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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Semanski, Derek   Submit Personal Website Send Link 
Club:  
Residence: Rocklin, CA
Year of birth: 1971 (Cat. german: M55)
Date of birth: 00.00.0000 (Cat. internat.: M50)
Nationality: USA USA United States
RunnerID: 35078
 

18 search results (18 Events, 1393.073 km).  (More)

2010 4 Events, 341.401 km  (More)
26.-27.06.2010 Western States 100 Mile Endurance Run (USA) 100mi
23:43:04 h Semanski, Derek *Rocklin CA  Overall: 109 M: 90 Cat M35: 19
15.05.2010 Silver State 50 km (USA) 50km
5:21:31 h Semanski, Derek *Rocklin, CA  Overall: 16 M: 13 Cat M35: 5
27.03.2010 Lake Sonoma 50 Mile Race (USA) 50mi
9:45:18 h Semanski, Derek *Rocklin, CA  Overall: 33 M: 27 Cat M35: 11
06.02.2010 Woodside Trail Run 50K (USA) 50km
6:15:55 h Semanski, Derek *Rocklin, CA  Overall: 63 M: 50 Cat M35: 13
2009 3 Events, 291.401 km  (More)
27.-28.06.2009 Western States 100 Mile Endurance Run (USA) 100mi
27:26:55 h Semanski, Derek *Rocklin CA  Overall: 122 M: 106 Cat M35: 30
19.04.2009 Diablo Endurance Run (USA) 50mi
12:13:07 h Semanski, Derek *Rocklin, CA  Overall: 30 M: 25 Cat M35: 11
14.03.2009 Way Too Cool 50K Endurance Run (USA) 50km
5:16:37 h Semanski, Derek *Rocklin, CA  Overall: 150 M: 120 Cat M35: 42
2007 6 Events, 441.401 km  (More)
02.09.2007 Run On The Sly 50 Km (USA) 50km
5:53:23 h Semanski, Derek   Overall: 23 M: 20 Cat M35: 4
23.-24.06.2007 Western States 100 Mile Endurance Run (USA) 100mi
24:32:12 h Semanski, Derek *Rocklin, CA  Overall: 105 M: 88 Cat M35: 26
19.05.2007 Silver State 50 km (USA) 50km
6:56:18 h Semanski, Derek *Rocklin CA  Overall: 19 M: 15 Cat M35: 6
14.04.2007 American River 50 Mile Endurance Run (USA) 50mi
9:43:01 h Semanski, Derek *Rocklin, CA  Overall: 204 M: 161 Cat M35: 34
10.03.2007 Way Too Cool 50K Endurance Run (USA) 50km
5:54:03 h Semanski, Derek   Overall: 236 M: 173 Cat M35: 41
03.02.2007 Jed Smith Ultra Classic - 50 Km Race (USA) 50km
5:31:36 h Semanski, Derek *Rocklin CA  Overall: 56 M: 47 Cat M35: 10
2006 3 Events, 188.403 km  (More)
14.10.2006 Lake of the Sky 32 Mile (USA) 32.8mi
7:18:38 h Semanski, Derek *Rocklin, CA  Overall: 18 M: 16 Cat M23: 6
23.09.2006 Sierra Nevada Endurance 53 Mile Run (USA) 53.2mi
11:15:35 h Semanski, Derek *CA  Overall: 13 M: 11 Cat M23: 2
15.-16.07.2006 Tahoe Rim Trail 50km Endurance Runs (USA) 50km
7:10:33 h Semanski, Derek *Rocklin, CA  Overall: 37 M: 30 Cat M23: 10
2005 2 Events, 130.467 km  (More)
02.04.2005 American River 50 Mile Endurance Run (USA) 50mi
8:45:57 h Semanski, Derek *CA  Overall: 86 M: 69 Cat M23: 19
12.03.2005 Way Too Cool 50K Endurance Run (USA) 50km
5:58:10 h Semanski, Derek   Overall: 211 M: 151 Cat M23: 20

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 2010 2009 2007 2006 2005
50km 5:31:36  
 
5:31:36
(3725/379) 		 
 

Comparison table

Comparison of performances in races with multiple participations

   2010 2009 2007 2006 2005
Way Too Cool 50K Endurance Run 3   5:16:37 5:54:03   5:58:10
Western States 100 Mile Endurance Run 3 23:43:04 27:26:55 24:32:12    
Silver State 50 km 2 5:21:31   6:56:18    
American River 50 Mile Endurance Run 2     9:43:01   8:45:57