Sean O'Brien (M63)
2023
2 Races | 81 mi.Marquette Trail 50
Aug 19th 2023
| Marquette, MI
Distance
50 KM
Overall
149
/ 273
Division (M)
106
/ 156
8:54:52
Sean O'Brien 100k/50M/50k
Jan 28th 2023
| Malibu, CA
Distance
50 Miles
Overall
22
/ 67
Division (M)
20
/ 44
11:37:19
2022
3 Races | 93 mi.Ray Miller 50/50
Dec 3rd 2022
| Malibu, CA
Distance
50 KM
Overall
9
/ 104
Division (M)
8
/ 60
5:34:19
SAMO Trail Runs
Oct 22nd 2022
| Pacific Palisades, CA
Distance
50 KM
Overall
11
/ 85
Division (M)
11
/ 55
5:26:12
Leona Divide
Apr 23rd 2022
| Lake Hughes, CA
Distance
50 KM
Overall
18
/ 109
Division (M)
15
/ 62
5:35:30
2021
1 Race | 31 mi.Marquette Trail 50
Aug 21st 2021
| Marquette, MI
Distance
50 KM
Overall
147
/ 193
Division (M)
78
/ 94
10:17:51
2019
1 Race | 35 mi.Santa Barbara Nine Trails
Mar 23rd 2019
| Santa Barbara, CA
Distance
35 Miles
Overall
70
/ 178
Division (M)
58
/ 127
8:31:46
2018
1 Race | 50 mi.Sean O'Brien 100k/50M/50k
Feb 3rd 2018
| Malibu, CA
Distance
50 Miles
Overall
24
/ 110
Division (M)
14
/ 75
11:03:59
2017
1 Race | 31 mi.Whoos in El Moro - Spring
May 13th 2017
| Newport Beach, CA
Distance
50 KM
Overall
5
/ 67
Division (M)
4
/ 43
4:53:08
2016
1 Race | 50 mi.Sean O'Brien 100k/50M/50k
Feb 6th 2016
| Malibu, CA
Distance
50 Miles
Overall
7
/ 62
Division (M)
5
/ 36
9:43:07
2015
5 Races | 255 mi.Miwok
May 2nd 2015
| Stinson Beach, CA
Distance
100 KM
Overall
99
/ 308
Division (M)
83
/ 227
12:43:00
Leona Divide
Apr 18th 2015
| Lake Hughes, CA
Distance
50 Miles
Overall
21
/ 129
Division (M)
18
/ 95
9:27:37
Old Goat
Mar 21st 2015
| Lake Elsinore, CA
Distance
50 KM
Overall
1
/ 17
Division (M)
1
/ 11
5:54:25
Sean O'Brien 100k/50M/50k
Feb 7th 2015
| Malibu, CA
Distance
100 KM
Overall
53
/ 93
Division (M)
42
/ 69
13:35:14
Avalon Benefit 50
Jan 10th 2015
| Avalon, CA
Distance
50 Miles
Overall
27
/ 209
Division (M)
26
/ 146
8:34:58
2013
2 Races | 87 mi.Miwok
May 4th 2013
| Stinson Beach, CA
Distance
60 KM
Overall
16
/ 349
Division (M)
16
/ 243
5:49:18
Ray Miller 50/50
Feb 2nd 2013
| Malibu, CA
Distance
50 Miles
Overall
18
/ 95
Division (M)
16
/ 73
9:11:46
2011
6 Races | 243 mi.Santa Monica Mountains
Nov 20th 2011
| Malibu, CA
Distance
50 KM
Overall
12
/ 69
Division (M)
9
/ 53
5:33:50
Mt. Disappointment Mountain Race
Aug 13th 2011
| Sierra Madre, CA
Distance
50 KM
Overall
5
/ 123
Division (M)
4
/ 85
5:23:15
Leona Divide
Apr 30th 2011
| Lake Hughes, CA
Distance
50 Miles
Overall
14
/ 231
Division (M)
11
/ 176
8:15:37
Old Goat
Mar 26th 2011
| Lake Elsinore, CA
Distance
50 Miles
Overall
8
/ 96
Division (M)
7
/ 79
9:16:54
Bandit Ultra Trail Run
Feb 20th 2011
| Simi Valley, CA
Distance
50 KM
Overall
5
/ 49
Division (M)
5
/ 44
5:10:50
Avalon Benefit 50
Jan 15th 2011
| Avalon, CA
Distance
50 Miles
Overall
9
/ 222
Division (M)
8
/ 160
7:36:01
2010
6 Races | 224 mi.Santa Monica Mountains
Nov 21st 2010
| Malibu, CA
Distance
50 KM
Overall
4
/ 70
Division (M)
4
/ 50
5:03:58
Bulldog 50K Ultra Run & 25K Trail Run
Aug 21st 2010
| Calabasas, CA
Distance
50 KM
Overall
5
/ 198
Division (M)
5
/ 133
4:29:27
Montana de Oro
Aug 15th 2010
| Los Osos, CA
Distance
50 KM
Overall
2
/ 44
Division (M)
2
/ 30
4:46:28
Leona Divide
Apr 17th 2010
| Lake Hughes, CA
Distance
50 Miles
Overall
23
/ 154
Division (M)
18
/ 116
8:47:55
Malibu Creek
Mar 7th 2010
| Malibu, CA
Distance
50 KM
Overall
5
/ 63
Division (M)
5
/ 43
4:55:57
Avalon Benefit 50
Jan 16th 2010
| Avalon, CA
Distance
50 Miles
Overall
