ZM🇺🇸
Mobile (Converted School Bus)Born October 30, 1988
UTMB 893ITRA 900Wins 10Podiums 12

American professional ultramarathon runner born in Kenya to missionary parents and raised in Lancaster County, Pennsylvania. Miller's unconventional training journey includes working on the Queen Mary 2 cruise ship where he trained on treadmills and stairwells, living as caretaker at Barr Camp on Pikes Peak for five years, and now residing in a converted school bus. After a three-year recovery from Haglund's syndrome, he returned to elite competition in 2023, finishing second at UTMB and becoming one of the few American men to podium at the prestigious 100-mile race.

Race Results

2025
1 race
5th
165km
10,000m+
25:49:22
2023
3 races1 win
2nd
170km
9,963m+
19:58:58
6th
85.8km
5,413m+
10:15:45
Innsbruck-Stubai
1st
165.2km
3,700m+
14:41:41
2022
2 races1 win
5th
170km
10,050m+
21:27:50
1st
Trail 100 Andorra
Jun 24
105km
7,470m+
14:20:25
2018
2 races1 win
2nd
JFK 50 Mile/JFK 50
Nov 17
50mi
1,350m+
5:41:02
1st
Buff Epic Trail 26K
Jun 30
26km
1,798m+
2:48:08
2017
1 race1 win
1st
The North Face Endurance Challenge/The North Face 50
Nov 18
50mi
3,010m+
50 mile, Marin County
2016
2 races2 wins
1st
The North Face Endurance Challenge/The North Face 50
Dec 3
50mi
3,305m+
50 mile, Marin County
1st
115km
6,850m+
13:52:17
2015
2 races2 wins
1st
The North Face Endurance Challenge/The North Face 50
Dec 5
50mi
3,640m+
50 mile, Marin County
1st
100km
6,050m+
11:53:32
First American win
2014
1 race1 win
1st
Lake Sonoma 50
Apr 12
50mi
3,370m+
6:11:10
2013
1 race1 win
1st
JFK 50 Mile/JFK 50
Nov 23
50mi
1,350m+
5:38:40
3rd fastest time in course history

Career Highlights

2023: Second place at UTMB 100-mile after comeback from injury - one of few American men to podium
2023: Tarawera Ultramarathon victory in his comeback year
2015-2017: Three consecutive North Face 50 victories
2015: Historic first American win at UTMB CCC (105km)
2013: JFK 50 Mile victory with third fastest time in course history, turned professional
2022: Trail 100 Andorra winner (105km)
2016: Madeira Island Ultra Trail champion (100 mile)

Key Achievements

CCC Winner (2015) - First American to win
The North Face 50 Winner (2015, 2016, 2017)
JFK 50 Winner (2013) - Third fastest time in course history
UTMB Runner-up (2023) - One of few American men to podium
Tarawera Ultramarathon Winner (2023)
Trail 100 Andorra Winner (2022)
Madeira Island Ultra Trail Winner (2016)
Lake Sonoma 50 Winner (2014)

Notable Traits

Born in Kenya to missionary parents, raised in Lancaster County, Pennsylvania
Studied electrical engineering at Rochester Institute of Technology
Trained on Queen Mary 2 cruise ship's treadmills and stairwells while working in print shop
Lived at Barr Camp near Pikes Peak for 5 years, training at high altitude
Currently lives in a converted school bus (skoolie)
First American to win UTMB's CCC race (2015)
Overcame three-year break due to Haglund's syndrome to return to elite racing