Kielder
combo4 Sat
16°7°
2026 Kielder Marathon
42KCombo
Distances10K21K
BonusesScenic
Oct 4, 2026 · 1 day🇬🇧 Kielder, United Kingdom
Key FactsRegistration open
---Course
Standouts
The Kielder Marathon is a hilly off-road lap of Kielder Water through Northumberland forest, billed as Britain's most beautiful marathon. It starts and finishes at Leaplish Waterside Park and runs a single off-road loop around Kielder Water, following the Lakeside Way on gravel and forest trails, with no public roads on the route.
Why attend here
Autumn in Kielder is a spectacle of golden larch and crisp air, and this course lets you drink it in from the Lakeside Way's ever-changing shoreline. Between the steady climbs, you'll catch views across the reservoir to the dam and Tower Knowe, then warm up afterwards with a hearty bowl of Northumbrian stottie cake or a local ale at a village pub.
Distance from you
From Columbus, US to Kielder, GB
~7.4h · 5,905 km
typical Oct weather · 2025
ComboPart of 28 combo trips
18th Trauma Meeting 2026 “Preoperative Planning in Traumatology Complex Fractures: From Soft Tissue Management to Outcome Treatment” + Hyrox & 27 RacesSep 30 – Oct 12Riccione +27 sports2 AMOT/ACOT Congress & 14 BASAKOS Congress Balkan Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine + Hyrox & 26 RacesSep 30 – Oct 18Budva +26 sports21st Congress of the World Society for Stereotactic and Functional Neurosurgery (WSSFN) + Hyrox & 21 RacesSep 23 – Oct 5Marseille +21 sports3rd Botton Champalimaud International Pancreatic Cancer Conference: Locally Advanced and Metastatic Pancreatic Cancer: Biology and Clinical Management + Hyrox & 13 RacesSep 30 – Oct 18Lisbon +13 sports40th Annual Meeting Of The International Society Of Blood Purification + Hyrox & 27 RacesSep 30 – Oct 12Rome +27 sports62nd Annual Meeting of the European Association for the Study of Diabetes (EASD 2026) + Hyrox & 21 RacesSep 23 – Oct 5Milan +21 sports66th Congress of the German Society for Hand Surgery & 30th Congress of the DAHTH + Hyrox & 27 RacesSep 30 – Oct 18Bremen +27 sports8th ICRS Summit – Joint Preservation: The Regenerative Era is Underway + Hyrox & 21 RacesSep 30 – Oct 18Porto +21 sportsConference “Tradition and Innovation in Knee Prosthetic Surgery” + Hyrox & 27 RacesSep 30 – Oct 12Milan +27 sportsEUROSPINE 2026 + Hyrox & 24 RacesOct 1 – Oct 12Gothenburg +24 sportsEuropean Association of Neurosurgical Societies Congress (EANS 2026) + Hyrox & 23 RacesSep 23 – Oct 11Hamburg +23 sportsISHA – The Hip Preservation Society Annual Scientific Meeting ISHA 2026 + Hyrox & 27 RacesSep 30 – Oct 18Bruges +27 sportsInternational Conference on the Management of Acute Traumatic Spinal Cord Injuries + Hyrox & 19 RacesSep 23 – Oct 5Stafforshire +19 sportsInternational Symposium on Hodgkin Lymphoma (ISHL14) + Hyrox & 24 RacesSep 26 – Oct 12Cologne +24 sportsInternational Symposium on Sjögren's Disease - 17th Edition + Hyrox & 21 RacesSep 23 – Oct 5Paris +21 sportsPrevention & Intervention - Central European Summit 2026 + Hyrox & 27 RacesSep 30 – Oct 18Warsaw +27 sportsSECEM: South East Coast EM Conference 2026 + Hyrox & 25 RacesSep 30 – Oct 12Brighton +25 sportsSociety for Maternal-Fetal Medicine (SMFM) 2026 Global Congress + Hyrox & 26 RacesSep 30 – Oct 18Utrecht +26 sportsSylt Island Fall Course 2025 + Hyrox & 23 RacesSep 23 – Oct 5Sylt +23 sportsThe 14th International Conference on Health and Hepatitis in Substance Users (INHSU 2026) + Hyrox & 27 RacesSep 30 – Oct 12Prague +27 sportsWorld Congress of Psychiatric Genetics (WCPG 2026) + Hyrox & 16 RacesSep 25 – Oct 5Glasgow +16 sportsXXVIII Annual Global International Society of Addiction Medicine (ISAM) Congress + Hyrox & 22 RacesSep 23 – Oct 5Rotterdam +22 sportsligaments + bones volume I: complex acl reconstructions, revisions, pcl + slope + Hyrox & 27 RacesSep 30 – Oct 12Stuttgart +27 sports3rd Symposium on the Connection Between Physics and Metabolism in Brain Functions + Hyrox & 26 RacesSep 30 – Oct 12Barcelona +26 sportsBernstein Conference 2026 + Hyrox & 23 RacesSep 23 – Oct 5Frankfurt am Main +23 sportsEpigenetic Regulation of Acquired Behaviors in Health and Disease + Hyrox & 17 RacesSep 23 – Oct 5Baeza +17 sportsEBRAINS Student and Early Career Researcher Networking Event 2026 + Hyrox & 28 RacesSep 30 – Oct 12Baden-Württemberg +28 sportsEBRAINS Users Days 2026 + Hyrox & 28 RacesSep 30 – Oct 12Baden-Württemberg +28 sports
Event Details
Elevation
480m
Course
The course circles the reservoir on the Lakeside Way with steady rises, short steep climbs and rolling forest sections throughout, passing the dam and Tower Knowe, with no public roads on the route.
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