Geyik Kosulari
Trail Running covering 4 km to 28 km in Bahçeköy (Istanbul, Turkey)
Geyik Kosulari is an endurance sporting event in Bahçeköy, Istanbul, TR focused on Trail Running. Key features include Nature & Off-Road, Forest.
The race program comprises 4 competitions, including Trail 28 km (28 km, +646 m D+), Trail 14 km (14 km, +359 m D+), Trail 8 km (8 km, +247 m D+), and Trail 4 km (4 km, +144 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 (geyikkosulari.com).

Event characteristics
Races & distances (4)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Trail 28 km | Trail Running | 28 km | +646 m | 80 m - 224 m | Loop course | Route & profile |
| Trail 14 km | Trail Running | 14 km | +359 m | 96 m - 224 m | Loop course | Route & profile |
| Trail 8 km | Trail Running | 8 km | +247 m | 111 m - 211 m | Loop course | Route & profile |
| Trail 4 km | Trail Running | 4 km | +144 m | 88 m - 169 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 80 m to 224 m above sea level (+646 m D+, -646 m D-)
Elevation profile & course telemetry
Altitude from 96 m to 224 m above sea level (+359 m D+, -359 m D-)
Elevation profile & course telemetry
Altitude from 111 m to 211 m above sea level (+247 m D+, -247 m D-)
Elevation profile & course telemetry
Altitude from 88 m to 169 m above sea level (+144 m D+, -144 m D-)
Frequently asked questions (FAQ)
When and where does Geyik Kosulari take place?
Geyik Kosulari takes place in Bahçeköy, Istanbul, TR (start area at coordinates 41.1788° N, 28.9921° 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 Geyik Kosulari?
The race program comprises 4 competitions, including Trail 28 km (28 km, +646 m D+), Trail 14 km (14 km, +359 m D+), Trail 8 km (8 km, +247 m D+), and Trail 4 km (4 km, +144 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for Geyik Kosulari?
The main competition (Trail 28 km over 28 km) is designed as a loop course featuring +646 m of elevation gain and -646 m of elevation loss, ranging between 80 m and 224 m above sea level. An interactive course map with a verified 3D GPS track, kilometer markers, and GPX download is available in the course section on this page.
Where can I find registration and official race rules for Geyik Kosulari?
Official race regulations, course details, and registration information are provided on the organizer's website (geyikkosulari.com).