5
/ 158
Division (M)
5
/ 104
7:25:31
2009
7 Races | 274 mi.Over The Hill Track Club High Desert 50K
Dec 6th 2009
| Ridgecrest, CA
Distance
50 KM
Overall
22
/ 226
Division (M)
19
/ 153
4:24:42
Santa Monica Mountains
Nov 22nd 2009
| Malibu, CA
Distance
50 KM
Overall
4
/ 72
Division (M)
4
/ 54
4:52:54
Mt. Disappointment Mountain Race
Aug 8th 2009
| Sierra Madre, CA
Distance
50 Miles
Overall
3
/ 71
Division (M)
3
/ 56
8:12:49
Tahoe Rim Trail
Jul 18th 2009
| Carson City, NV
Distance
50 Miles
Overall
5
/ 96
Division (M)
4
/ 65
9:51:18
Sycamore Canyon
Mar 29th 2009
| Malibu, CA
Distance
50 KM
Overall
3
/ 56
Division (M)
3
/ 42
4:34:52
Malibu Creek
Mar 8th 2009
| Malibu, CA
Distance
50 KM
Overall
2
/ 60
Division (M)
2
/ 45
4:55:23
Avalon Benefit 50
Jan 17th 2009
| Avalon, CA
Distance
50 Miles
Overall
4
/ 160
Division (M)
3
/ 107
8:03:20
2008
7 Races | 343 mi.Santa Monica Mountains
Nov 23rd 2008
| Malibu, CA
Distance
50 KM
Overall
5
/ 60
Division (M)
5
/ 42
4:50:00
Angeles Crest
Sep 13th 2008
| Wrightwood, CA
Distance
100 Miles
Overall
31
/ 98
Division (M)
28
/ 86
27:07
Bulldog 50K Ultra Run & 25K Trail Run
Aug 23rd 2008
| Calabasas, CA
Distance
50 KM
Overall
4
/ 139
Division (M)
4
/ 100
4:19:42
Mt. Disappointment Mountain Race
Aug 9th 2008
| Sierra Madre, CA
Distance
50 Miles
Overall
4
/ 78
Division (M)
4
/ 64
9:07:42
Silver Rush 50
Jul 19th 2008
| Leadville, CO
Distance
50 Miles
Overall
45
/ 116
Division (M)
37
/ 86
10:30:09
Bishop High Sierra
May 17th 2008
| Bishop, CA
Distance
50 Miles
Overall
6
/ 78
Division (M)
6
/ 62
9:13:27
Malibu Creek
Apr 6th 2008
| Malibu, CA
Distance
50 KM
Overall
6
/ 43
Division (M)
6
/ 33
4:53:27
2007
1 Race | 31 mi.Mt. Disappointment Mountain Race
Aug 11th 2007
| Sierra Madre, CA
Distance
50 KM
Overall
5
/ 144
Division (M)
4
/ 101
5:26:18
2006
3 Races | 181 mi.Angeles Crest
Sep 16th 2006
| Wrightwood, CA
Distance
100 Miles
Overall
51
/ 81
Division (M)
43
/ 69
30:19:00
Mt. Disappointment Mountain Race
Aug 12th 2006
| Sierra Madre, CA
Distance
50 KM
Overall
3
/ 136
Division (M)
3
/ 105
4:57:51
White River 50
Jul 29th 2006
| Crystal Mountain, WA
Distance
50 Miles
Overall
55
/ 124
Division (M)
49
/ 99
9:48:09
47
Races
17y 0m 25d
Longevity
2,011
Lifetime Miles
Personal Bests
50k
(23)
4:19:42
2008
50m
(18)
7:25:31
2010
100k
(2)
12:43:00
2015
100m
(2)
27:07:00
2008
Distance by Year
2023
81
Miles
2 Races
2022
93
Miles
3 Races
2021
31
Miles
1 Race
2019
35
Miles
1 Race
2018
50
Miles
1 Race
2017
31
Miles
1 Race
2016
50
Miles
1 Race
2015
255
Miles
5 Races
2013
87
Miles
2 Races
2011
243
Miles
6 Races
2010
224
Miles
6 Races
2009
274
Miles
7 Races
2008
343
Miles
7 Races
2007
31
Miles
1 Race
2006
181
Miles
3 Races
Multiple Performances
Grand Master Course Record
5:26:12
50 KM
Grand Master Course Record
5:49:18
60 KM
Masters Winner
5:33:50
50 KM
Masters Winner
5:03:58
50 KM
Masters Winner
4:29:27
50 KM
Masters Winner
4:46:28
50 KM
2nd Place
4:46:28
50 KM
Masters Winner
4:55:57
50 KM
Masters Winner
8:12:49
50 Miles
3rd Place
8:12:49
50 Miles
Masters Winner
4:34:52
50 KM
3rd Place
4:34:52
50 KM
2nd Place
4:55:23
50 KM
Masters Winner
4:55:23
50 KM
3rd Place
8:03:20
50 Miles
Masters Winner
8:03:20
50 Miles
Masters Winner
4:50:00
50 KM
3rd Place
4:57:51
50 KM
Masters Winner
4:57:51
50 KM
Achievements are awarded for races with 25 or more finishers and courses with 200 or more finishers.
Masters: 40-49 / Grand Masters: 50-59 / Senior Grand Masters: 60+