Michael Zec
ID 130372
Born : 1977 Cat. M45 Ultrarunner since 2009 USA
36
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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 ?CROCroatiaUSAUnited States
37,9%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 2 756; Σ finishers = 7 264. 2 756 / 7 264 × 100 = 37.94%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races3 080 km
> 100 km7
> 160 km7
> 24h1
> 48h1
Longest race168,0 km
13th Istria 100 by UTMB - 168km — 11/4/2025

Km per year (ultra races)

2022
2023
100
1 race
2024
168
1 race
2025
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M4
Longest winning streak0
Current streak0

Records

50 km5h35'44100 km11h05'4550 mi9h36'49100 mi21h33'17

HISTORY

36 race(s)
DateRacePerf.Rk
2025
11.04 168km CRO13th Istria 100 by UTMB - 168km 38:31:35 h214
2024
19.07 100km USA16th Vermont 100 km Endurance Race 14:42:05 h37
2019
23.11 50mi USA57th JFK 50 Mile 10:50:04 h520
20.07 100mi USA31th Vermont 100 Mile Endurance Race 26:17:12 h59
01.06 88km USA5th INFINITUS 2019 - 88k Ultramarathon 13:17:10 h5
04.05 50km USA12th Endurance Challenge - New York Trail 50 km 6:47:33 h115
2018
21.07 100mi USA30th Vermont 100 Mile Endurance Race 23:23:17 h119
2017
22.10 50km USA10th Bimblers Bluff 50k 6:23:28 h25
15.07 100mi USA29th Vermont 100 Mile Endurance Race 23:12:19 h103
27.05 88km USA3rd INFINITUS 2017 - 88k Ultramarathon 12:37:52 h3 🥉
13.05 50km USA10th Endurance Challenge - New York Trail 50 km 6:35:59 h134
2016
18.06 100km USA5th The Great New York 100 km Running Exposition 11:05:45 h5
28.05 88km USA2nd INFINITUS 2016 - 88k Ultramarathon 16:30:00 h10
30.04 50km USA9th Endurance Challenge - New York Trail 50 km 6:08:06 h125
2015
15.08 50km USA4th Wildcat Ridge Romp 50 km 6:44:08 h10
18.07 100mi USA27th Vermont 100 Mile Endurance Race 21:33:17 h48
02.05 50km USA8th Endurance Challenge - New York Trail 50 km 6:07:35 h103
2014
19.10 50km USA7th Bimblers Bluff 50k 5:35:44 h14
19.07 100mi USA26th Vermont 100 Mile Endurance Race 23:00:22 h98
31.05 50mi USA6th Peak Ultra 50 Mile Endurance Run 13:03:52 h15
03.05 50km USA7th Endurance Challenge - New York Trail 50 km 6:24:29 h81
2013
20.07 100mi USA25th Vermont 100 Mile Endurance Race 27:27:15 h154
04.05 50km USA6th Endurance Challenge - New York Trail 50 km 6:46:56 h99
2012
21.07 100km USA5th Vermont 100 km Endurance Race 11:54:09 h3 🥉
02.06 50mi USA5th Endurance Challenge - Washington D.C. Trail 50 Miles 9:36:49 h70
05.05 50km USA5th Endurance Challenge - New York Trail 50 km 6:19:12 h65
03.05 72h USA4th Peak Ultra 30/50/100/150/200 Endurance Runs 64.373 km48
2011
03.12 50mi USA5th Endurance Challenge - California Trail 50 Mile 11:08:25 h186
23.10 50km USA4th Bimblers Bluff 50k 6:07:24 h34
04.06 53mi USA3rd Peak Ultra 53 Mile Endurance Run 13:26:00 h17
07.05 50km USA4th Endurance Challenge - New York Trail 50 km 6:57:21 h88
2010
24.10 50km USA3rd Bimblers Bluff 50k 6:38:15 h41
08.05 50km USA3rd Endurance Challenge - New York Trail 50 km 6:35:46 h61
06.05 50mi USA2nd Peak Ultra 50 Mile Endurance Run 14:09:38 h18
2009
25.10 50km USA2nd Bimblers Bluff 50k 6:29:52 h24
06.06 50mi USA1st Pittsfield Peaks 50Miles Run 14:48:08 h41