Born in 1985. From Hokkaido, Japan. Trail runner.
After traveling the world, dancing at festivals and living a nomadic life, he discovered ultratrail running and began racing distances of 100 miles and beyond.
In 2016, he visited Chichijima in the Ogasawara Islands for the first time and became involved in invasive species control work aimed at ecosystem conservation.
Since then, he has been a member of “NPO BOISS”, working to communicate the natural beauty of the Ogasawara Islands as experienced through running, while engaging in environmental conservation activities and promoting trail running.

Race Highlights
2023
•ULTRA-TRAIL Mt. FUJI — 19th (23:47:00)
•Ohrid Ultra Trail (North Macedonia) — 3rd (16:05:07)
•La Montagnhard (France) — 12th (18:22:21)
•Eiger Ultra Trail E250 (Switzerland) — 1st place (49:17:02)
•FunTrails Round Chichibu & Okumusashi — 9th (16:28:57)
•Backyard Ultra Last Samurai Standing 2024 Hokkaido — Winner

2024
•Everest 135 Mile Extreme Race (Nepal) — 3rd (89:29:56)
•CROSSING SWITZERLAND (Switzerland) — 5th (86:50:06)
•Suva Trail (Serbia) — 6th (6:01:25)

2025
•ULTRA-TRAIL Mt. FUJI — 13th (22:08:11)
•LAKE BIWA 100 / 100 Mile + 35 Mile — 11th (30:07:27)

Self-Challenges Highlights
•FKT: Traversing the Pyrenees GR10 (France) —
9 days 21 hours 13 minutes (921.55 km / 54,698 m D+)

Born in 1988, Akito Nagao is originally from Tochigi Prefecture and now lives in Hadano, Kanagawa. A father of three, he is a trail runner and YouTuber known for his vlog series “Tada Hashiru Dake no Doga” (Just Running Videos).
With more than 30 years of running experience, Akito began as a sprinter through high school and later discovered marathon running during university. In the winter of 2013, he suffered an IT band injury that limited his running for several years. However, during a trail run from Mt. Takao to Mt. Jinba with members of a local running club, he realized he could run without pain—an experience that gradually led him into the world of trail running.
He entered his first trail race, Three Peaks Yatsugatake Trail, in 2015. Since then, he has steadily increased his race distances and joined “Team 100 Mile,” organized by OSJ, in pursuit of his ideal 100-mile performance. Akito continues to challenge a wide range of disciplines—from trail races to marathons and track meets—with the goal of running faster, stronger, and in his own style.

Affiliations
•TEAM VIBRAM @vibram_japan
•carb Support Athlete @carbjp
•Team 100 Mile / Achilleus @osj_shonan_clubhouse
•RUN BOYS! RUN GIRLS! Trail Running Club - Coach @runboysrungirls

Race Highlights
2023
•Katsuta National Marathon - 2:36:30
•OSJ Shinshiro Trail 32K - 6th (4:32:33)
•Mt. FUJI 100 - 14th (22:34:56)
•Fuji Mountain Race - 21st (3:10:54)
•Fuji Mountain Ekiden - 4th (Hundred RC)
•Tsukuba Marathon - 2:30:39

2024
•High-Tech Half Marathon - 1:12:38
•Shinetsu Five Mountains Trail 100 Mile - Winner (20:50:00)

2025
•Ultra-Trail Australia by UTMB / Miler - 5th (20:56:43)
•Fuji Mountain Ekiden - Section 4: 4th / Section 8: 10th / Team 8th (Hundred RC)
•Shinetsu Five Mountains Trail 110km - 2nd (12:21:35)
•Utsunomiya Trail Run - Long Course Winner (4:54:03)