Matthew Grinnell (M45)
2026
1 Race | 31 mi.Mid-Maryland Ultra
Mar 7th 2026
| Elkridge, MD
Distance
50 KM
Overall
40
/ 57
Division (M)
35
/ 48
6:35:39
2025
2 Races | 62 mi.Patapsco Valley 50K
Oct 25th 2025
| Baltimore, MD
Distance
50 KM
Overall
124
/ 179
Division (M)
98
/ 128
7:54:28
Mid-Maryland Ultra
Jan 4th 2025
| Elkridge, MD
Distance
50 KM
Overall
37
/ 62
Division (M)
29
/ 47
6:12:36
2017
3 Races | 133 mi.Stone Mill 50M
Nov 11th 2017
| Montgomery Village, MD
Distance
50 Miles
Overall
52
/ 252
Division (M)
41
/ 174
10:07:58
Patapsco Valley 50K
Oct 28th 2017
| Baltimore, MD
Distance
50 KM
Overall
56
/ 245
Division (M)
46
/ 148
6:27:59
12 Hour - Adventure Trail Run
Sep 16th 2017
| Triangle, VA
Duration
12 Hours
Overall
9
/ 81
Division (M)
7
/ 42
52
2016
3 Races | 112 mi.Stone Mill 50M
Nov 12th 2016
| Montgomery Village, MD
Distance
50 Miles
Overall
26
/ 211
Division (M)
23
/ 153
9:21:34
Patapsco Valley 50K
Oct 22nd 2016
| Baltimore, MD
Distance
50 KM
Overall
27
/ 214
Division (M)
25
/ 137
5:24:59
Mid-Maryland Ultra
Feb 13th 2016
| Elkridge, MD
Distance
50 KM
Overall
13
/ 65
Division (M)
11
/ 47
5:30:41
2015
3 Races | 112 mi.Patapsco Valley 50K
Oct 24th 2015
| Baltimore, MD
Distance
50 KM
Overall
33
/ 211
Division (M)
31
/ 145
5:47:16
OSS/CIA
Jun 13th 2015
| Triangle, VA
Distance
50 Miles
Overall
17
/ 29
Division (M)
16
/ 23
12:18:19
The North Face Endurance Challenge Washi...
Apr 18th 2015
| Washington DC, DC
Distance
50 KM
Overall
69
/ 396
Division (M)
60
/ 255
5:43:52
2014
1 Race | 50 mi.JFK
Nov 22nd 2014
| Boonsboro, MD
Distance
50 Miles
Overall
253
/ 808
Division (M)
202
/ 594
9:21:45
13
Races
11y 3m 18d
Longevity
501
Lifetime Miles
Personal Bests
50k
(8)
5:24:59
2016
50m
(4)
9:21:34
2016
12hr
(1)
52
2017
Distance by Year
2026
31
Miles
1 Race
2025
62
Miles
2 Races
2017
133
Miles
3 Races
2016
112
Miles
3 Races
2015
112
Miles
3 Races
2014
50
Miles
1 Race