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Marathon Deutsche Weinstraße 2026   HaWei50 50km Ultralauf 28.2.2026   3h, 6h, 12h, 24h of Santander  
Name: Davidson, Robert M.   Submit Personal Website Send Link 
Club:  
Residence: AZ
Year of birth: 1955 (Cat. german: M70)
Date of birth: 00.00.0000 (Cat. internat.: M70)
Nationality: USA USA United States
RunnerID: 29143
 

23 search results (19 Events, 2042.327 km).  (More)

1993 1 Event, 50 km  (More)
15.05.1993 Zane Grey Highline Trail 50 Km (USA) 50km
7:01:45 h Davidson, Robert M. *AZ  Overall: 13 M: 10 Cat M35: 3
1991 1 Event, 80.467 km  (More)
27.04.1991 Zane Grey Highline Trail 50 Mile (USA) 50mi
13:03:00 h Davidson, Robert M. *AZ  Overall: 13 M: 11 Cat M35: 3
1990 1 Event, 81.6 km  (More)
31.12.1990-01.01.1991 Across the Years, 24h (USA) 24h
81.600 km Davidson, Robert M.   Overall: 14 M: 14 Cat M35: 4
1989 3 Events, 350.601 km  (More)
31.12.1989-01.01.1990 Across the Years, 24h (USA) 24h
109.200 km Davidson, Robert M.   Overall: 14 M: 12 Cat M23: 4
30.09.-01.10.1989 Angeles Crest 100 Mile (USA) 100mi
31:53:41 h Davidson, Robert M. *AZ  Overall: 69 M: 62 Cat M23: 12
09.04.1989 Mad Dog 50 Mile (USA) 50mi
13:47:00 h Davidson, Robert M.   Overall: 17 M: 15 Cat M23: 3
1988 2 Events, 260.067 km  (More)
30.12.1988-01.01.1989 Across the Years, 48h (USA) 48h
179.600 km Davidson, Robert M.   Overall: 9 M: 8 Cat M23: 3
10.04.1988 Mad Dog 50 Mile (USA) 50mi
10:06:30 h Davidson, Robert M.   Overall: 9 M: 8 Cat M23: 3
1986 2 Events, 160.934 km  (More)
14.12.1986 Palm Springs Fifty (USA) 50mi
9:52:13 h Davidson, Robert M.   Overall: 31 M: 30 Cat M23: 6
02.03.1986 Four Peaks Fifty Run (USA) 50mi
12:33:00 h Davidson, Robert M.   Overall: 9 M: 6 Cat M23: 1
1985 1 Event, 100 km  (More)
14.09.1985 RUN Winschoten 100 km (NED) 100km
10:54:33 h Davidson, Robert M.   Overall: 93 M: 90 Cat M23: 15
1984 3 Events, 354.252 km  (More)
31.12.1984-01.01.1985 Across the Years, 24h (USA) 24h
104.000 km Davidson, Robert M.   Overall: 13 M: 12 Cat M23: 3
31.12.1984-01.01.1985 Across the Years, 24h - 50mi Split (USA) 50mi
9:00:58 h Davidson, Robert M.   Overall: 6 M: 5 Cat M23: 2
31.12.1984-01.01.1985 Across the Years, 24h - 100km Split (USA) 100km
13:48:32 h Davidson, Robert M.   Overall: 10 M: 9 Cat M23: 2
27.-28.10.1984 No Bullshit 24 hour Run (USA) 24h
169.785 km Davidson, Robert M. *AZ  Overall: 4 M: 5 Cat M23: 2
04.03.1984 Four Peaks Fifty Run (USA) 50mi
10:16:15 h Davidson, Robert M.   Overall: 36 M: 35 Cat M23: 13
1983 4 Events, 544.056 km  (More)
31.12.1983-01.01.1984 Across the Years, 24h - 100km Split (USA) 100km
13:41:54 h Davidson, Robert M.   Overall: 8 M: 8 Cat M23: 5
31.12.1983-01.01.1984 Across the Years, 24h (USA) 24h
120.800 km Davidson, Robert M.   Overall: 11 M: 8 Cat M23: 5
31.12.1983 Across the Years, 24h - 50mi Split (USA) 50mi
8:53:19 h Davidson, Robert M.   Overall: 6 M: 6 Cat M23: 5
29.-30.10.1983 No Bullshit 24 hour Run (USA) 24h
137.196 km Davidson, Robert M. *AZ  Overall: 13 M: 13 Cat M23: 5
01.-03.07.1983 48 Hour Run, Walk or Crawl Pedestrian Race (USA) 48h
205.593 km Davidson, Robert M.   Overall: 6 M: 5 Cat M23: 1
06.03.1983 Four Peaks Fifty Run (USA) 50mi
11:41:50 h Davidson, Robert M.   Overall: 25 M: 24 Cat M23: 13
1981 1 Event, 60.35 km  (More)
26.07.1981 Haleakala Run to the Sun (USA) 37.5mi
7:14:29 h Davidson, Robert M.   Overall: 25 M: 24 Cat M23: 9

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 1993 1991 1990 1989 1988 1986 1985 1984 1983 1981
50mi 8:53:19  
 
 
 
 
 
 
9:00:58
  		8:53:19
  		 
100km 13:41:54  
 
 
 
 
 
 
13:48:32
  		13:41:54
  		 
24h 120.800  
 
81.600
  		109.200
  		 
 
 
104.000
  		120.800
  		 
48h 205.593  
 
 
 
179.600
  		 
 
 
205.593
  		 

Comparison table

Comparison of performances in races with multiple participations

   1993 1991 1990 1989 1988 1986 1985 1984 1983 1981
Across the Years, 24h 4     81.600 109.200       104.000 120.800  
Four Peaks Fifty Run 3           12:33:00   10:16:15 11:41:50  
Mad Dog 50 Mile 2       13:47:00 10:06:30          
No Bullshit 24 hour Run 2               169.785 137.196