Thomas O'Connell

Born : 1951 Cat. M75 Ultrarunner since 1980

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

43,2%

Rank quotient ?This runner's calculation uses 95 eligible race(s): Σ(rank − 1) = 7 080; Σ finishers = 16 394. 7 080 / 16 394 × 100 = 43.19%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed95

Km — ultra races7 957 km

> 100 km16

> 160 km16

> 24h1

> 48h1

Longest race160,9 km

27th Leadville Trail 100 Mile — 22/8/2009

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road7,8%

Trail92,2%

Records

50 km4h02'25 100 km9h37'22 50 mi7h19'49 100 mi16h57'00

HISTORY

95 race(s)

Date		Race	Perf.	Rk
2015
04.09	84h	1st A Race for the Ages	80.467 km	141
2010
18.06	50km	19th Bighorn Mountain Wild & Scenic 50km Trail Run	9:05:04 h	132
17.01	38.5mi	5th The Ghost Town 38.5	9:29:44 h	68
2009
06.12	50km	23rd OTHTC High Desert 50K Ultra	7:10:45 h	190
22.08	100mi	27th Leadville Trail 100 Mile	29:52:37 h	271
26.07	50mi	2nd Leadville Silver Rush 50 Mile Run	12:04:52 h	105
09.05	50mi	26th Quicksilver 50 Mile Endurance Run	11:48:53 h	70
02.05	50mi	10th Collegiate Peaks 50 Miles	11:44:56 h	63
14.02	50km	11th Pemberton Trail 50 km	5:34:39 h	70
17.01	50mi	29th Avalon Benefit 50-Mile Run	11:17:33 h	94
2008
06.12	50km	7th Woodside Trail Run 50K	6:04:07 h	31
06.09	50mi	6th Dances with Dirt - Hell 50M Ultra	11:47:55 h	29
19.07	50mi	7th Tahoe Rim Trail 50M Endurance Runs	12:29:52 h	62
21.06	50mi	14th San Juan Solstice 50 Mile Run	15:58:49 h	127
10.05	50km	25th Quicksilver 50 km Endurance Run	6:32:49 h	54
2007
19.05	50km	22nd Silver State 50 km	11:52:04 h	66
24.03	50km	2nd Antelope Island Buffalo Run 50 km	7:04:52 h	45
2006
24.06	100mi	33th Western States 100 Mile Endurance Run	29:49:26 h	202
03.06	50km	17th Shadow of the Giants 50K	7:45:06 h	49
20.05	50mi	13th Bishop High Sierra Ultramarathons 50 Miles	12:24:16 h	57
01.04	50mi	27th American River 50 Mile Endurance Run	9:55:03 h	189
2005
27.08	31.5mi	8th Tamalpa Headlands 50K	6:17:28 h	92
25.06	100mi	32th Western States 100 Mile Endurance Run	28:37:00 h	252
04.06	50mi	9th Snow Peaks 50 Mile Trail Run	13:49:22 h	79
30.04	100km	10th Miwok 100k Trail race	11:56:04 h	82
16.04	50mi	3rd Diablo Endurance Run	13:06:11 h	31
02.04	50mi	26th American River 50 Mile Endurance Run	8:38:42 h	80
2004
11.09	100mi	25th Wasatch Front 100 Mile	32:22:12 h	55
14.08	50mi	2nd Diablo Endurance Run	13:27:54 h	34
01.08	50km	23rd Skyline 50k Endurance Run	5:23:30 h	50
15.05	50mi	19th Silver State 50 Miles	11:30:05 h	31
24.04	50mi	15th Zane Grey Highline Trail 50 Mile	14:23:22 h	65
03.04	50mi	25th American River 50 Mile Endurance Run	9:19:13 h	120
20.03	50km	2nd Rucky Chucky Roundabout 50K	6:26:59 h	29
2003
29.11	28mi	19th Quad Dipsea Trail Run	6:43:19 h	144
11.10	50mi	21st Dick Collins Firetrails 50 Mile	9:39:20 h	43
09.08	50km	2nd Big Basin Redwoods Trail Run	7:55:30 h	28
03.08	50km	22nd Skyline 50k Endurance Run	5:33:09 h	65
19.07	50km	3rd Tahoe Rim Trail 50km Endurance Runs	7:14:02 h	48
28.06	100mi	30th Western States 100 Mile Endurance Run	24:40:42 h	98
07.06	50km	14th Shadow of the Giants 50K	5:50:39 h	26
05.04	50mi	24th American River 50 Mile Endurance Run	8:34:01 h	89
2002
12.10	50mi	20th Dick Collins Firetrails 50 Mile	9:47:08 h	50
