Jim Boyd
ID 95313
Born : 1942 Cat. M80 Ultrarunner since 1997 USA
38
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
43
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
74,3%
Rank quotient ?This runner's calculation uses 38 eligible race(s): Σ(rank − 1) = 1 494; Σ finishers = 2 011. 1 494 / 2 011 × 100 = 74.29%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed38
Km — ultra races2 214 km
> 100 km2
> 160 km1
> 24h2
Longest race173,1 km
2nd San Diego One Day 24-Hour Race — 18/11/2000

Km per year (ultra races)

2022
51
1 race
2023
51
1 race
2024
2025
2026

Race types (share of distance)

Road38,0%
Trail62,0%

Records

50 km5h59'0050 mi8h27'2012 h62,76 km24 h173,15 km

HISTORY

38 race(s)
DateRacePerf.Rk
2024
30.03 12h USA14th Dizzy Daze 12 Hour Race 51.499 km35
2023
11.03 12h USA13th Dizzy Daze 12 Hour Race 51.499 km27
2018
24.03 12h USA9th Dizzy Daze 12 hours 51.499 km31
2017
25.03 12h USA8th Dizzy Daze 12 hours 51.499 km37
2016
13.08 12h USA4th Hamster Endurance Runs 12 Hour Run 62.764 km12
23.04 50km USA3rd Snake River Island Hop 50K 7:03:00 h7
13.02 50km USA7th Woolley Trail Runs 50k 7:55:47 h20
30.01 50km USA3rd Lake Youngs Nuts Run 8:08:00 h36
2015
16.05 12h USA11th Watershed Preserve 12 Hr Trail Race 51.901 km19
31.01 50km USA2nd Lake Youngs Nuts Run 6:55:30 h43
2013
17.08 12h USA1st Hamster Endurance Runs 12 Hour Run 50.211 km13
2012
09.06 28.8mi USA6th Lake Youngs Ultra 6:58:07 h41
2011
22.01 50km USA8th Pigtails Run 50K 8:23:10 h84
2009
13.06 28.8mi USA3rd Lake Youngs Ultra 5:37:55 h43
16.05 12h USA5th Watershed Preserve 12 Hr Trail Race 51.901 km61
28.03 50km USA1st Dizzy Daze 50 km 5:59:00 h15
24.01 50km USA5th Pigtails Run 50K 6:33:00 h42
2008
15.11 50km USA8th ORRC Autumn Leaves 50 km Run 6:11:43 h25
25.10 12h USA2nd Carkeek 12 Hour 52.802 km11
17.05 12h USA4th Watershed Preserve 12 Hr Trail Race 51.901 km43
26.01 50km USA4th Pigtails Run 50K 6:26:36 h45
2007
09.06 28.8mi USA1st Lake Youngs Ultra 5:09:00 h35
19.05 12h USA3rd Watershed Preserve 12 Hr Trail Race 51.901 km47
03.02 50km USA2nd Pigtails Run 50K 6:13:15 h38
2006
07.10 50km USA5th Baker Lake 50K Ultra Trail Run 8:07:04 h105
20.05 12h USA2nd Watershed Preserve 12 Hr Trail Race 51.901 km25
2004
13.11 50km USATanks Alot 50K 7:05:10 h18
2003
08.11 50km USATanks Alot 50K 6:45:07 h17
2002
14.04 50mi USA19th Mt. Si 50 Miles Ultra Run 9:00:05 h17
30.03 50km USA1st Baker Lake 50K Ultra Trail Run 8:14:36 h39
2001
10.11 50km USA10th Ron Herzog 50K 6:14:55 h16
08.04 50mi USA18th Mt. Si 50 Miles Ultra Run 8:27:20 h14
2000
18.11 24h USA2nd San Diego One Day 24-Hour Race 173.149 km7
1999
21.11 24h USA1st San Diego One Day 24-Hour Race 158.903 km8
28.08 31.5mi USA2nd Tamalpa Headlands 50K 7:21:14 h107
07.08 50km USA18th Skyline 50k Endurance Run 6:15:24 h136
1998
01.08 50km USA17th Skyline 50k Endurance Run 7:05:15 h184
1997
07.09 50km USA3rd Dances with Dirt - Hell 50K Ultra 6:30:33 h29