Karl Studtmann
ID 368880
Born : 1963 Cat. M60 Ultrarunner since 2009 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
53
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
24,3%
Rank quotient ?This runner's calculation uses 54 eligible race(s): Σ(rank − 1) = 1 125; Σ finishers = 4 633. 1 125 / 4 633 × 100 = 24.28%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed54
Km — ultra races4 901 km
> 100 km14
> 160 km10
> 200 km1
> 24h9
> 48h1
Longest race500,0 km
11th Last Annual Vol-State 500K Endurance Run — 14/7/2016

Km per year (ultra races)

363
6 races
2022
356
4 races
2023
407
4 races
2024
247
2 races
2025
2026

Race types (share of distance)

Road53,5%
Trail40,7%
Elim.4,8%
Ult.Walk1,0%

Wins & podiums (ultra)

🏆 Win2
🏆 Win M2
🏅 Top 38
🏅 Top 3 M11
Longest winning streak1
Current streak0

Records

50 km4h07'1850 mi7h45'10100 mi19h25'0012 h94,95 km24 h154,50 kmBackyard11 loops

HISTORY

54 race(s)
DateRacePerf.Rk
2025
08.03 12h USA19th Delano Park 12 Hour Run 83.685 km13
17.01 34h USA3rd Dark Anchors 163.348 km7
2024
27.12 24h USA1st Moccasin 24 51.499 km60
31.08 24h USA8th The Blood Run at The Good Earth Farm 24 Hour 93.567 km5
20.07 24h USA2nd Hell Mary - 24h 101.388 km13
19.04 34h USA1st Capitan Mountain 34 Hour 160.934 km13
2023
29.09 100mi USA9th The Yeti 100 Mile Endurance Run 25:28:52 h74
22.04 50km USA2nd Death by 5k Memphis 4:07:18 h4
04.03 12h USA17th Delano Park 12 Hour Run 94.951 km9
14.01 50km USA18th Swamp Stomper 50K 7:28:24 h26
2022
03.12 50mi USA9th Brazos Bend 100 - 50 Mile 11:16:38 h63
22.10 50km USA2nd Cotton Pickin 50 km Race 5:34:37 h6
17.09 50km USA9th Stanky Creek 50 km Trail Race 6:48:59 h10
12.08 24h USA8th Anchor Down Ultra 24 Hour Run 82.800 km65
21.05 50km USA3rd Witch Dance 50 km Trail Run 7:10:39 h5
16.04 50km USA24th Double Chubb 50k 7:24:14 h41
2021
27.12 100mi USA4th Charleston 100 Race 30:11:29 h18
23.10 50km USA1st Cotton Pickin 50 km Race 5:55:04 h6
13.02 50km USA4th Eagle Ridge 50km 6:29:33 h20
2020
17.10 50km USA3rd Big Hill Pond Walking Tall 6:36:09 h26
19.09 50km USA7th Stanky Creek 50 km Trail Race 5:24:59 h6
07.03 50km USA4th Ozark Highlands Endurance Run 5:31:05 h5
2019
09.11 50mi USA6th Tunnel Hill 50 Mile Race 9:24:20 h79
12.10 24h USA4th Sleepy Hollow 24 Hour Ultra 154.497 km4
28.09 50km USA3rd Crimson Canyon 50 km Ultramarathon 11:47:32 h30
15.09 50km USA6th Stanky Creek 50 km Trail Race 5:27:30 h3 🥉
24.08 50km USA3rd Shawnee Hills 100 - 50 km 6:36:55 h7
01.06 100mi USA3rd Lighthouse 100-Mile Ultra 29:43:00 h28
16.03 100mi USA7th The Pistol 100 Mile Ultra Run 19:39:13 h9
26.01 50km USA25th Mountain Mist 50k 5:35:05 h49
12.01 50mi USA39th Avalon Benefit 50 Mile Run 7:45:10 h13
2018
29.12 Backyard Ultra USA7th Trail of Fears Variable Hour Run 53.648 km (8h)20
16.09 50km USA5th Stanky Creek 50 km Trail Race 5:22:24 h3 🥉
30.08 86h USA4th A Race for the Ages 128.747 km126
21.07 50km USA27th Full Moon Run - Midnight 50K 6:23:43 h41
09.06 10h USA12th Run Under The Stars - Paducah 80.467 km16
18.03 50km USA6th The Pistol 50 km Ultra Run 5:03:50 h12
24.02 24h USA2nd Run4Water 24 Hours Run 80.483 km26
2017
10.06 10h USA11th Run Under The Stars - Paducah 102.193 km3 🥉
06.05 40mi USA39th Strolling Jim 40 Mile 5:47:36 h12
08.04 100mi USA5th Beyond Limits Ultra Race 100mi 19:25:00 h1 🏆
18.03 100mi USA5th Lake Martin 100 Mile Ultra Trail Race 24:38:43 h3 🥉
2016
12.11 50mi USA3rd Tunnel Hill 50 Mile Race 9:09:59 h42
11.09 50km USA3rd Stanky Creek 50 km Trail Race 5:02:37 h3 🥉
14.07 500km USA11th Last Annual Vol-State 500K Endurance Run 4d 22:23:34 h6
2015
19.12 Backyard Ultra USA4th Trail of Fears Variable Hour Run 53.648 km (8h)11
2014
27.12 Backyard Ultra USA3rd Trail of Fears Variable Hour Run 53.648 km (8h)8
2013
21.12 Backyard Ultra USA2nd Trail of Fears Variable Hour Run 73.766 km (11h)2 🥈
24.08 100mi USA9th Lean Horse Ultra-Marathon 100 Mile 21:35:58 h6
08.06 10h USA7th Run Under The Stars - Paducah 94.146 km5
2012
15.12 50mi USA5th Lookout Mountain 50 Mile Race 10:07:29 h66
04.02 50km USA1st Jackson Jackass 50K 5:23:25 h1 🏆
2010
20.02 50km USA18th Sylamore Trail 50k Run 5:50:19 h37
2009
18.01 50km USA4th Swamp Stomper 50K 5:47:34 h12