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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Grebenstein, Ken   Submit Personal Website Send Link 
Club:  
Residence: Corte Madera, CA
Year of birth: 1953 (Cat. german: M70)
Date of birth: 00.00.0000 (Cat. internat.: M70)
Nationality: USA USA United States
RunnerID: 68604
 

23 search results (23 Events, 1469.042 km).  (More)

2003 5 Events, 442.095 km  (More)
23.08.2003 Tamalpa Headlands 50K (USA) 31.5mi
5:26:58 h Grebenstein, Ken   Overall: 53 M: 46 Cat M45: 5
28.-29.06.2003 Western States 100 Mile Endurance Run (USA) 100mi
23:05:57 h Grebenstein, Ken *Corte Madera, CA  Overall: 66 M: 55 Cat M45: 11
03.05.2003 Miwok 100k Trail race (USA) 100km
10:28:44 h Grebenstein, Ken *Corte Madera, CA  Overall: 16 M: 16 Cat M45: 3
05.04.2003 American River 50 Mile Endurance Run (USA) 50mi
7:23:11 h Grebenstein, Ken   Overall: 28 M: 25 Cat M45: 2
08.03.2003 Way Too Cool 50K Endurance Run (USA) 50km
4:21:29 h Grebenstein, Ken   Overall: 42 M: 39 Cat M45: 7
2002 6 Events, 326.222 km  (More)
30.11.2002 Quad Dipsea Trail Run (USA) 28mi
5:06:42 h Grebenstein, Ken   Overall: 29 M: 27 Cat M45: 3
24.08.2002 Tamalpa Headlands 50K (USA) 31.5mi
5:11:14 h Grebenstein, Ken   Overall: 50 M: 44 Cat M45: 3
19.05.2002 Ohlone 50K Wilderness Run (USA) 50km
5:34:25 h Grebenstein, Ken   Overall: 8 M: 8 Cat M45: 1
06.04.2002 American River 50 Mile Endurance Run (USA) 50mi
8:02:13 h Grebenstein, Ken   Overall: 51 M: 42 Cat M45: 9
09.03.2002 Way Too Cool 50K Endurance Run (USA) 50km
4:29:36 h Grebenstein, Ken   Overall: 42 M: 40 Cat M45: 5
09.02.2002 Jed Smith Ultra Classic - 50 Km Race (USA) 50km
3:48:21 h Grebenstein, Ken   Overall: 7 M: 6 Cat M45: 2
2001 2 Events, 131.161 km  (More)
25.08.2001 Tamalpa Headlands 50K (USA) 31.5mi
5:02:31 h Grebenstein, Ken   Overall: 22 M: 20 Cat M45: 3
07.04.2001 American River 50 Mile Endurance Run (USA) 50mi
7:55:43 h Grebenstein, Ken   Overall: 43 M: 39 Cat M45: 5
2000 3 Events, 180.467 km  (More)
05.08.2000 Skyline 50k Endurance Run (USA) 50km
4:48:04 h Grebenstein, Ken   Overall: 23 M: 22 Cat M45: 3
01.04.2000 American River 50 Mile Endurance Run (USA) 50mi
7:56:45 h Grebenstein, Ken   Overall: 28 M: 25 Cat M45: 5
12.02.2000 Jed Smith Ultra Classic - 50 Km Race (USA) 50km
3:54:02 h Grebenstein, Ken   Overall: 12 M: 10 Cat M45: 3
1999 1 Event, 50.694 km  (More)
28.08.1999 Tamalpa Headlands 50K (USA) 31.5mi
5:12:35 h Grebenstein, Ken   Overall: 19 M: 18 Cat M45: 3
1998 1 Event, 50 km  (More)
01.08.1998 Skyline 50k Endurance Run (USA) 50km
6:07:48 h Grebenstein, Ken   Overall: 107 M: 85 Cat M40: 19
1997 1 Event, 50 km  (More)
06.09.1997 Point Reyes 50K (USA) 50km
5:14:11 h Grebenstein, Ken   Overall: 32 M: 29 Cat M40: 3
1996 1 Event, 50 km  (More)
03.08.1996 Skyline 50k Endurance Run (USA) 50km
4:35:56 h Grebenstein, Ken   Overall: 17 M: 16 Cat M40: 2
1985 1 Event, 50 km  (More)
04.08.1985 Skyline 50k Endurance Run (USA) 50km
4:31:11 h Grebenstein, Ken   Overall: 39 M: 39 Cat M23: 15
1981 1 Event, 57.936 km  (More)
09.08.1981 Two Bridges 36 Mile Run (USA) 36mi
4:18:00 h Grebenstein, Ken *NY    Overall: 4 M: 4 Cat M23: 3
1980 1 Event, 80.467 km  (More)
11.10.1980 Metropolitan 50 Mile Race (USA) 50mi
6:31:40 h Grebenstein, Ken   Overall: 12 M: 12 Cat M23: 8

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 2003 2002 2001 2000 1999 1998 1997 1996 1985 1981 1980
50km 3:48:21  
3:48:21
(455/33) 		 
3:54:02
(536/58) 		 
 
 
 
 
 
 
50mi 6:31:40  
 
 
 
 
 
 
 
 
 
6:31:40
 

Comparison table

Comparison of performances in races with multiple participations

   2003 2002 2001 2000 1999 1998 1997 1996 1985 1981 1980
Tamalpa Headlands 50K 4 5:26:58 5:11:14 5:02:31   5:12:35            
Skyline 50k Endurance Run 4       4:48:04   6:07:48   4:35:56 4:31:11    
American River 50 Mile Endurance Run 4 7:23:11 8:02:13 7:55:43 7:56:45              
Way Too Cool 50K Endurance Run 2 4:21:29 4:29:36                  
Jed Smith Ultra Classic - 50 Km Race 2   3:48:21   3:54:02