Robert Thomas

Born : 1956 Cat. M70 Ultrarunner since 1989

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

United States

58,0%

Rank quotient ?This runner's calculation uses 39 eligible race(s): Σ(rank − 1) = 6 931; Σ finishers = 11 949. 6 931 / 11 949 × 100 = 58.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed39

Km — ultra races3 124 km

> 100 km6

> 160 km6

Longest race160,9 km

15th Wasatch Front 100 Mile — 9/9/1994

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road2,6%

Trail97,4%

Records

50 km4h54'10 50 mi7h50'48 100 mi23h52'50

HISTORY

39 race(s)

Date		Race	Perf.	Rk
2002
06.04	50mi	23rd American River 50 Mile Endurance Run	10:08:59 h	226
09.03	50km	13th Way Too Cool 50K Endurance Run	6:50:10 h	413
2001
07.04	50mi	22nd American River 50 Mile Endurance Run	11:39:29 h	332
10.03	50km	12th Way Too Cool 50K Endurance Run	6:24:59 h	315
2000
01.04	50mi	21st American River 50 Mile Endurance Run	10:09:52 h	197
11.03	50km	11th Way Too Cool 50K Endurance Run	7:18:05 h	417
1999
10.04	50mi	20th American River 50 Mile Endurance Run	12:03:25 h	514
13.03	50km	10th Way Too Cool 50K Endurance Run	7:21:15 h	444
1998
04.04	50mi	19th American River 50 Mile Endurance Run	10:52:47 h	389
14.03	50km	9th Way Too Cool 50K Endurance Run	6:12:17 h	214
1997
05.04	50mi	18th American River 50 Mile Endurance Run	10:55:36 h	411
15.03	50km	8th Way Too Cool 50K Endurance Run	7:08:39 h	377
1996
30.11	28mi	12th Quad Dipsea Trail Run	5:34:50 h	54
06.04	50mi	17th American River 50 Mile Endurance Run	10:29:36 h	304
09.03	50km	7th Way Too Cool 50K Endurance Run	7:39:22 h	335
1995
01.04	50mi	16th American River 50 Mile Endurance Run	10:00:53 h	308
1994
26.11	28mi	10th Quad Dipsea Trail Run	5:56:17 h	65
09.09	100mi	15th Wasatch Front 100 Mile	26:09:13 h	14
02.04	50mi	15th American River 50 Mile Endurance Run	7:55:57 h	83
12.03	50km	5th Way Too Cool 50K Endurance Run	4:54:10 h	67
1993
25.09	100mi	8th Angeles Crest 100 Mile	29:10:35 h	33
05.06	50km	4th Shadow of the Giants 50K	4:58:00 h	12
03.04	50mi	14th American River 50 Mile Endurance Run	7:50:48 h	67
13.03	50km	4th Way Too Cool 50K Endurance Run	5:07:59 h	71
1992
11.09	100mi	13th Wasatch Front 100 Mile	26:46:52 h	14
30.05	50km	3rd Shadow of the Giants 50K	5:39:11 h	90
04.04	50mi	13th American River 50 Mile Endurance Run	10:24:21 h	294
14.03	50km	3rd Way Too Cool 50K Endurance Run	5:22:21 h	106
11.01	50mi	12th Avalon Benefit 50-Mile Run	10:55:27 h	99
1991
17.08	100mi	9th Leadville Trail 100 Mile	29:03:04 h	111
01.06	50km	2nd Shadow of the Giants 50K	4:56:48 h	27
06.04	50mi	12th American River 50 Mile Endurance Run	8:24:05 h	94
09.02	50mi	13th Jed Smith Ultra Classic - 50 Mile Race	7:58:45 h	45
05.01	50mi	11th Avalon Benefit 50-Mile Run	8:31:17 h	25
1990
23.06	100mi	17th Western States 100 Mile Endurance Run	23:52:50 h	78
02.06	50km	1st Shadow of the Giants 50K	4:58:40 h	31
07.04	50mi	11th American River 50 Mile Endurance Run	8:31:12 h	133
1989
19.08	100mi	7th Leadville Trail 100 Mile	29:21:47 h	122
09.04	50mi	10th American River 50 Mile Endurance Run	8:21:57 h	39

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	9/9/1994	15th Wasatch Front 100 Mile	160,93	×3
✓ 2	25/9/1993	8th Angeles Crest 100 Mile	160,93	×3
✓ 3	11/9/1992	13th Wasatch Front 100 Mile	160,93	×3
✓ 4	17/8/1991	9th Leadville Trail 100 Mile	160,93	×3
✓ 5	23/6/1990	17th Western States 100 Mile Endurance Run	160,93	×3
✓ 6	19/8/1989	7th Leadville Trail 100 Mile	160,93	×3
✓ 7	6/4/2002	23rd American River 50 Mile Endurance Run	80,47	×1
✓ 8	7/4/2001	22nd American River 50 Mile Endurance Run	80,47	×1
✓ 9	1/4/2000	21st American River 50 Mile Endurance Run	80,47	×1
✓ 10	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 11	4/4/1998	19th American River 50 Mile Endurance Run	80,47	×1
✓ 12	5/4/1997	18th American River 50 Mile Endurance Run	80,47	×1
✓ 13	6/4/1996	17th American River 50 Mile Endurance Run	80,47	×1
✓ 14	1/4/1995	16th American River 50 Mile Endurance Run	80,47	×1
✓ 15	2/4/1994	15th American River 50 Mile Endurance Run	80,47	×1
✓ 16	3/4/1993	14th American River 50 Mile Endurance Run	80,47	×1
✓ 17	4/4/1992	13th American River 50 Mile Endurance Run	80,47	×1
✓ 18	11/1/1992	12th Avalon Benefit 50-Mile Run	80,47	×1
✓ 19	6/4/1991	12th American River 50 Mile Endurance Run	80,47	×1
✓ 20	9/2/1991	13th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 21	5/1/1991	11th Avalon Benefit 50-Mile Run	80,47	×1
✓ 22	7/4/1990	11th American River 50 Mile Endurance Run	80,47	×1
✓ 23	9/4/1989	10th American River 50 Mile Endurance Run	80,47	×1
✓ 24	9/3/2002	13th Way Too Cool 50K Endurance Run	50,00	×1
✓ 25	10/3/2001	12th Way Too Cool 50K Endurance Run	50,00	×1
✓ 26	11/3/2000	11th Way Too Cool 50K Endurance Run	50,00	×1
✓ 27	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	×1
✓ 28	14/3/1998	9th Way Too Cool 50K Endurance Run	50,00	×1
✓ 29	15/3/1997	8th Way Too Cool 50K Endurance Run	50,00	×1
✓ 30	9/3/1996	7th Way Too Cool 50K Endurance Run	50,00	×1
✓ 31	12/3/1994	5th Way Too Cool 50K Endurance Run	50,00	×1
✓ 32	5/6/1993	4th Shadow of the Giants 50K	50,00	×1
✓ 33	13/3/1993	4th Way Too Cool 50K Endurance Run	50,00	×1
✓ 34	30/5/1992	3rd Shadow of the Giants 50K	50,00	×1
✓ 35	14/3/1992	3rd Way Too Cool 50K Endurance Run	50,00	×1
✓ 36	1/6/1991	2nd Shadow of the Giants 50K	50,00	×1
✓ 37	2/6/1990	1st Shadow of the Giants 50K	50,00	×1
✓ 38	30/11/1996	12th Quad Dipsea Trail Run	45,06	—
✓ 39	26/11/1994	10th Quad Dipsea Trail Run	45,06	—