Letha Cruthirds
ID 15107
Born : 1953 Cat. W70 Ultrarunner since 2000 USA
67
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
80
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
51,8%
Rank quotient ?This runner's calculation uses 91 eligible race(s): Σ(rank − 1) = 4 223; Σ finishers = 8 151. 4 223 / 8 151 × 100 = 51.81%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed91
Km — ultra races11 764 km
> 100 km51
> 160 km50
> 200 km10
> 24h16
> 48h13
Longest race332,9 km
9th Endless Mile - 72 Hour Race — 24/10/2024

Km per year (ultra races)

150
2 races
2022
294
2 races
2023
1 377
7 races
2024
483
4 races
2025
2026

Race types (share of distance)

Road36,2%
Trail63,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win F7
🏅 Top 33
🏅 Top 3 F21
Longest winning streak1
Current streak0

Records

50 km5h56'54100 km14h13'1450 mi8h56'05100 mi20h29'0424 h173,60 km48 h220,01 km

HISTORY

91 race(s) · 12 split(s) nested
DateRacePerf.Rk
2025
30.12 55h USA13th Snowdrop Ultra 55 Hour Race 184.446 km27
15.11 50km USA6th Wild Florida 50 km Race 8:15:51 h169
23.10 72h USA10th Endless Mile - 72 Hour Race 167.711 km23
18.10 50mi USA7th The New Orleans 50 Mile Ultramarathon 13:29:00 h26
2024
30.12 55h USA12th Snowdrop Ultra 55 Hour Race 261.116 km6
21.12 100mi USA26th Ancient Oaks 100 Mile Run 29:59:20 h6
24.10 72h USA9th Endless Mile - 72 Hour Race 332.918 km1 🏆
19.10 50mi USA6th The New Orleans 50 Mile Ultramarathon 12:15:00 h27
31.08 100mi USA10th Wildcat 100 - 100 Mile Race 31:52:00 h8
19.04 48h USA2nd Earth Day Buckle Mania 48h 220.013 km2 🥈
16.02 100mi USA6th Grandmaster Ultras 100 Mile Run 39:47:00 h15
2023
30.12 55h USA11th Snowdrop Ultra 55 Hour Race 244.450 km5
14.10 50km USA5th The New Orleans 50 km Ultramarathon 8:23:02 h45
2022
15.10 100km USA14th Oil Creek 100 km Trail Run 21:56:59 h63
01.10 50km USA4th The New Orleans 50 km Ultramarathon 7:24:00 h26
2021
30.12 55h USA9th Snowdrop Ultra 55 Hour Race 242.237 km6
09.10 50km USA3rd The New Orleans 50 km Ultramarathon 7:35:00 h21
2019
30.12 55h USA7th Snowdrop Ultra 55 Hour Race 265.550 km4
19.10 50km USA1st The New Orleans 50 km Ultramarathon 7:15:00 h51
28.08 87h USA5th A Race for the Ages 281.635 km5
18.05 100mi USA12th Keys100 Ultra-Marathons 100mi 30:41:46 h104
09.03 50km USA8th Everglades 50 km Ultra Run 6:43:01 h48
02.03 50km USA38th Carl Touchstone Memorial Mississippi Trail 50 km 7:57:12 h51
2018
30.12 55h USA6th Snowdrop Ultra 55 Hour Race 265.541 km6
15.12 100mi USA20th Ancient Oaks 100 Mile Run 28:12:30 h5
14.07 10h USA6th LUR's Hotter than Hell, Dusk to Dawn Ultra Marathon 51.499 km15
2017
30.12 55h USA5th Snowdrop Ultra 55 Hour Race 249.448 km8
15.07 10h USA5th LUR's Hotter than Hell, Dusk to Dawn Ultra Marathon 57.936 km14
08.04 50km USA10th Draggin' Tail Ultra Trail Challenge 50K 8:50:01 h19
2016
30.12 55h USA4th Snowdrop Ultra 55 Hour Race 161.030 km39
01.10 100mi USA26th Arkansas Traveller 100 29:19:52 h84
02.04 50km USA9th Draggin' Tail Ultra Trail Challenge 50K 9:11:47 h23
2015
30.12 55h USA3rd Snowdrop Ultra 55 Hour Race 223.537 km15
19.12 100mi USA17th Ancient Oaks 100 Mile Run 27:28:51 h8
03.10 100mi USA25th Arkansas Traveller 100 27:28:05 h76
11.04 50km USA8th Draggin' Tail Ultra Trail Challenge 50K 9:02:57 h17
2014
20.12 100mi USA16th Ancient Oaks 100 Mile Run 29:44:21 h24
