Lawrence Sandhaas
ID 82390
Born : 1968 Cat. M55 Ultrarunner since 2008 USA
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
48
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
67,3%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 1 620; Σ finishers = 2 408. 1 620 / 2 408 × 100 = 67.28%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 960 km
> 100 km10
> 160 km7
> 200 km1
Longest race217,3 km
10th Arrowhead Winter Ultra — 26/1/2015

Km per year (ultra races)

50
1 race
2022
50
1 race
2023
50
1 race
2024
130
2 races
2025
2026

Race types (share of distance)

Road2,5%
Trail97,5%

Records

50 km6h30'45100 km17h48'2750 mi10h11'45100 mi27h10'02

HISTORY

32 race(s)
DateRacePerf.Rk
2025
11.10 50mi USA20th Farmdale Trail Run 50 Mile 15:55:58 h27
19.04 50km USA5th Loud Thunder 50 km Race 9:37:30 h36
2024
20.04 50km USA4th Loud Thunder 50 km Race 7:34:30 h36
2023
15.04 50km USA3rd Loud Thunder 50 km Race 8:35:51 h39
2022
16.04 50km USA2nd Loud Thunder 50 km Race 9:16:56 h46
2017
07.01 80mi USA8th Tuscobia Winter 80 Mile Ultramarathon 28:46:00 h13
2016
09.04 50mi USA16th Potawatomi 50 Mile Trail Run 13:28:58 h37
2015
12.09 100mi USA1st The Hennepin Hundred - 100 Mile Run 27:10:02 h49
26.01 135mi USA10th Arrowhead Winter Ultra 2d 08:32:00 h37
02.01 75mi USA6th Tuscobia Winter 75 Mile Ultramarathon 26:33:00 h8
2014
03.10 100mi USA6th Grindstone 100 Mile 36:15:33 h176
2013
28.12 75mi USA5th Tuscobia Winter 75 Mile Ultramarathon 29:00:00 h14
13.10 50mi USA27th Glacial Trail 50 Mile Race 11:30:44 h46
13.07 50mi USA10th Dances with Dirt - Devil's Lake 50M Ultra 12:27:20 h63
14.06 100mi USA22nd Bighorn Mountain Wild & Scenic 100 Mile Trail Run 32:19:28 h92
06.04 50mi USA13th Potawatomi 50 Mile Trail Run 16:14:38 h32
2012
11.11 50km USA3rd Wildcat 50k Trail Run 7:13:15 h33
20.10 100km USA4th Wild Duluth 100 km Races 17:48:27 h23
02.06 100mi USA17th Kettle Moraine 100 Mile Endurance Run 28:43:44 h105
31.03 30mi USA6th Clinton Lake Ultra 6:48:17 h71
2011
13.11 50km USA2nd Wildcat 50k Trail Run 6:30:45 h17
15.10 50km USA1st Forest Glen Trail Run 8:18:55 h5
16.07 100mi USA10th Tahoe Rim Trail 100M Endurance Run 32:12:21 h47
21.05 8h USA2nd CRUD 8 Hour Trail Run 45.061 km16
09.04 50mi USA11th Potawatomi 50 Mile Trail Run 12:36:04 h30
26.03 30mi USA5th Clinton Lake Ultra 6:08:52 h45
2010
14.11 50km USA1st Wildcat 50k Trail Run 7:05:00 h20
08.05 50mi USA29th Ice Age Trail 50 Mile Run 10:56:00 h156
2009
31.10 30mi USA1st McNotagain 30 Mile Trail Run 7:14:00 h22
22.08 100mi USA27th Leadville Trail 100 Mile 29:15:08 h209
2008
25.10 50mi USA1st Endurance Challenge - Wisconsin Trail 50 Miles 10:11:45 h76
09.08 8h USA18th Howl at the Moon 8h Run 72.855 km26