Doug Schrock
ID 268978
Born : 1952 Cat. M70 Ultrarunner since 1981 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
1
Countries visited ?USAUnited States
21,2%
Rank quotient ?This runner's calculation uses 33 eligible race(s): Σ(rank − 1) = 1 231; Σ finishers = 5 812. 1 231 / 5 812 × 100 = 21.18%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races2 185 km
> 100 km2
> 160 km1
Longest race160,9 km
12th Western States 100 Mile Endurance Run — 6/7/1985

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road6,0%
Trail94,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 34
🏅 Top 3 M4
Longest winning streak1
Current streak0

Records

50 km4h21'4750 mi6h40'40100 mi21h54'39

HISTORY

33 race(s)
DateRacePerf.Rk
2007
24.11 28mi USA23rd Quad Dipsea Trail Run 6:54:24 h164
2001
10.03 50km USA12th Way Too Cool 50K Endurance Run 5:40:17 h189
2000
24.09 50km USA1st Whiskeytown 50km Trail Run 5:58:28 h7
1998
28.11 28mi USA14th Quad Dipsea Trail Run 4:58:49 h16
04.04 50mi USA19th American River 50 Mile Endurance Run 9:13:22 h197
1997
29.11 28mi USA13th Quad Dipsea Trail Run 4:59:42 h21
05.04 50mi USA18th American River 50 Mile Endurance Run 8:45:14 h159
1996
30.11 28mi USA12th Quad Dipsea Trail Run 5:11:14 h32
01.06 50km USA7th Shadow of the Giants 50K 5:40:03 h37
1994
26.11 28mi USA10th Quad Dipsea Trail Run 5:09:47 h30
26.03 50km USA11th San Juan Trail 50 km 5:46:56 h22
1993
20.11 50mi USA10th San Juan Trail 50 Mile 10:30:46 h45
03.04 50mi USA14th American River 50 Mile Endurance Run 7:40:50 h51
13.03 50km USA4th Way Too Cool 50K Endurance Run 4:28:17 h18
30.01 50mi USA7th Ledson Marsh 50 Mile 7:30:03 h4
1992
28.11 28mi USA8th Quad Dipsea Trail Run 4:39:10 h7
1991
30.11 28mi USA7th Quad Dipsea Trail Run 4:42:07 h6
1990
15.09 50km USAPacific Crest Trail 50 km 5:41:28 h14
1989
16.09 50km USAPacific Crest Trail 50 km 5:02:10 h7
1988
26.11 28mi USA4th Quad Dipsea Trail Run 4:12:31 h1 🏆
1987
27.11 28mi USA3rd Quad Dipsea Trail Run 4:10:37 h4
10.10 50mi USA5th Dick Collins Firetrails 50 Mile 7:16:55 h2 🥈
01.08 50km USA6th Skyline 50k Endurance Run 4:22:08 h3 🥉
12.04 50mi USA8th American River 50 Mile Endurance Run 6:40:40 h13
28.03 52.4mi USAThe Forty-Niner Double Marathon Trail Run 7:16:52 h4
1986
29.11 28mi USA2nd Quad Dipsea Trail Run 4:21:01 h2 🥈
1985
06.07 100mi USA12th Western States 100 Mile Endurance Run 21:54:39 h35
06.04 52.4mi USAThe Forty-Niner Double Marathon Trail Run 8:21:19 h18
09.02 50mi USA7th Jed Smith Ultra Classic - 50 Mile Race 7:21:26 h28
1984
13.05 50mi USACalifornia 50 Mile Endurance Run 8:25:32 h24
1982
26.06 93.5mi USA9th Western States 100 Mile Endurance Run 22:54:00 h51
18.04 50mi USA3rd American River 50 Mile Endurance Run 8:04:12 h49
1981
29.11 50km USAUltra Challenge 50 km 4:21:47 h4