RACES
Marathons
Berlin MarathonBoston MarathonChicago MarathonLondon MarathonNew York City MarathonView all →
Trail & Ultras
Arc of Attrition by UTMBArizona Monster 300Badwater 135Barkley MarathonsBear 100View all →
EXPLORE
AthletesCalendarNewsPodcastRecordsFind a RaceCompare RacesResearchGearInfluencersClassificationsNotificationsGut Check
Koyama
← All Athletes
Trail & Ultra/Trail

Juntaro Koyama

Japan
1
Win
1
Race
2022
Active Since

PERSONAL BESTS

Trail Ultra
21:30:00

RACE HISTORY

1 result across 1 race
Mt. Fuji 100
2022
21:30:00

RELATED ATHLETES

Raced similar events
Trail & Ultra
Fernanda Maciel
Brazil
Trail & Ultra
Fuzhao Xiang
China
Trail & Ultra
Guomin Deng
China
Trail & Ultra
Courtney Dauwalter
USA
Road
Chris Myers
United States
Road
Ying Li
China
Trail & Ultra
Dylan Bowman
USA
Trail & Ultra
Gediminas Grinius
Lithuanian
© 2026 Run Time RacingBuilt for runners. Powered by data.RuntimeRacing is a participant in affiliate advertising programs including Amazon Associates. We earn from qualifying purchases.