Mumbles Triathlon

SEP
26
2026
Sea swim in Mumbles Bay, a hilly bike around the Gower Peninsula and a flat seafront run in Olympic and Sprint distances on 26 September 2026.
Sat 26 Sep 2026
Sprint 750 m 32 5 km Olympic 1500 m 42 10 km

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Mumbles Triathlon

Mumbles Triathlon takes place on 26 September 2026. The event features a sea swim in Mumbles Bay, a hilly bike route around the Gower Peninsula and a fast, flat run along the seafront. It is listed as an Ocean Lava qualifier and is noted as suitable for club championships.

The event offers two distance options with specific swim, bike and run lengths. Entry fees are shown for each distance and a payment plan is available.

  • Olympic distance: 1500m swim / 42km bike / 10k run
  • Sprint distance: 750m swim / 32km bike / 5km run

Course structure includes lap counts for each leg. For the Olympic distance the swim and run use two laps and the bike uses one lap; the sprint distance uses one lap for each leg. GPX route files are provided for swim, bike and run segments. Pricing listed for 2026 is Olympic £99 and Sprint £79. The event schedule and supporting materials such as race packs, results and volunteer information are provided as part of event resources. Visit the organization's website for the most recent information.

10 km
Olympic Distance
Sprint Distance
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