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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Koo, Brian   Submit Personal Website Send Link 
Club:  
Residence: Castro Valley, CA
Year of birth: 1948 (Cat. german: M75)
Date of birth: 00.00.0000 (Cat. internat.: M75)
Nationality: USA USA United States
RunnerID: 106303
 

18 search results (18 Events, 991.401 km).  (More)

2012 1 Event, 50 km  (More)
21.03.2012 Diablo Trails Challenge (USA) 50km
8:10:59 h Koo, Brian   Overall: 62 M: 48 Cat M60: 3
2011 1 Event, 50 km  (More)
19.03.2011 Diablo Trails Challenge (USA) 50km
7:29:30 h Koo, Brian *Castro Valley, CA  Overall: 29 M: 26 Cat M60: 2
2010 1 Event, 80.467 km  (More)
09.10.2010 Dick Collins Firetrails 50 Mile (USA) 50mi
10:17:48 h Koo, Brian *CA  Overall: 119 M: 104 Cat M60: 1
2009 2 Events, 100 km  (More)
02.08.2009 Skyline 50k Endurance Run (USA) 50km
5:48:12 h Koo, Brian   Overall: 68 M: 55 Cat M60: 4
22.03.2009 Diablo Trails Challenge (USA) 50km
7:06:32 h Koo, Brian *Castro Valley, CA  Overall: 17 M: 12 Cat M60: 1
2008 3 Events, 180.467 km  (More)
03.08.2008 Skyline 50k Endurance Run (USA) 50km
5:30:26 h Koo, Brian   Overall: 44 M: 37 Cat M55: 1
18.05.2008 Ohlone 50K Wilderness Run (USA) 50km
8:14:26 h Koo, Brian   Overall: 81 M: 68 Cat M55: 3
05.04.2008 American River 50 Mile Endurance Run (USA) 50mi
8:45:46 h Koo, Brian *Castro Valley, CA  Overall: 98 M: 86 Cat M55: 2
2007 4 Events, 230.467 km  (More)
13.10.2007 Dick Collins Firetrails 50 Mile (USA) 50mi
9:25:53 h Koo, Brian *Castro Valley, CA  Overall: 59 M: 51 Cat M55: 1
05.08.2007 Skyline 50k Endurance Run (USA) 50km
4:54:13 h Koo, Brian   Overall: 21 M: 18 Cat M55: 2
20.05.2007 Ohlone 50K Wilderness Run (USA) 50km
6:35:43 h Koo, Brian   Overall: 46 M: 40 Cat M55: 2
17.02.2007 Sequoia Trail Run (USA) 50km
6:10:43 h Koo, Brian *Castro Valley, CA  Overall: 20 M: 16 Cat M55: 1
2006 1 Event, 50 km  (More)
21.05.2006 Ohlone 50K Wilderness Run (USA) 50km
6:14:40 h Koo, Brian   Overall: 27 M: 24 Cat M55: 1
2005 1 Event, 50 km  (More)
22.05.2005 Ohlone 50K Wilderness Run (USA) 50km
6:48:49 h Koo, Brian   Overall: 36 M: 32 Cat M55: 1
2002 1 Event, 50 km  (More)
04.08.2002 Skyline 50k Endurance Run (USA) 50km
4:51:07 h Koo, Brian   Overall: 16 M: 14 Cat M50: 2
2001 1 Event, 50 km  (More)
05.08.2001 Skyline 50k Endurance Run (USA) 50km
4:54:29 h Koo, Brian   Overall: 34 M: 33 Cat M50: 3
2000 1 Event, 50 km  (More)
05.08.2000 Skyline 50k Endurance Run (USA) 50km
4:43:33 h Koo, Brian   Overall: 19 M: 19 Cat M50: 2
1999 1 Event, 50 km  (More)
07.08.1999 Skyline 50k Endurance Run (USA) 50km
4:46:15 h Koo, Brian   Overall: 28 M: 27 Cat M50: 1

Personal bests

Your list of personal best performances only contains performances of races which can be included into rankings.

In brackets rank in yearly international/national rankings.

 PB 2012 2011 2010 2009 2008 2007 2006 2005 2002 2001 2000 1999

Comparison table

Comparison of performances in races with multiple participations

   2012 2011 2010 2009 2008 2007 2006 2005 2002 2001 2000 1999
Skyline 50k Endurance Run 7       5:48:12 5:30:26 4:54:13     4:51:07 4:54:29 4:43:33 4:46:15
Ohlone 50K Wilderness Run 4         8:14:26 6:35:43 6:14:40 6:48:49        
Diablo Trails Challenge 3 8:10:59 7:29:30   7:06:32                
Dick Collins Firetrails 50 Mile 2     10:17:48     9:25:53