Ken Cox
ID 116047
Born : 1956 Cat. M70 Ultrarunner since 1989 USA
33
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
10,0%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 739; Σ finishers = 7 421. 739 / 7 421 × 100 = 9.96%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races2 117 km
> 100 km1
> 160 km1
Longest race160,9 km
18th Western States 100 Mile Endurance Run — 29/6/1991

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road20,8%
Trail79,2%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0

Records

50 km3h28'1550 mi6h04'54100 mi24h58'57

HISTORY

33 race(s)
DateRacePerf.Rk
2001
06.10 50km CAN2nd Lost Soul Ultra 50 km Race 7:51:00 h15
2000
01.04 50mi USA21st American River 50 Mile Endurance Run 8:32:24 h56
1999
15.05 50km USA14th Silver State 50 km 7:46:47 h26
08.05 50km USA16th Quicksilver 50 km Endurance Run 4:24:22 h5
10.04 50mi USA20th American River 50 Mile Endurance Run 7:27:54 h34
13.02 50km USA21st Jed Smith Ultra Classic - 50 km Race 3:54:57 h20
1998
28.11 28mi USA14th Quad Dipsea Trail Run 5:10:32 h24
10.10 50mi USA16th Dick Collins Firetrails 50 Mile 8:31:15 h14
29.08 31.5mi USA1st Tamalpa Headlands 50K 4:58:25 h11
01.08 50km USA17th Skyline 50k Endurance Run 4:39:41 h17
04.04 50mi USA19th American River 50 Mile Endurance Run 7:19:59 h36
1997
13.12 50km USA8th Sunmart Texas Trails 50 km 4:00:42 h18
06.09 50km USA3rd Point Reyes 50K 6:02:39 h71
10.05 50km USA14th Quicksilver 50 km Endurance Run 4:14:33 h7
15.03 50km USA8th Way Too Cool 50K Endurance Run 5:20:11 h128
1996
30.11 28mi USA12th Quad Dipsea Trail Run 4:48:14 h18
09.03 50km USA7th Way Too Cool 50K Endurance Run 4:20:09 h18
1995
01.04 50mi USA16th American River 50 Mile Endurance Run 7:06:40 h25
05.02 50km USA17th Jed Smith Ultra Classic - 50 km Race 3:34:32 h4
1994
12.03 50km USA5th Way Too Cool 50K Endurance Run 4:22:02 h25
05.02 50km USA16th Jed Smith Ultra Classic - 50 km Race 3:28:15 h4
1993
03.04 50mi USA14th American River 50 Mile Endurance Run 6:33:56 h8
13.03 50km USA4th Way Too Cool 50K Endurance Run 4:28:58 h19
06.02 50km USA15th Jed Smith Ultra Classic - 50 km Race 3:31:01 h4
1991
29.06 100mi USA18th Western States 100 Mile Endurance Run 24:58:57 h107
06.04 50mi USA12th American River 50 Mile Endurance Run 6:42:34 h10
09.02 50mi USA13th Jed Smith Ultra Classic - 50 Mile Race 6:04:54 h1 🏆
1990
07.04 50mi USA11th American River 50 Mile Endurance Run 6:34:00 h12
10.03 50km USA1st Way Too Cool 50K Endurance Run 4:13:44 h5
11.02 50mi USA12th Jed Smith Ultra Classic - 50 Mile Race 6:14:33 h6
1989
16.09 50km USAPacific Crest Trail 50 km 5:20:37 h17
13.05 50mi USA1st Ouachita Trail 50 Mile 7:29:00 h2 🥈
11.02 50mi USA11th Jed Smith Ultra Classic - 50 Mile Race 6:16:47 h5