Jack Rosenfeld (M 44)

2023

3 Races | 361 mi.

The Golden 6 Hour

Oct 14th 2023
| Liberty, WA
Duration
6 Hours
Overall
56 / 13
Division (F)
43 / 67
20.8

Cowboy 200

Sep 15th 2023
| Norfolk, NE
Distance
200 Miles
Overall
28 / 31
Division (M)
22 / 24
81:58:41

Born to Run Ultra Marathons

Apr 12th 2023
| Los Olivos, CA
Duration
96 Hours
Overall
17 / 61
Division (M)
13 / 38
140

2022

1 Race | 31 mi.

Teanaway Country 100 & Teeney-Way 50K

Sep 17th 2022
| Cle Elum, WA
Distance
50 KM
Overall
57 / 62
Division (M)
36 / 39
14:05:00

2018

2 Races | 67 mi.

Born to Run Ultra Marathons

May 19th 2018
| Los Olivos, CA
Distance
30 Miles
Overall
65 / 173
Division (M)
42 / 98
5:47:46

Cottontail 6 & 12 Hour

Apr 14th 2018
| Seattle, WA
Duration
12 Hours
Overall
8 / 10
Division (M)
6 / 8
36.67

2017

3 Races | 111 mi.

West Seattle Beach Run - Summer

Jul 23rd 2017
| Seattle, WA
Distance
50 KM
Overall
6 / 11
Division (M)
4 / 6
5:57:50

Rainier to Ruston

Jun 3rd 2017
| Tacoma, WA
Distance
50 Miles
Overall
36 / 47
Division (M)
27 / 34
11:44:36

Born to Run Ultra Marathons

May 20th 2017
| Los Olivos, CA
Distance
30 Miles
Overall
126 / 160
Division (M)
66 / 78
10:25:26

2016

1 Race | 41 mi.

Cottontail 6 & 12 Hour

Mar 26th 2016
| Seattle, WA
Duration
12 Hours
Overall
4 / 9
Division (M)
2 / 5
41.07

2015

4 Races | 142 mi.

Over The Hill Track Club High Desert 50K

Dec 6th 2015
| Ridgecrest, CA
Distance
50 KM
Overall
123 / 214
Division (M)
89 / 135
6:25:18

Born to Run Ultra Marathons

May 16th 2015
| Los Olivos, CA
Distance
30 Miles
Overall
52 / 246
Division (M)
41 / 140
5:07:56

Antelope Canyon Ultras

Feb 21st 2015
| Page, AZ
Distance
50 Miles
Overall
56 / 123
Division (M)
43 / 72
11:35:32

Sean O'Brien 100k/50M/50k

Feb 7th 2015
| Malibu, CA
Distance
50 KM
Overall
103 / 198
Division (M)
71 / 114
7:20:28

2014

5 Races | 281 mi.

Across the Years

Dec 28th 2014
| Phoenix, AZ
Duration
48 Hours
Overall
15 / 71
Division (M)
9 / 43
107.08

Whoos in El Moro - Fall

Oct 12th 2014
| Newport Beach, CA
Distance
50 KM
Overall
52 / 90
Division (M)
35 / 48
6:31:33

Headlands

Sep 13th 2014
| Sausalito, CA
Distance
50 Miles
Overall
50 / 69
Division (M)
42 / 53
13:31:29

Bulldog 50K Ultra Run & 25K Trail Run

Aug 23rd 2014
| Calabasas, CA
Distance
50 KM
Overall
37 / 175
Division (M)
31 / 128
5:17:41

Born to Run Ultra Marathons

May 17th 2014
| Los Olivos, CA
Distance
100 KM
Overall
32 / 37
Division (M)
22 / 24
17:20:15

2013

2 Races | 81 mi.

Bulldog 50K Ultra Run & 25K Trail Run

Aug 24th 2013
| Calabasas, CA
Distance
50 KM
Overall
67 / 175
Division (M)
51 / 124
5:51:59

Avalon Benefit 50

Jan 12th 2013
| Avalon, CA
Distance
50 Miles
Overall
26 / 273
Division (M)
20 / 179
8:19:05

2012

3 Races | 162 mi.

JFK

Nov 17th 2012
| Boonsboro, MD
Distance
50 Miles
Overall
505 / 946
Division (M)
405 / 699
10:26:04

Born to Run Ultra Marathons

May 19th 2012
| Los Olivos, CA
Distance
100 KM
Overall
8 / 21
Division (M)
6 / 11
13:54:00

American River

Apr 7th 2012
| Folsom, CA
Distance
50 Miles
Overall
77 / 689
Division (M)
71 / 485
8:13:21

2011

3 Races | 112 mi.
Distance
50 Miles
Overall
130 / 319
Division (M)
109 / 255
10:02:50

Santa Monica Mountains

Nov 20th 2011
| Malibu, CA
Distance
50 KM
Overall
16 / 69
Division (M)
13 / 53
5:46:30

Bulldog 50K Ultra Run & 25K Trail Run

Aug 27th 2011
| Calabasas, CA
Distance
50 KM
Overall
26 / 162
Division (M)
20 / 112
6:01:18

2010

1 Race | 40 mi.

Santa Barbara Red Rock

Nov 27th 2010
| Santa Barbara, CA
Distance
40 Miles
Overall
43 / 78
Division (M)
36 / 62
10:36:00

North American Races

28
Races
12y 10m 24d
Longevity
1,430
Lifetime Miles

Personal Bests

50k (9)
5:17:41
2014
50m (7)
8:13:21
2012
100k (2)
13:54:00
2012
12hr (2)
41.07
2016
6hr (1)
20.8
2023

Distance by Year

2023
361 Miles
3 Races
2022
31 Miles
1 Race
2018
67 Miles
2 Races
2017
111 Miles
3 Races
2016
41 Miles
1 Race
2015
142 Miles
4 Races
2014
281 Miles
5 Races
2013
81 Miles
2 Races
2012
162 Miles
3 Races
2011
112 Miles
3 Races
2010
40 Miles
1 Race

Multiple Performances

2018
42nd Place
2017
66th Place
2015
41st Place
2018
6th Place
2016
2nd Place
2014
31st Place
2013
51st Place
2011
20th Place