Eugene Defronzo
Born : 1936 Cat. M90 Ultrarunner since 2001 USA
50
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
90,2%
Rank quotient ?This runner's calculation uses 84 eligible race(s): Σ(rank − 1) = 8 703; Σ finishers = 9 646. 8 703 / 9 646 × 100 = 90.22%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed84
Km — ultra races4 511 km
> 24h7
Longest race80,5 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road38,8%
Trail61,2%

Wins & podiums (ultra)

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

HISTORY

84 race(s)
DateRacePerf.Rk
2018
18.08 50km USA8th Run-de-Vous 50 km Endurance Run 11:38:25 h15
2017
25.02 12h USA2nd Riverbank One Day - 12hrs run 46.081 km14
2016
13.08 12h USA4th Hamster Endurance Runs 12 Hour Run 46.027 km24
2015
07.11 50km USA8th Nashville 50 km Ultra Marathon 10:23:05 h61
24.10 12h USA7th 12H The Hard Way 47.894 km12
16.05 12h USA7th 3 Days at the Fair 12 Hour Race 46.670 km16
26.04 50km USA41th Lake Waramaug 50km Ultra Marathon 10:19:27 h70
02.01 24h USA30th Across the Years, 24h 54.062 km128
2014
08.11 12h USA2nd NJ One Day 12 Hour Race 49.889 km14
25.07 12h USA18th Ultra Around The Lake 12h 47.301 km59
19.07 24h USA6th Lone Ranger 24 hr Urban Ultra 54.460 km136
26.04 24h USA11th Virginia 24 Hour Run for Cancer 54.315 km139
2013
29.12 24h USA29th Across the Years, 24h 54.062 km157
02.11 50km USA6th Nashville 50 km Ultra Marathon 9:28:18 h81
26.07 12h USA17th Around The Lake Ultra 12h 52.400 km47
21.04 50km USA39th Lake Waramaug 50km Ultra Marathon 9:16:11 h49
23.03 50km USA4th New Jersey Ultra Festival 50 km Race 9:23:10 h58
02.03 50km USA32th Carl Touchstone Memorial Mississippi Trail 50 km 9:35:00 h83
2012
29.12 24h USA29th Across the Years, 24h 50.684 km133
03.11 60km USA5th Nashville 60 km Ultra Marathon 11:30:09 h10
20.10 12h USA3rd St. Pats 12 Hour Race 48.779 km5
27.07 12h USA16th Around The Lake Ultra 12h 47.298 km70
14.07 24h USA4th Lone Ranger 24 hr Ultra-Marathon 68.043 km182
02.06 12h USA23rd FANS 12 Hour Run 53.333 km42
29.04 50km USA38th Lake Waramaug 50km Ultra Marathon 9:22:08 h62
21.04 24h USA9th Virginia 24 Hour Run for Cancer 60.350 km83
24.03 50km USA3rd New Jersey Ultra Festival 50 km Race 10:07:57 h61
16.03 12h USA3rd Howard Aslinger 12 Hour Endurance Run 50.678 km25
2011
31.12 12h USA2nd New Years One Day 12 Hour Run 46.102 km45
15.10 60km USA4th Nashville 60 km Ultra Marathon 10:28:22 h12
29.07 12h USA15th Around The Lake Ultra 12h 47.298 km46
29.05 50km USA6th Trail Festival at Pineland Farms 9:40:29 h140
23.04 50km USA37th Lake Waramaug 50km Ultra Marathon 8:37:37 h62
19.03 50km USA2nd New Jersey Ultra Festival 50 km Race 8:39:51 h68
05.03 50km USA30th Carl Touchstone Memorial Mississippi Trail 50 km 9:54:50 h88
2010
31.12 12h USA1st New Years One Day 12 Hour Run 51.225 km19
26.09 50km USA17th Vermont 50 km Ultra Run 11:57:08 h188
