CamLynn Marathon and Ultra

Cambridge, United Kingdom • 7 Nov 2026

CamLynn Marathon and Ultra

The CamLynn Marathon and Ultra is a set of road and trail events that follow the Fens Way from Cambridge toward Ely and Kings Lynn. The event starts at the 26th Cambridge Scouts Hall and is described as a flat and fast route that uses established paths between towns.

Event options include multiple distances and relay formats:

  • Marathon: Cambridge to Ely, finish at 1st Ely Scouts Hut.
  • 50 Mile Ultra: Cambridge to Kings Lynn, track finish at Lynnsport.
  • 50 Mile Pair Relay: 26 miles and 24 miles.
  • 50 Mile Trio Relay: 10 miles, 16 miles and 24 miles.
  • 100 Mile Ultra: full 100 mile option on varied mixed terrain.

The event provides GPS tracking, route maps and GPX files, race bibs, first aid cover and multiple aid stations. Additional services include bag drop, the option to send a personal drink to the final aid station, free finish photos, a finish medal and the display of participants’ country flags. Optional extras are an event T shirt and coach transfers to the start from Kings Lynn or Ely with booking details to be confirmed.

Cut off times are published for each distance: a 6.5 hour marathon cut off, a 14 hour 50 mile cut off and a 32 hour 100 mile cut off. Minimum age limits apply by race: marathon 18 years, 50 mile 21 years, relays 18 years, and 100 mile 23 years. The event notes accessibility for brisk walkers, charity runners and first timers as well as experienced ultra runners. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile Ultra
50 mi
50 Mile Trio Relay: 10 Miles + 16 Miles + 24 Miles
50 mi
50 Mile Ultra
50 mi
50 Mile Pair Relay: 26 Miles + 24 Miles
26 mi
Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

A guided 16k trail run at High Lodge in Thetford Forest with conversational group pacing, forest facts and practical trail-running tips, varied woodland terrain and opportunities to spot wildlife.

Circular cross country event from Baldock offering 26 and 18 mile routes across grassland, fields and woodland with checkpoint refreshments and a finish certificate. Minimum age 14 and entries close 13 June or when the 175 limit is reached.

A self navigation trail of about 6 miles near Thaxted on 24 June 2026 with Race HQ at the Farmhouse Inn. Written route descriptions are issued on the day and entry includes a pub voucher.

Complete three races over three days to achieve a full marathon distance at the Colworth Estate. This multi terrain event in North Bedfordshire offers distances of 5 miles, 8.1 miles, and a half marathon.

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