Saiko Eco-Marathon
Road Running covering 5 km to 21.1 km in Saitama (Saitama Prefecture, Japan)
Saiko Eco-Marathon is an endurance sporting event in Saitama, Saitama Prefecture, JP focused on Road Running. It is part of EcoMarathon. Key features include Eco-Friendly, Kids & Youth Races, Lakes & Ponds, Nature & Off-Road.
The race program comprises 3 competitions, including Half Marathon (21.1 km, +95 m D+), Road Running 10 km (10 km, +45 m D+), and Road Running 5 km (5 km, +22 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (japan.ecomarathon.run).

Event characteristics
Races & distances (3)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Half Marathon | Road Running | 21.1 km | +95 m | 171 m - 211 m | Loop course | Route & profile |
| Road Running 10 km | Road Running | 10 km | +45 m | 174 m - 193 m | Loop course | Route & profile |
| Road Running 5 km | Road Running | 5 km | +22 m | 177 m - 186 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 171 m to 211 m above sea level (+95 m D+, -95 m D-)
Elevation profile & course telemetry
Altitude from 174 m to 193 m above sea level (+45 m D+, -45 m D-)
Elevation profile & course telemetry
Altitude from 177 m to 186 m above sea level (+22 m D+, -22 m D-)
Frequently asked questions (FAQ)
When and where does Saiko Eco-Marathon take place?
Saiko Eco-Marathon takes place in Saitama, Saitama Prefecture, JP (start area at coordinates 35.9081° N, 139.6566° E). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at Saiko Eco-Marathon?
The race program comprises 3 competitions, including Half Marathon (21.1 km, +95 m D+), Road Running 10 km (10 km, +45 m D+), and Road Running 5 km (5 km, +22 m D+). The competitions belong to Road Running.
What is the course layout and elevation profile for Saiko Eco-Marathon?
The main competition (Half Marathon over 21.1 km) is designed as a loop course featuring +95 m of elevation gain and -95 m of elevation loss, ranging between 171 m and 211 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for Saiko Eco-Marathon?
Official race regulations, course details, and registration information are provided on the organizer's website (japan.ecomarathon.run).