18.09 32mi USA16th Bohemian Alps 50 km Ultramarathon 10:00:55 h26
11.09 50km USA4th Bartlett Park Ultras 50K 11:02:45 h38
30.07 12h USA14th Around The Lake Ultra 12h 52.400 km48
05.06 12h USA21st FANS 12 Hour Run 53.317 km33
06.03 50km USA29th Carl Touchstone Memorial Mississippi Trail 50 km 9:29:15 h65
2009
17.10 50km USA2nd Nashville 50 km Ultra Marathon 9:29:09 h35
22.08 50km USA4th Lean Horse Ultra-Marathon 50 km 12:21:18 h19
2008
18.10 50km USA17th Maine Track Club Ultra 50 km 8:07:07 h18
28.09 50km USA15th Vermont 50 km Ultra Run 10:52:28 h103
25.07 12h USA12th Around The Lake Ultra 12h 50.855 km19
2007
29.12 50km USA11th Huff 50K Trail Run 9:02:39 h151
08.12 50km USA18th Sunmart Texas Trails 50 km 9:27:21 h495
14.10 50km USA21st Glacial Trail 50 km Race 9:45:20 h98
30.09 50km USA14th Vermont 50 km Ultra Run 9:23:51 h113
25.08 50mi USA3rd Lean Horse Ultra-Marathon 50 Mile 14:13:00 h37
26.05 50mi USA6th Old Dominion Memorial Day Race 50 Mile 13:34:26 h32
12.05 50km USA26th Ice Age Trail 50 km Run 8:27:45 h123
31.03 50mi USA13th Umstead Endurance Run 50 Miles 13:29:49 h91
10.03 50km USA26th Carl Touchstone Memorial Mississippi Trail 50 km 9:02:16 h61
14.01 38.5mi USA2nd The Ghost Town 38.5 11:53:24 h39
2006
18.11 50mi USA44th JFK 50 Mile 13:18:02 h954
08.10 50km USA20th Glacial Trail 50 km Race 9:20:17 h103
29.07 50km USA8th Mt. Hood 50 km Trail Run 9:25:12 h97
23.04 50km USA32th Lake Waramaug 50km Ultra Marathon 7:57:13 h2 🥈
08.04 50mi USA12th Umstead Endurance Run 50 Miles 13:17:39 h73
25.02 50km USA2nd 50km Silver Comet Ultra Run 6:57:37 h41
04.02 50km USA28th Jed Smith Ultra Classic - 50 km Race 7:02:00 h64
2005
03.12 50km USA16th Sunmart Texas Trails 50 km 7:38:42 h445
26.11 50km USA7th Big Dog Ultra Trail Run 8:45:00 h15
19.11 50mi USA43rd JFK 50 Mile 13:43:03 h942
22.10 50km USA11th The Breakers Marathon - Nifty Fifty Kilometers 7:06:00 h13
09.10 50km USA19th Glacial Trail 50 km Race 9:51:00 h87
02.04 50mi USA11th Umstead Endurance Run 50 Miles 13:41:51 h93
12.03 50km USA25th Carl Touchstone Memorial Mississippi Trail 50 km 8:52:48 h71
2004
04.12 50km USA15th Sunmart Texas Trails 50 km 6:57:45 h423
30.10 50km USA5th Chicago Lakefront Fall 50km Race 7:13:31 h118
25.04 50km USA30th Lake Waramaug 50km Ultra Marathon 7:15:40 h20
03.04 50mi USA10th Umstead Endurance Run 50 Miles 13:23:20 h84
10.01 50km USA5th Salem Lakeshore Frosty Fifty 7:08:00 h57
2003
16.11 50km USA9th The Breakers Marathon - Nifty Fifty Kilometers 6:50:00 h30
11.01 50km USA4th Salem Lakeshore Frosty Fifty 6:53:31 h62
2002
30.11 50km USA4th Big Dog Ultra Trail Run 8:08:00 h17
17.11 50km USA8th The Breakers Marathon - Nifty Fifty Kilometers 6:50:43 h20
10.08 50km USA4th Mt. Hood 50 km Trail Run 8:58:38 h40
18.05 50km USA4th Capon Valley 50K Run 7:36:26 h153
09.02 50km USA24th Jed Smith Ultra Classic - 50 km Race 6:55:30 h65
2001
01.12 50km USA12th Sunmart Texas Trails 50 km 7:46:41 h550