Michal Kawecki
ID 329237
Born : 1979 Cat. M45 Ultrarunner since 2010 USA
38
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
1
Countries visited ?USAUnited States
19,7%
Rank quotient ?This runner's calculation uses 38 eligible race(s): Σ(rank − 1) = 1 309; Σ finishers = 6 654. 1 309 / 6 654 × 100 = 19.67%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed38
Km — ultra races3 170 km
> 100 km13
> 160 km5
Longest race160,9 km
9th Grindstone 100 Mile — 6/10/2017

Km per year (ultra races)

55
1 race
2022
2023
2024
2025
60
1 race
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak1
Current streak0

Records

50 km4h58'0850 mi10h31'45100 mi27h22'58

HISTORY

38 race(s)
DateRacePerf.Rk
2026
20.06 37mi USA29th Rachel Carson Trail Challenge 9:18:56 h52
2022
18.06 34mi USA25th Rachel Carson Trail Challenge 7:53:56 h21
2021
24.06 34mi USA24th Rachel Carson Trail Challenge 8:35:35 h27
2019
31.08 71.1mi USA17th The Ring 71-mile Run 21:31:00 h9
22.06 34mi USA23th Rachel Carson Trail Challenge 7:37:08 h16
2017
06.10 100mi USA9th Grindstone 100 Mile 27:22:58 h70
02.09 71.1mi USA15th The Ring 71-mile Run 20:11:00 h13
24.06 34mi USA21th Rachel Carson Trail Challenge 8:02:41 h14
06.05 100mi USA23rd Massanutten Mountain Trails 100 Mile 29:47:43 h50
25.02 71mi USA12th The Reverse Ring 71-mile Run 22:02:00 h16
2016
03.09 71.1mi USA14th The Ring 71-mile Run 22:58:00 h13
11.06 70.5mi USA37th Laurel Highlands 70 Mile Ultra 18:38:54 h39
2015
29.08 50mi USA11th Baker Trail 50 Mile UltraChallenge 10:31:45 h8
01.08 100mi USA28th Angeles Crest 100 Mile 31:11:29 h66
20.06 34mi USA19th Rachel Carson Trail Challenge 8:13:16 h13
13.06 70.5mi USA36th Laurel Highlands 70 Mile Ultra 16:25:25 h23
09.05 50mi USA5th Glacier Ridge Trail 50 Mile Ultramarathon 10:51:56 h14
2014
01.11 50km USA5th Marshall Mangler 50K Trail Run 6:19:30 h13
11.10 100mi USA6th Oil Creek 100 Miles Trail Run 28:27:16 h49
23.08 50mi USA10th Baker Trail 50 Mile UltraChallenge 10:38:33 h6
14.06 70.5mi USA35th Laurel Highlands 70 Mile Ultra 16:02:39 h31
12.04 50mi USA4th Glacier Ridge Trail 50 Mile Ultramarathon 11:07:11 h20
2013
10.11 50km USA4th Marshall Mangler 50K Trail Run 5:51:08 h18
07.09 50km USA29th Groundhog Fall 50K 5:33:20 h17
24.08 50mi USA9th Baker Trail 50 Mile UltraChallenge 10:47:53 h19
22.06 34mi USA17th Rachel Carson Trail Challenge 7:59:01 h8
08.06 70.5mi USA34th Laurel Highlands 70 Mile Ultra 18:09:07 h43
28.04 50km USA4th Ironmasters Challenge 50k Ultra 6:47:30 h30
03.02 50km USA6th Green Jewel 50K 4:58:08 h51
2012
08.09 50km USA28th Groundhog Fall 50K 5:52:34 h30
28.07 100mi USA6th Burning River 100 Mile Endurance Run 29:03:03 h173
23.06 34mi USA16th Rachel Carson Trail Challenge 9:54:12 h84
03.03 50km USA8th Seneca Creek Greenway Trail 50k 5:42:48 h43
2011
13.11 50km USA2nd Marshall Mangler 50K Trail Run 5:11:40 h8
29.10 50km USA2nd Fuzzy Fandango Trail Races 5:33:29 h1 🏆
10.09 50km USA27th Groundhog Fall 50K 5:28:18 h10
18.06 34mi USA15th Rachel Carson Trail Challenge 8:40:46 h13
2010
19.06 34mi USA14th Rachel Carson Trail Challenge 12:46:09 h216