Frederick Stafford
Born : 1957 Cat. M65 Ultrarunner since 1993 USA
50
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
54,4%
Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 2 511; Σ finishers = 4 617. 2 511 / 4 617 × 100 = 54.39%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed61
Km — ultra races4 567 km
> 100 km7
> 160 km7
> 24h1
Longest race160,9 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road2,9%
Trail97,1%

HISTORY

61 race(s)
DateRacePerf.Rk
2007
17.03 24h USA6th Pacific Rim One Day 51.499 km31
2004
10.07 30mi CAN16th Knee Knackering North Shore Trail Run 8:11:35 h152
15.05 50mi USA11th Bishop High Sierra Ultramarathons 50 Miles 11:52:51 h48
2003
23.08 100mi USA5th Cascade Crest Classic 100 Mile 28:43:00 h25
02.08 50mi USA5th Mt. Hood 50 Mile Trail Run 9:56:32 h16
12.04 50km CAN7th Diez Vista 50K Trail Run 6:38:41 h70
15.03 50km USA11th Chuckanut 50K 6:01:15 h78
11.01 50km USA8th Bridle Trails Winter Running Festival 5:27:50 h22
2002
26.10 50km USA2nd Baker Lake 50K Ultra Trail Run 5:58:08 h17
24.08 100mi USA4th Cascade Crest Classic 100 Mile 28:51:00 h24
27.07 50mi USA10th White River 50 Mile Trail Run 10:51:21 h71
27.04 50mi USA13th Zane Grey Highline Trail 50 Mile 14:32:00 h40
30.03 50km USA1st Baker Lake 50K Ultra Trail Run 7:26:08 h28
16.02 50km USA2nd Hagg Lake Trail Runs 50K 6:35:20 h49
12.01 50km USA7th Bridle Trails Winter Running Festival 6:32:57 h23
2001
25.08 100mi USA3rd Cascade Crest Classic 100 Mile 28:00:00 h17
28.07 50mi USA9th White River 50 Mile Trail Run 10:40:44 h82
19.05 50mi USA16th Silver State 50 Miles 10:48:15 h20
28.04 50mi USA12th Zane Grey Highline Trail 50 Mile 13:28:31 h36
14.04 50km CAN5th Diez Vista 50K Trail Run 6:40:27 h80
17.02 50km USA1st Hagg Lake Trail Runs 50K 5:28:32 h34
13.01 50km USA6th Bridle Trails Winter Running Festival 5:53:50 h13
2000
11.11 50km USA9th Ron Herzog 50K 5:44:45 h16
12.08 34mi USA2nd Glacier Peak Trail Run 7:39:45 h10
29.07 47.6mi USA8th White River 50 Mile Trail Run 9:59:37 h22
03.06 50mi USA4th Snow Peaks 50 Mile Trail Run 11:44:52 h41
06.05 100km USA5th Miwok 100k Trail race 12:11:19 h55
08.04 50km CAN4th Diez Vista 50K Trail Run 6:13:39 h32
18.03 50km USA8th Chuckanut 50K 5:58:11 h44
1999
11.09 100mi USA20th Wasatch Front 100 Mile 29:58:00 h52
22.08 50mi USA1st Mt. Hood 50 Mile Trail Run 9:25:10 h5
24.07 47.6mi USA7th White River 50 Mile Trail Run 9:23:56 h23
06.05 50mi USA4th Winterhawk 50 Mile Trail Run 9:08:00 h16
10.04 50km CAN3rd Diez Vista 50K Trail Run 6:17:47 h26
13.03 50km USA7th Chuckanut 50K 5:59:50 h32
1998
14.11 50km USA7th Ron Herzog 50K 5:40:41 h14
25.10 50mi USA1st ORRC Autumn Leaves 50 Mile Run 8:48:33 h14
12.09 100mi USA19th Wasatch Front 100 Mile 35:03:00 h134
25.07 47.6mi USA6th White River 50 Mile Trail Run 10:27:09 h19
18.07 100km USAElkhorn Mountain Endurance Run 100 km 14:20:52 h41
06.06 50mi USA3rd Winterhawk 50 Mile Trail Run 9:29:00 h34
03.05 50km USA3rd McDonald Forest 50K Trail Run 6:18:34 h42
11.04 50km CAN2nd Diez Vista 50K Trail Run 7:21:20 h53
21.03 50km USA6th Chuckanut 50K 5:53:02 h30
1997
08.11 50km USA6th Ron Herzog 50K 5:46:00 h18
27.09 50km USA3rd Cle Elum Ridge 50k 6:43:56 h44
26.07 47.6mi USA5th White River 50 Mile Trail Run 10:02:47 h32
28.06 100mi USA24th Western States 100 Mile Endurance Run 27:34:16 h145
27.04 50km USA2nd McDonald Forest 50K Trail Run 6:03:38 h38
15.03 50km USA5th Chuckanut 50K 6:22:24 h30
1996
28.09 100mi USA11th Angeles Crest 100 Mile 30:44:20 h68
27.07 47.6mi USA4th White River 50 Mile Trail Run 10:09:32 h28
01.06 50mi USA2nd Winterhawk 50 Mile Trail Run 9:41:05 h27
16.03 50km USA4th Chuckanut 50K 6:24:08 h26
1995
30.09 50km USA1st Cle Elum Ridge 50k 6:45:52 h31
15.09 50mi USA1st Monument Valley 50 Milers - Sunday event 9:53:10 h9
29.07 47.6mi USA3rd White River 50 Mile Trail Run 11:07:19 h58
08.07 30mi CAN7th Knee Knackering North Shore Trail Run 7:47:04 h98
1994
30.07 47.6mi USA2nd White River 50 Mile Trail Run 11:02:10 h38
09.07 30mi CAN6th Knee Knackering North Shore Trail Run 8:56:10 h114
1993
31.07 47.6mi USA1st White River 50 Mile Trail Run 12:23:25 h37