24.08	31.5mi	5th Tamalpa Headlands 50K	6:01:20 h	101
19.05	50km	15th Ohlone 50K Wilderness Run	6:23:55 h	39
2001
17.03	50km	15th Crown King Scramble 50K	7:26:10 h	122
24.02	100km	5th Catalina 100K Trail Run	13:44:05 h	34
2000
24.06	100mi	27th Western States 100 Mile Endurance Run	28:59:11 h	166
03.06	50mi	4th Snow Peaks 50 Mile Trail Run	13:23:50 h	87
21.05	50km	13th Ohlone 50K Wilderness Run	8:45:14 h	33
08.01	50mi	20th Avalon Benefit 50-Mile Run	8:59:40 h	29
1999
11.12	50km	3rd Hunter S. Thompson Fear & Loathing 50 km	6:30:49 h	5
07.08	50km	18th Skyline 50k Endurance Run	5:41:02 h	85
26.06	100mi	26th Western States 100 Mile Endurance Run	26:04:31 h	92
16.05	50km	12th Ohlone 50K Wilderness Run	6:11:51 h	29
01.05	100km	4th Miwok 100k Trail race	13:11:45 h	74
10.04	50mi	20th American River 50 Mile Endurance Run	9:14:55 h	194
13.03	50km	10th Way Too Cool 50K Endurance Run	5:24:49 h	145
1998
28.11	28mi	14th Quad Dipsea Trail Run	6:25:39 h	110
10.10	50mi	16th Dick Collins Firetrails 50 Mile	10:06:02 h	46
01.08	50km	17th Skyline 50k Endurance Run	6:42:40 h	155
1996
17.08	50mi	2nd Cameron Park 50 Mile	8:51:05 h	25
27.07	47.6mi	4th White River 50 Mile Trail Run	10:08:28 h	26
1995
01.04	50mi	16th American River 50 Mile Endurance Run	8:28:50 h	116
11.03	50km	6th Way Too Cool 50K Endurance Run	5:28:37 h	105
1994
09.09	100mi	15th Wasatch Front 100 Mile	29:18:08 h	42
20.08	100mi	12th Leadville Trail 100 Mile	29:23:37 h	137
23.07	100mi	6th Vermont 100 Mile Endurance Race	23:12:54 h	60
23.06	100mi	21st Western States 100 Mile Endurance Run	23:53:42 h	82
07.05	50mi	11th Quicksilver 50 Mile Endurance Run	9:55:52 h	32
02.04	50mi	15th American River 50 Mile Endurance Run	8:47:40 h	171
12.03	50km	5th Way Too Cool 50K Endurance Run	5:10:42 h	100
1993
26.06	100mi	20th Western States 100 Mile Endurance Run	23:08:48 h	32
08.05	50mi	10th Quicksilver 50 Mile Endurance Run	8:54:58 h	24
03.04	50mi	14th American River 50 Mile Endurance Run	8:22:29 h	104
13.03	50km	4th Way Too Cool 50K Endurance Run	5:21:17 h	94
1992
28.11	28mi	8th Quad Dipsea Trail Run	5:44:07 h	46
09.05	50mi	9th Quicksilver 50 Mile Endurance Run	8:51:42 h	6
04.04	50mi	13th American River 50 Mile Endurance Run	8:29:00 h	120
14.03	50km	3rd Way Too Cool 50K Endurance Run	5:18:58 h	95
08.02	50mi	14th Jed Smith Ultra Classic - 50 Mile Race	7:31:59 h	19
1991
30.11	28mi	7th Quad Dipsea Trail Run	6:03:39 h	67
27.07	100mi	3rd Vermont 100 Mile Endurance Race	16:57:00 h	7
06.04	50mi	12th American River 50 Mile Endurance Run	7:51:45 h	62
09.03	50km	2nd Way Too Cool 50K Endurance Run	4:45:35 h	23
1990
28.07	50mi	9th Minnesota Voyageur Trail 50 Mile Ultra	8:43:54 h	9
07.04	50mi	11th American River 50 Mile Endurance Run	7:19:49 h	33
1989
24.06	100mi	16th Western States 100 Mile Endurance Run	22:46:48 h	50
1987
27.06	100mi	14th Western States 100 Mile Endurance Run	23:09:24 h	45
28.03	52.4mi	The Forty-Niner Double Marathon Trail Run	8:18:38 h	24
1986
28.06	100mi	13th Western States 100 Mile Endurance Run	27:15:30 h	138
1983
05.11	50km	3rd Minnesota TAC 50 km	4:02:25 h	13
1981
03.05	100km	Great Mille Lacs 100 km	9:57:00 h	8
14.03	50mi	1st Minnesota TAC 50 Mile Championships	7:24:03 h	4
1980
01.06	100km	Great Mille Lacs 100 km	9:37:22 h	4