04.10 100mi USA24th Arkansas Traveller 100 27:41:44 h72
2013
21.12 100mi USA15th Ancient Oaks 100 Mile Run 28:36:36 h21
19.10 50km USA29th Palo Duro 50 km Trail Run 7:49:18 h59
05.10 100mi trail race USA23rd Arkansas Traveller 100 29:48:12 h68
2012
01.12 100mi USA14th Ancient Oaks 100 Mile Run 29:44:35 h21
2011
03.12 100mi USA13th Ancient Oaks 100 Mile Run 29:03:49 h19
01.10 100mi USA21st Arkansas Traveller 100 27:54:40 h45
2010
02.10 100mi USA20th Arkansas Traveller 100 29:09:56 h61
15.05 100mi USA3rd Keys100 Ultra-Marathons 100mi 28:53:50 h23
01.05 100km USA15th Miwok 100k Trail race 16:11:11 h263
2009
08.08 100mi USA3rd Headlands Hundred 100 Mile Endurance Run 29:22:03 h30
07.03 50mi USA19th Old Pueblo 50 Mile Endurance Run 13:26:16 h101
2008
18.10 50km USA24th Palo Duro 50 km Trail Run 6:56:01 h51
19.07 100mi USA7th Tahoe Rim Trail 100M Endurance Runs 32:42:46 h50
01.03 50mi USA18th Old Pueblo 50 Mile Endurance Run 14:18:23 h101
09.02 50km USA14th East Texas Ultra Runners 50K 7:05:40 h15
2007
03.02 50mi USA15th Rocky Raccoon 50 Mile Trail Run 10:53:02 h44
2006
18.11 24h USA6th Ultracentric 24 Hour Run 139.819 km36
21.10 50mi USA22nd Palo Duro 50 Mile Trail Run 10:49:31 h30
04.02 100mi USA14th Rocky Raccoon 100 Mile Trail Run 25:52:43 h81
2005
26.11 24h USA5th Ultracentric 24 Hour Run 163.123 km4
15.10 50km USA21st Palo Duro 50 km Trail Run 6:03:00 h18
05.03 50mi USA15th Old Pueblo 50 Mile Endurance Run 14:28:53 h91
05.02 100mi USA13th Rocky Raccoon 100 Mile Trail Run 23:15:11 h37
2004
02.10 100mi USA14th Arkansas Traveller 100 26:45:54 h44
26.06 100mi USA31th Western States 100 Mile Endurance Run 29:11:48 h246
03.04 50km USA12th Hog's Hunt 50K Trail Run 6:09:11 h41
20.03 50mi USA5th Grasslands 50 Mile Trail Run 10:05:36 h29
07.02 100mi USA12th Rocky Raccoon 100 Mile Trail Run 23:08:05 h41
10.01 100km USA4th Bandera 100 km Ultratrail 14:13:14 h23
2003
04.10 100mi USA13th Arkansas Traveller 100 23:49:04 h18
06.09 100mi USA24th Wasatch Front 100 Mile 33:57:53 h94
16.08 100mi USA21st Leadville Trail 100 Mile 29:03:10 h151
19.07 100mi USA15th Vermont 100 Mile Endurance Race 22:59:30 h102
28.06 100mi USA30th Western States 100 Mile Endurance Run 28:31:37 h207
22.03 50mi USA4th Grasslands 50 Mile Trail Run 8:56:05 h29
08.02 50km USA9th East Texas Ultra Runners 50K 6:19:07 h19
2002
07.12 50km USA13th Sunmart Texas Trails 50 km 5:57:25 h262
30.11 24h USA3rd Ultracentric 24 Hour Run 173.600 km2 🥈
09.11 50km USA7th Rockledge Rumble Trail Run 6:02:23 h19
19.10 50km USA18th Palo Duro 50 km Trail Run 5:56:54 h11
05.10 100mi USA12th Arkansas Traveller 100 22:27:25 h21
17.08 100mi USA20th Leadville Trail 100 Mile 29:41:39 h177
11.05 100mi USA8th Massanutten Mountain Trails 100 Mile 31:05:29 h43
27.04 50km USA2nd Hells Hills 50km Race 6:04:40 h26
30.03 50mi USA3rd Grasslands 50 Mile Trail Run 9:41:43 h7
02.02 100mi USA10th Rocky Raccoon 100 Mile Trail Run 20:29:04 h27
2001
20.10 50mi USA17th Palo Duro 50 Mile Trail Run 10:22:56 h13
06.10 100mi USA11th Arkansas Traveller 100 21:57:37 h18
28.04 50km USA1st Hells Hills 50km Race 6:02:41 h31
03.02 100mi USA9th Rocky Raccoon 100 Mile Trail Run 23:03:15 h41
2000
02.12 50mi USA11th Sunmart Texas Trails 50 Mile 9:36:10 h96
28.10 50mi USA16th Palo Duro 50 Mile Trail Run 11:50:44 h17
12.02 50km USA6th East Texas Ultra Runners 50K 6:07:51 h26