Jack Tucker
Born : 1955 Cat. M70 Ultrarunner since 2010 USA
37
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
71,5%
Rank quotient ?This runner's calculation uses 37 eligible race(s): Σ(rank − 1) = 3 176; Σ finishers = 4 441. 3 176 / 4 441 × 100 = 71.52%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed37
Km — ultra races2 348 km
> 100 km2
> 160 km2
> 24h1
Longest race160,9 km

Km per year (ultra races)

311
4 races
2022
230
3 races
2023
184
3 races
2024
150
3 races
2025
100
2 races
2026

Race types (share of distance)

Road24,1%
Trail71,6%
Ult.Walk4,3%

HISTORY

37 race(s)
DateRacePerf.Rk
2026
02.05 50km USA11th Grayson Highlands 50km Race 9:59:24 h216
14.02 50km USA34th Sylamore Trail 50k Run 8:49:59 h76
2025
18.10 50km USA8th Big Hill Pond Walking Tall 8:51:30 h80
22.03 50km USA8th Big Buffalo 50 km Endurance Run 7:49:13 h19
15.02 50km USA33rd Sylamore Trail 50k Run 7:46:59 h52
2024
27.12 24h USA1st Moccasin 24 83.685 km22
14.07 50km USA26th Mt. Hood 50 km Trail Run 8:04:24 h112
17.02 50km USA32th Sylamore Trail 50k Run 9:03:19 h85
2023
23.06 100km USA3rd The Yeti 100 km Endurance Run-Washington 17:03:40 h23
11.03 50mi USA9th Antelope Canyon 50 Mile Race 15:23:44 h247
18.02 50km USA31th Sylamore Trail 50k Run 8:12:36 h76
2022
12.11 100mi USA9th Tunnel Hill 100 Mile Race 25:36:48 h78
17.09 50km USA9th Stanky Creek 50 km Trail Race 7:46:03 h16
28.05 50km USA1st Feel The Burn Trail Runs 8:56:05 h5
12.02 50km USA30th Sylamore Trail 50k Run 8:15:30 h92
2021
13.11 50mi USA8th Tunnel Hill 50 Mile Race 10:20:18 h120
23.10 50km USA4th Big Buffalo 50 km Endurance Run 7:18:45 h30
13.02 50km USA29th Sylamore Trail 50k Run 9:16:15 h97
2020
06.03 50mi USA3rd Chattanooga 50 Mile Trail Race 11:37:54 h68
15.02 50km USA28th Sylamore Trail 50k Run 8:45:29 h111
2019
19.10 50km USA2nd Big Hill Pond Walking Tall 8:54:44 h61
2018
10.11 100mi USA5th Tunnel Hill 100 Mile Race 27:37:18 h154
16.09 50km USA5th Stanky Creek 50 km Trail Race 7:55:01 h20
17.08 50mi USA14th Lean Horse Ultra-Marathon 50 Mile 11:56:38 h31
05.05 50km USA3rd Grayson Highlands 50km Race 7:20:14 h143
10.02 50km USA1st Cloudland Canyon 50 km Race 8:09:08 h115
2017
11.11 50mi USA4th Tunnel Hill 50 Mile Race 10:41:33 h124
22.07 50km USA26th Full Moon Run - Midnight 50K 7:43:11 h97
11.03 60km USA14th Land Between The Lakes 60 km Trail Run 9:34:32 h93
18.02 50km USA25th Sylamore Trail 50k Run 8:17:58 h101
2016
20.02 50km USA24th Sylamore Trail 50k Run 7:34:40 h79
2015
25.07 50km USA24th Full Moon Run - Midnight 50K 7:51:54 h101
2013
01.06 50km USA1st Music City Trail Ultra 9:53:54 h52
02.03 50mi USA32th Carl Touchstone Memorial Mississippi Trail 50 Mile 11:17:19 h57
2012
18.02 50km USA20th Sylamore Trail 50k Run 7:07:28 h105
2011
19.02 50km USA19th Sylamore Trail 50k Run 7:59:29 h133
2010
20.02 50km USA18th Sylamore Trail 50k Run 8:37:19 h122