James Arthurs
ID 746730
Born : 1931 Cat. M95 Ultrarunner since 1992 USA
37
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
83,0%
Rank quotient ?This runner's calculation uses 37 eligible race(s): Σ(rank − 1) = 7 784; Σ finishers = 9 376. 7 784 / 9 376 × 100 = 83.02%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed37
Km — ultra races1 791 km
Longest race50,7 km
8th Tamalpa Headlands 50K — 27/8/2005

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Trail100,0%

Records

50 km6h14'49

HISTORY

37 race(s)
DateRacePerf.Rk
2005
26.11 28mi USA21st Quad Dipsea Trail Run 7:57:07 h201
27.08 31.5mi USA8th Tamalpa Headlands 50K 8:11:00 h157
12.03 50km USA16th Way Too Cool 50K Endurance Run 7:38:33 h411
2004
27.11 28mi USA20th Quad Dipsea Trail Run 7:48:23 h183
21.08 31.5mi USA7th Tamalpa Headlands 50K 8:02:55 h104
13.03 50km USA15th Way Too Cool 50K Endurance Run 7:21:09 h435
2003
29.11 28mi USA19th Quad Dipsea Trail Run 7:40:12 h197
23.08 31.5mi USA6th Tamalpa Headlands 50K 8:42:36 h170
08.03 50km USA14th Way Too Cool 50K Endurance Run 6:53:42 h410
2002
30.11 28mi USA18th Quad Dipsea Trail Run 7:24:45 h179
24.08 31.5mi USA5th Tamalpa Headlands 50K 8:11:07 h191
09.03 50km USA13th Way Too Cool 50K Endurance Run 6:55:21 h434
2001
24.11 28mi USA17th Quad Dipsea Trail Run 7:22:13 h140
25.08 31.5mi USA4th Tamalpa Headlands 50K 7:15:38 h146
10.03 50km USA12th Way Too Cool 50K Endurance Run 7:14:36 h432
2000
25.11 28mi USA16th Quad Dipsea Trail Run 7:17:31 h169
26.08 31.5mi USA3rd Tamalpa Headlands 50K 7:57:46 h108
11.03 50km USA11th Way Too Cool 50K Endurance Run 7:23:40 h430
1999
27.11 28mi USA15th Quad Dipsea Trail Run 7:28:41 h159
06.11 50km USANapa Valley 50 km 6:15:59 h33
28.08 31.5mi USA2nd Tamalpa Headlands 50K 7:18:47 h105
13.03 50km USA10th Way Too Cool 50K Endurance Run 6:42:40 h371
1998
28.11 28mi USA14th Quad Dipsea Trail Run 7:23:34 h169
29.08 31.5mi USA1st Tamalpa Headlands 50K 7:38:42 h100
14.03 50km USA9th Way Too Cool 50K Endurance Run 6:48:11 h291
1997
29.11 28mi USA13th Quad Dipsea Trail Run 6:43:05 h132
06.09 50km USA3rd Point Reyes 50K 7:43:31 h166
15.03 50km USA8th Way Too Cool 50K Endurance Run 6:14:49 h267
1996
30.11 28mi USA12th Quad Dipsea Trail Run 6:54:49 h149
24.08 50km USA2nd Point Reyes 50K 6:44:34 h120
09.03 50km USA7th Way Too Cool 50K Endurance Run 6:17:00 h228
1995
25.11 28mi USA11th Quad Dipsea Trail Run 7:18:06 h154
02.09 50km USA1st Point Reyes 50K 7:28:04 h132
1994
12.03 50km USA5th Way Too Cool 50K Endurance Run 6:34:05 h253
1993
27.11 28mi USA9th Quad Dipsea Trail Run 7:01:46 h118
13.03 50km USA4th Way Too Cool 50K Endurance Run 7:11:17 h281
1992
28.11 28mi USA8th Quad Dipsea Trail Run 7:09:22 h96