Phoenix Running - Trelewis

JUL
11
2026
A timed, multi lap run at Parc Taf Bargoed using a 5.3 km out and back lap. Distances range from 5 km to ultra with a seven hour limit and a medal or no medal entry option.
Sat 11 Jul 2026
Lap Distance 10k Half Marathon Marathon

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Phoenix Running South Wales Butterfly Run

The event is organised by Phoenix Running South Wales at the Rock UK Summit Centre near Trelewis, Merthyr Tydfil, and uses a 5.3 km, 3.28 mile out and back lap through Parc Taf Bargoed. The course is multi terrain, with the majority on tarmac paths and about 0.5 miles on a riverside trail. Each lap has approximately 37 m elevation gain and loss.

This is a timed event where participants choose how many laps to complete within a seven hour time limit. The minimum distance is one lap, 3.28 miles. The event offers a range of distance options:

  • 5 km
  • 10 km
  • Half marathon
  • Marathon
  • Ultra distance options by completing additional laps

Organisers provide finishers medals to attended participants and offer a lower cost no medal entry option. The event uses flexible rock up and run start times to accommodate different arrival times. Entry categories include affiliated and unaffiliated fees. The event is licensed by Welsh Athletics, race licence 26MTWA00309. Places are limited and the event includes event support such as aid stations and same day results. Visit the organization's website for the most recent information.

Marathon
Marathon
Half Marathon
Half Marathon
10 km
10k
5 km
3 mi
Lap Distance
7 Hour Timed Run
Ultra
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