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	22/8/2009	27th Leadville Trail 100 Mile	160,93	×2
✓ 2	24/6/2006	33th Western States 100 Mile Endurance Run	160,93	×2
✓ 3	25/6/2005	32th Western States 100 Mile Endurance Run	160,93	×2
✓ 4	11/9/2004	25th Wasatch Front 100 Mile	160,93	×2
✓ 5	28/6/2003	30th Western States 100 Mile Endurance Run	160,93	×2
✓ 6	24/6/2000	27th Western States 100 Mile Endurance Run	160,93	×2
✓ 7	26/6/1999	26th Western States 100 Mile Endurance Run	160,93	×2
✓ 8	9/9/1994	15th Wasatch Front 100 Mile	160,93	×2
✓ 9	20/8/1994	12th Leadville Trail 100 Mile	160,93	×2
✓ 10	23/7/1994	6th Vermont 100 Mile Endurance Race	160,93	×2
✓ 11	23/6/1994	21st Western States 100 Mile Endurance Run	160,93	×2
✓ 12	26/6/1993	20th Western States 100 Mile Endurance Run	160,93	×2
✓ 13	27/7/1991	3rd Vermont 100 Mile Endurance Race	160,93	×2
✓ 14	24/6/1989	16th Western States 100 Mile Endurance Run	160,93	×2
✓ 15	27/6/1987	14th Western States 100 Mile Endurance Run	160,93	×2
✓ 16	28/6/1986	13th Western States 100 Mile Endurance Run	160,93	×2
✓ 17	30/4/2005	10th Miwok 100k Trail race	100,00	×1
✓ 18	24/2/2001	5th Catalina 100K Trail Run	100,00	×1
✓ 19	1/5/1999	4th Miwok 100k Trail race	100,00	×1
✓ 20	3/5/1981	Great Mille Lacs 100 km	100,00	×1
✓ 21	1/6/1980	Great Mille Lacs 100 km	100,00	×1
✓ 22	28/3/1987	The Forty-Niner Double Marathon Trail Run	84,33	×1
✓ 23	26/7/2009	2nd Leadville Silver Rush 50 Mile Run	80,47	×1
✓ 24	9/5/2009	26th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 25	2/5/2009	10th Collegiate Peaks 50 Miles	80,47	×1
✓ 26	17/1/2009	29th Avalon Benefit 50-Mile Run	80,47	×1
✓ 27	6/9/2008	6th Dances with Dirt - Hell 50M Ultra	80,47	×1
✓ 28	19/7/2008	7th Tahoe Rim Trail 50M Endurance Runs	80,47	×1
✓ 29	21/6/2008	14th San Juan Solstice 50 Mile Run	80,47	×1
✓ 30	20/5/2006	13th Bishop High Sierra Ultramarathons 50 Miles	80,47	×1
✓ 31	1/4/2006	27th American River 50 Mile Endurance Run	80,47	×1
✓ 32	4/6/2005	9th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 33	16/4/2005	3rd Diablo Endurance Run	80,47	×1
✓ 34	2/4/2005	26th American River 50 Mile Endurance Run	80,47	×1
✓ 35	14/8/2004	2nd Diablo Endurance Run	80,47	×1
✓ 36	15/5/2004	19th Silver State 50 Miles	80,47	×1
✓ 37	24/4/2004	15th Zane Grey Highline Trail 50 Mile	80,47	×1
✓ 38	3/4/2004	25th American River 50 Mile Endurance Run	80,47	×1
✓ 39	11/10/2003	21st Dick Collins Firetrails 50 Mile	80,47	×1
✓ 40	5/4/2003	24th American River 50 Mile Endurance Run	80,47	×1
✓ 41	12/10/2002	20th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 42	3/6/2000	4th Snow Peaks 50 Mile Trail Run	80,47	×1
✓ 43	8/1/2000	20th Avalon Benefit 50-Mile Run	80,47	×1
✓ 44	10/4/1999	20th American River 50 Mile Endurance Run	80,47	×1
✓ 45	10/10/1998	16th Dick Collins Firetrails 50 Mile	80,47	×1
