Brent Spilsbury
ID 80743
Born : 1948 Cat. M75 Ultrarunner since 1987 USA
44
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
2
Countries visited ?CANCanadaUSAUnited States
47,6%
Rank quotient ?This runner's calculation uses 44 eligible race(s): Σ(rank − 1) = 1 877; Σ finishers = 3 945. 1 877 / 3 945 × 100 = 47.58%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed44
Km — ultra races3 664 km
> 100 km10
> 160 km10
Longest race160,9 km
15th Vermont 100 Mile Endurance Race — 19/7/2003

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road2,0%
Trail98,0%

Records

50 km4h38'14100 km13h44'1150 mi9h29'20100 mi22h16'11

HISTORY

44 race(s)
DateRacePerf.Rk
2007
06.10 50km USA6th Baker Lake 50K Ultra Trail Run 6:29:50 h41
2006
07.10 50km USA5th Baker Lake 50K Ultra Trail Run 5:58:28 h44
23.04 50km USA23rd Mt. Si 50 km Ultra Run 4:38:14 h11
18.03 50km USA14th Chuckanut 50K 5:41:22 h89
2005
01.10 50km USA4th Baker Lake 50K Ultra Trail Run 5:51:17 h33
2004
02.10 50km USA1st Capitol Peak 50K 6:49:40 h24
21.08 100km USA3rd Where's Waldo 100K Ultramarathon 16:12:19 h23
10.07 30mi CAN16th Knee Knackering North Shore Trail Run 7:42:17 h125
13.03 50km USA12th Chuckanut 50K 5:56:15 h92
24.01 34mi USA2nd Capitol Peak MegaFatAss 7:52:00 h21
2003
19.07 100mi USA15th Vermont 100 Mile Endurance Race 22:16:11 h73
15.03 50km USA11th Chuckanut 50K 5:50:35 h69
2002
24.08 100mi USA4th Cascade Crest Classic 100 Mile 27:12:00 h13
27.07 50mi USA10th White River 50 Mile Trail Run 11:24:04 h85
13.04 50km CAN6th Diez Vista 50K Trail Run 7:06:31 h81
16.03 50km USA10th Chuckanut 50K 6:28:50 h74
2001
25.08 100mi USA3rd Cascade Crest Classic 100 Mile 28:04:00 h18
02.06 100mi USA23rd Old Dominion 100 Mile Endurance Run 23:51:09 h40
14.04 50km CAN5th Diez Vista 50K Trail Run 6:21:33 h63
17.03 50km USA9th Chuckanut 50K 5:51:14 h56
2000
23.09 50km USA6th Cle Elum Ridge 50k 6:19:52 h28
26.08 100mi USA2nd Cascade Crest Classic 100 Mile 28:03:00 h11
08.07 30mi CAN12th Knee Knackering North Shore Trail Run 7:53:01 h108
03.06 50mi USA1st Forest Park 50 Mile Trail Run 9:54:00 h8
08.04 50km CAN4th Diez Vista 50K Trail Run 6:27:56 h36
1999
25.09 50km USA5th Cle Elum Ridge 50k 6:21:00 h32
21.08 100mi USA1st Cascade Crest Classic 100 Mile 27:40:00 h5
17.07 100km USAElkhorn Mountain Endurance Run 100 km 13:44:11 h34
06.05 50mi USA4th Winterhawk 50 Mile Trail Run 9:40:00 h21
10.04 50km CAN3rd Diez Vista 50K Trail Run 7:30:29 h50
13.03 50km USA7th Chuckanut 50K 6:19:03 h43
1998
26.09 50km USA4th Cle Elum Ridge 50k 6:44:02 h43
05.09 100mi CAN3rd The Eagle 100 Mile Endurance Run 29:39:53 h17
25.07 47.6mi USA6th White River 50 Mile Trail Run 10:55:43 h23
09.05 100mi USA4th Massanutten Mountain Trails 100 Mile 33:53:44 h44
1997
08.11 50km USA6th Ron Herzog 50K 5:44:00 h17
27.09 50km USA3rd Cle Elum Ridge 50k 6:34:38 h35
26.07 47.6mi USA5th White River 50 Mile Trail Run 10:02:19 h31
1996
27.07 47.6mi USA4th White River 50 Mile Trail Run 10:09:46 h29
29.06 100mi USA23rd Western States 100 Mile Endurance Run 27:22:57 h121
01.06 50mi USA2nd Winterhawk 50 Mile Trail Run 9:29:20 h25
1995
08.09 100mi USA16th Wasatch Front 100 Mile 28:58:32 h40
29.07 47.6mi USA3rd White River 50 Mile Trail Run 9:26:53 h24
1987
26.04 75km USA5th Falls to Gasworks Ultra Run 7:50:23 h21