Connemara 100
August 15, 2026
Clifden · Clifden, Ireland
About
The Connemara 100 is a demanding ultra on Ireland's wild west coast, built around a certified 100-mile road loop that starts and finishes in Clifden. The course rolls through striking landscapes including Letterfrack, Maam Cross, Leenane, Roundstone, and Ballyconneely, with two journeys through the dramatic Inagh Valley. Repeated climbs and descents make it a stern physical challenge on tough road terrain.
Pick your distance
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Start
Clifden
Start time
06:00
Weather
Cloudy 16°C
Pack this
- Road shoes + spare pair at crew stop for foot rotation
- Headlamp + red rear blinker for night road sections
- Lightweight waterproof jacket (Irish coastal showers)
- Handheld or vest with 500ml + electrolyte tabs and gels
- Anti-chafe balm, blister kit, and a change of socks
What you should know
- 100 miles on open Irish roads — run facing traffic and wear high-vis, especially after dusk.
- Weather flips fast on the Connemara coast: expect wind, rain, and 10°C swings even in August.
- A crew vehicle is effectively required; know the passing/parking etiquette on narrow rural lanes.
- Overall cutoff and intermediate checkpoints are strict — confirm the current time limit at briefing.
- Rolling terrain with no major climbs, but cumulative elevation and camber will punish one-sided gait.
Based on 1 source
The information shown here is based on the most recent listing we could find, and may change. Always confirm details on the event's official site before registering.