✓ 46	17/8/1996	2nd Cameron Park 50 Mile	80,47	×1
✓ 47	1/4/1995	16th American River 50 Mile Endurance Run	80,47	×1
✓ 48	7/5/1994	11th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 49	2/4/1994	15th American River 50 Mile Endurance Run	80,47	×1
✓ 50	8/5/1993	10th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 51	3/4/1993	14th American River 50 Mile Endurance Run	80,47	×1
✓ 52	9/5/1992	9th Quicksilver 50 Mile Endurance Run	80,47	×1
✓ 53	4/4/1992	13th American River 50 Mile Endurance Run	80,47	×1
✓ 54	8/2/1992	14th Jed Smith Ultra Classic - 50 Mile Race	80,47	×1
✓ 55	6/4/1991	12th American River 50 Mile Endurance Run	80,47	×1
✓ 56	28/7/1990	9th Minnesota Voyageur Trail 50 Mile Ultra	80,47	×1
✓ 57	7/4/1990	11th American River 50 Mile Endurance Run	80,47	×1
✓ 58	14/3/1981	1st Minnesota TAC 50 Mile Championships	80,47	×1
✓ 59	4/9/2015	1st A Race for the Ages	80,47	×1
✓ 60	27/7/1996	4th White River 50 Mile Trail Run	76,60	×1
✓ 61	17/1/2010	5th The Ghost Town 38.5	61,96	—
62	27/8/2005	8th Tamalpa Headlands 50K	50,69	—
63	24/8/2002	5th Tamalpa Headlands 50K	50,69	—
64	18/6/2010	19th Bighorn Mountain Wild & Scenic 50km Trail Run	50,00	—
65	6/12/2009	23rd OTHTC High Desert 50K Ultra	50,00	—
66	14/2/2009	11th Pemberton Trail 50 km	50,00	—
67	6/12/2008	7th Woodside Trail Run 50K	50,00	—
68	10/5/2008	25th Quicksilver 50 km Endurance Run	50,00	—
69	19/5/2007	22nd Silver State 50 km	50,00	—
70	24/3/2007	2nd Antelope Island Buffalo Run 50 km	50,00	—
71	3/6/2006	17th Shadow of the Giants 50K	50,00	—
72	1/8/2004	23rd Skyline 50k Endurance Run	50,00	—
73	20/3/2004	2nd Rucky Chucky Roundabout 50K	50,00	—
74	9/8/2003	2nd Big Basin Redwoods Trail Run	50,00	—
75	3/8/2003	22nd Skyline 50k Endurance Run	50,00	—
76	19/7/2003	3rd Tahoe Rim Trail 50km Endurance Runs	50,00	—
77	7/6/2003	14th Shadow of the Giants 50K	50,00	—
78	19/5/2002	15th Ohlone 50K Wilderness Run	50,00	—
79	17/3/2001	15th Crown King Scramble 50K	50,00	—
80	21/5/2000	13th Ohlone 50K Wilderness Run	50,00	—
81	11/12/1999	3rd Hunter S. Thompson Fear & Loathing 50 km	50,00	—
82	7/8/1999	18th Skyline 50k Endurance Run	50,00	—
83	16/5/1999	12th Ohlone 50K Wilderness Run	50,00	—
84	13/3/1999	10th Way Too Cool 50K Endurance Run	50,00	—
85	1/8/1998	17th Skyline 50k Endurance Run	50,00	—
86	11/3/1995	6th Way Too Cool 50K Endurance Run	50,00	—
87	12/3/1994	5th Way Too Cool 50K Endurance Run	50,00	—
88	13/3/1993	4th Way Too Cool 50K Endurance Run	50,00	—
89	14/3/1992	3rd Way Too Cool 50K Endurance Run	50,00	—
90	9/3/1991	2nd Way Too Cool 50K Endurance Run	50,00	—
91	5/11/1983	3rd Minnesota TAC 50 km	50,00	—
92	29/11/2003	19th Quad Dipsea Trail Run	45,06	—
93	28/11/1998	14th Quad Dipsea Trail Run	45,06	—
94	28/11/1992	8th Quad Dipsea Trail Run	45,06	—
95	30/11/1991	7th Quad Dipsea Trail Run	45,06	—