06 50mi USA27th Mohican Trail 50 Mile 7:55:48 h5
2015
31.10 52.4mi USA8th Run With Scissors Double Marathon 8:26:57 h2 🥈
2014
26.10 52.4mi USA7th Run With Scissors Double Marathon 8:14:57 h1 🏆
30.03 50km USA7th Fools 50K Trail Run 5:18:12 h6
2013
27.10 52.4mi USA6th Run With Scissors Double Marathon 9:15:54 h9