Cai Nielsen (M60)

2026

1 Race | 31 mi.

Cowtown Ultra

Mar 1st 2026
| Fort Worth, TX
Distance
50 KM
Overall
22 / 88
Division (M)
16 / 70
4:21:02

2025

1 Race | 100 mi.

Grasslands Trail Run

Mar 15th 2025
| Decatur, TX
Distance
100 Miles
Overall
46 / 48
Division (M)
36 / 38
29:24:50

2024

1 Race | 31 mi.

Cowtown Ultra

Feb 25th 2024
| Fort Worth, TX
Distance
50 KM
Overall
37 / 197
Division (M)
29 / 132
4:58:57

2023

2 Races | 81 mi.

Tunnel Hill 100

Nov 11th 2023
| Vienna, IL
Distance
50 Miles
Overall
102 / 345
Division (M)
68 / 200
9:45:10

Cowtown Ultra

Feb 26th 2023
| Fort Worth, TX
Distance
50 KM
Overall
42 / 197
Division (M)
36 / 135
4:47:44

2022

1 Race | 31 mi.

Cowtown Ultra

Feb 27th 2022
| Fort Worth, TX
Distance
50 KM
Overall
17 / 179
Division (M)
13 / 118
4:28:43

2021

1 Race | 100 mi.

Brazos Bend 100

Dec 4th 2021
| Needville, TX
Distance
100 Miles
Overall
33 / 114
Division (M)
25 / 81
22:35:41

2020

2 Races | 131 mi.

The Bear 100

Sep 25th 2020
| Logan, UT
Distance
100 Miles
Overall
176 / 207
Division (M)
138 / 161
34:06:49

Cowtown Ultra

Mar 1st 2020
| Fort Worth, TX
Distance
50 KM
Overall
40 / 276
Division (M)
34 / 168
4:53:15

2019

2 Races | 131 mi.

Brazos Bend 100

Dec 7th 2019
| Needville, TX
Distance
100 Miles
Overall
40 / 120
Division (M)
32 / 83
22:31:11

Cowtown Ultra

Feb 24th 2019
| Fort Worth, TX
Distance
50 KM
Overall
80 / 305
Division (M)
56 / 163
5:06:02

2018

2 Races | 93 mi.

Dinosaur Valley Endurance Run

Dec 1st 2018
| Glen Rose, TX
Distance
100 KM
Overall
2 / 14
Division (M)
2 / 11
15:22:26

Cowtown Ultra

Feb 25th 2018
| Fort Worth, TX
Distance
50 KM
Overall
45 / 326
Division (M)
32 / 170
4:51:05
13
Races
8y 0m 6d
Longevity
730
Lifetime Miles

Personal Bests

50k (7)
4:21:02
2026
50m (1)
9:45:10
2023
100k (1)
15:22:26
2018
100m (4)
22:31:11
2019

Distance by Year

2026
31 Miles
1 Race
2025
100 Miles
1 Race
2024
31 Miles
1 Race
2023
81 Miles
2 Races
2022
31 Miles
1 Race
2021
100 Miles
1 Race
2020
131 Miles
2 Races
2019
131 Miles
2 Races
2018
93 Miles
2 Races

Multiple Performances

2026
16th Place
2024
29th Place
2023
36th Place
2022
13th Place
2020
34th Place
2019
56th Place
2018
32nd Place
2021
25th Place
2019
32nd Place

Senior Grand Master Course Record

4:21:02

50 KM

Achievements are awarded for races with 25 or more finishers and courses with 200 or more finishers.

Masters: 40-49 / Grand Masters: 50-59 / Senior Grand Masters: 60+

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Infinitus
Ripton, VT - 36 finishers
100 Miles | 88 KM
Lake Tye Challenge
Monroe, WA - 25 finishers
12 Hours | 6 Hours
High Noon Showdown
Enoree, SC - 17 finishers
12 Hours | 6 Hours | 6 Hours
Spence Mountain Run
Klamath Falls, OR - 11 finishers
50 KM
Hotfoot Hamster
Buckeye, AZ - 94 finishers
24 Hours | 12 Hours | 6 Hours
Great Mansfield Outdoors
Mansfield, ON - 56 finishers
100 KM | 50 KM
Worlds End Ultramarathons
Forksville, PA - 299 finishers
100 KM | 50 KM
Blackfoot Ultra
Edmonton, AB - 124 finishers
100 KM | 50 Miles | 50 KM
The Full Mo
Sheridan, IN - 190 finishers
50 KM
Echo Valley Runs
Chelan, WA - 80 finishers
50 KM
View All Results