2026 Eden Project Marathon

Name: 2026 Eden Project Marathon
Start: 2026-10-18
End: 2026-10-18
Location: St Austell, United Kingdom

42KCombo

Distances21K

BonusesScenic

Oct 18, 2026 · 1 day🇬🇧 St Austell, United Kingdom

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Key FactsRegistration open

Course

Standouts

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The Eden Project Marathon is a hilly, 70% off-road single multi-terrain loop starting and finishing at the Eden Project near St Austell, Cornwall, featuring the climb up Helman Tor and a dramatic finish beside the biomes. It is a genuinely tough course with roughly 780m of total ascent, and most runners finish 20-30 minutes slower than their road marathon time.

Why attend here

October in Cornwall brings crisp air and quieter trails, perfect for taking in the dramatic shift from woodland to open moorland as you climb Helman Tor. After the race, warm up with a pasty in St Austell or explore the Eden Project's own biomes, which feel especially cozy as the season turns.

Distance from you

From Columbus, US to St Austell, GB

~7.4h · 5,953 km

St Austell

combo

typical Oct weather · 2025

15 Wed

16°10°

0mm5.2 m/s

1 Sat

15°10°

9.6mm11.3 m/s

ComboPart of 21 combo trips

2026 ISAKOS Knee Arthroplasty Forum + Hyrox & 22 RacesOct 9 – Oct 19Brussels +22 sports 22nd Biennial Meeting of the European Society for Immunodeficiencies (ESID) + Hyrox & 21 RacesOct 9 – Oct 19Maastricht +21 sports 39th European College of Neuropsychopharmacology (ECNP) Congress + Hyrox & 28 RacesOct 4 – Oct 19Munich +28 sports 41st National Congress of the Italian Ankle and Foot Society (SICP) “Ankle and foot pathologies in sports: from diagnosis to treatment” + Hyrox & 24 RacesOct 9 – Oct 19Fiorano Modenese +24 sports Cytokines 2026 + 18 RacesOct 17 – Oct 26Glasgow +18 sports Lisbon European Society of Intensive Care Medicine (ESICM) LIVES 2026 + Hyrox & 11 RacesOct 10 – Oct 19Lisbon +11 sports SIAGASCOT Special Day 2026 “Management of Complications in Primary Knee and Shoulder Replacement Surgery: A Never-Ending Story” + Hyrox & 23 RacesOct 9 – Oct 19Rozzano +23 sports The 2nd International Congress on Cellular and Humoral Immunotherapy in Autoimmunity (CHIA) + Hyrox & 26 RacesOct 15 – Nov 1Frankfurt +26 sports United European Gastroenterology (UEG) Week Barcelona 2026 + Hyrox & 30 RacesOct 10 – Oct 26Barcelona +30 sports V CME HeartCare and Cardiovascular Medicine Conference + Hyrox & 20 RacesOct 17 – Oct 26Berlin +20 sports V Euro Anesthesiology and Critical Care Congress + Hyrox & 11 RacesOct 17 – Oct 24Berlin +11 sports Combined Symposium Belgian & Dutch Knee Societies 2026 + Hyrox & 24 RacesOct 15 – Nov 1Bilzen +24 sports DKOU 2026 – Deutscher Kongress für Orthopädie und Unfallchirurgie + Hyrox & 21 RacesOct 17 – Nov 1Berlin +21 sports International cardiovascular development, anatomy and regeneration meeting + Hyrox & 19 RacesOct 15 – Nov 1Porto +19 sports ReOrtho. Revision Orthopaedics 2026 + Hyrox & 20 RacesOct 15 – Nov 1Warsaw +20 sports Sleep Europe 2026: The 28th Congress of the European Sleep Research Society (ESRS) + Hyrox & 23 RacesOct 15 – Nov 1Maastricht +23 sports European Society for Medical Oncology (ESMO) Congress 2026 + Hyrox & 24 RacesOct 15 – Nov 1Madrid +24 sports European Synapse Meeting 2026 + Hyrox & 24 RacesOct 15 – Nov 1Leuven +24 sports International Symposium on Sensorimotor Transformation + Hyrox & 24 RacesOct 9 – Oct 19Freiburg +24 sports 15th Conference of Undiagnosed Diseases Network International – UDNI Siena 2026 + Hyrox & 22 RacesOct 9 – Oct 19Siena +22 sports Deep Dive Bologna 2026 – The potential of AI in Orthopaedics + Hyrox & 22 RacesOct 9 – Oct 19Bologna +22 sports

Event Details

Elevation

780m

Course

The route winds through woodland, reclaimed china-clay land and open Cornish countryside, with the major climb up Helman Tor, a granite outcrop criss-crossed by muddy trails, and a final half-mile that zig-zags down the side of the clay pit to finish beside the iconic biomes.