Ultra Running Hub Portumna, Ireland · Saturday, June 6, 2026
Fixed Distance 50K
Portumna 50km Ultramarathon
Race completed
50 km Distance
24 m Climbing
2.5 Grit · Entry level
What the course asks
Climbing rate 0 m / km
Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.
Time limit 8 hours
9:36 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 89% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →
Field size ~61 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2022 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, June
Daytime high 18°C
Night low 10°C
Rainfall Mostly dry
Daylight 16 h 43 m of light
Regional 2001-2020 average for June — NASA POWER, grid elevation 90 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
With road terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of road with 24 m of ascent.
- Trail Running Shoes50 km of road — cushioning that is still there in the last quarter.
- Race Nutrition50 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 50 km, without the bounce.
- GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.
Course Notes
5km laps (Course has been certified by accredited measurers). The start line is at the marina behind the castle.
Similar races
Other 50K road ultras, closest in distance first.