Tony Mazur
Born : 1954 Cat. M70 Ultrarunner since 1998 USA
33
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 ?CANCanadaUSAUnited States
63,8%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 2 349; Σ finishers = 3 679. 2 349 / 3 679 × 100 = 63.85%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races3 175 km
> 100 km11
> 160 km11
Longest race160,9 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road2,5%
Trail97,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

HISTORY

33 race(s)
DateRacePerf.Rk
2017
26.08 50mi USA18th North Country Trail Run 50 Mile 13:47:49 h117
30.04 50km USA6th The Trail Marathon 50K 7:41:35 h124
2016
12.11 50mi USA3rd Tunnel Hill 50 Mile Race 13:02:47 h274
2015
13.09 50mi USA7th Run Woodstock - Peace Love and 50 Miles 12:39:14 h50
26.04 50km USA4th The Trail Marathon 50K 7:44:33 h102
2014
20.09 50km USA12th Dances with Dirt - Hell 50K Ultra 8:39:32 h99
2013
15.09 50km USA1st Oak Openings Stampede 50k 6:10:46 h25
28.04 50km USA2nd The Trail Marathon 50K 7:07:43 h103
2011
24.09 50km USA9th Dances with Dirt - Hell 50K Ultra 7:43:35 h104
2009
06.06 100mi USA14th Kettle Moraine 100 Mile Endurance Run 29:17:08 h88
2008
09.08 100mi USA2nd Viaduct Trail Ultramarathon 100 Mile 29:11:20 h3 🥉
11.04 100mi USA8th McNaughton 100 Mile Ultra Race 2d 01:53:50 h22
2007
15.09 50mi USA8th North Country Trail Run 50 Mile 10:53:21 h55
2006
30.12 50km USA10th Huff 50K Trail Run 6:14:40 h128
25.10 50km USA10th Kentucky Ultra Trail Sojourn 50 km 8:11:30 h44
2005
18.12 50km USA9th Huff 50K Trail Run 6:24:32 h88
04.06 100mi USA26th Old Dominion 100 Mile Endurance Run 27:22:52 h11
2004
11.09 100mi USA14th Superior Fall Trail Races 100 Mile 35:39:40 h18
2003
06.09 100mi CAN8th Haliburton Forest 100 Mile Race 27:17:24 h9
2002
15.06 100mi USA13th Mohican Trail 100 Mile 26:22:11 h35
2001
29.12 50km USA5th Huff 50K Trail Run 5:50:46 h96
21.07 100mi USA13th Vermont 100 Mile Endurance Race 25:40:26 h110
26.05 50km CAN9th Sulphur Springs Trail Run 50km 5:29:24 h19
2000
09.09 50mi USA5th Dances with Dirt - Hell 50M Ultra 11:01:01 h17
30.07 100mi USA4th Mount Rushmore Trail 100 Mile Run 35:19:49 h20
02.06 100mi USA5th Kettle Moraine 100 Mile Endurance Run 25:20:20 h38
13.05 50mi USA19th Ice Age Trail 50 Mile Run 9:10:07 h115
1999
18.12 50km USA3rd Huff 50K Trail Run 5:18:40 h54
06.11 50mi USA7th OPSF Ultra 50 Mile Race 9:54:00 h21
11.09 50mi USA4th Dances with Dirt - Hell 50M Ultra 10:34:59 h22
19.06 100mi USA10th Mohican Trail 100 Mile 26:49:37 h40
08.05 50mi USA18th Ice Age Trail 50 Mile Run 9:58:20 h189
1998
16.05 50mi USA17th Ice Age Trail 50 Mile Run 9:58:22 h142