Course
Three separate sea-level-to-summit ultramarathon routes climbing Ben Nevis, Scafell Pike and Yr Wyddfa. Each can be entered on its own, or all three completed across the series to earn the Gold Trilogy Medal. The routes are purpose-designed by the organiser rather than following the standard walking lines.
Key dates
- ·RegistrationNot open yet
- ★Race daySeptember 2027 · date to be announced
About
The Rat Race Sea to Summit 3 Peaks trilogy takes you to the summit of the high points of England, Scotland and Wales along 3 spectacular and varied ultramarathon distance routes. Popular since time eternal, "the 3 peaks" probably need no introduction. But the way these routes have been laid down is a totally fresh take on this threesome of classic British mountains. With routes specially and uniquely designed by us, if you know Rat Race you'll already know that these will not be your standard days out on these tops.
Save National 3 Peaks Sea to Summit Ultramarathon Trilogy to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Snowdonia Ultra 100
A 100-mile trek through Snowdonia mountain wilderness
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Snowdonia Sea2Sky
Sea to summit — Barmouth coast into Snowdonia's peaks
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Cardiff 10K
Race past Cardiff Castle and Principality Stadium
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Caernarfon Half Marathon
Flat castle-side half marathon finishing by Caernarfon Castle
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.