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Essential Info


Llanberis, Gwynedd (LL55 4UR)


Sunday 11th July 2021

Start Time

Ultra Marathon - 0630

Marathon - 08:30

Half Marathon - 0945

10k - 10.15

Registration and Expo

In the event village Saturday Afternoon and Sunday Morning. 

Prize Giving

13:00 (approximate time subject to change on the day)

Half Marathon and 10k at the race finish area.

15:00 (approximate time subject to change on the day)
Prize giving at the race finish area for the Marathon and Ultra Marathon 

Cut Off Times

Marathon runners will be cut off at Rhydd Ddu (6.1 miles) at 10:30 (average 3.05mph)

Marathon and Ultra Runners will be cut off at Beddgelert (10.75 miles Marathon - average 3.3mph, 20.5miles Ultra - average 3.9mph) at 11:40

Marathon and Ultra Runners will be cut off at Pen Y Pass at 14:20 (Ultra Marathon mile 28.6 - average 3.65mph. Marathon mile 18.8 - average 3.2mph)

All cut offs are in place to safeguard the well being of both athletes and our marshals. Athletes arriving after these times will be offered the choice of returning by foot to the event village or waiting for an event shuttle vehicle. Buses to Llanberis are £1.50 should you wish to use them from Pen y Pass.

The Finish Line will close at 1830. This allows the below times for completion.

Ultra Marathon - 12 Hrs

Marathon -10 Hrs

For Marshal Welfare, Half and 10K runners will need to finish within the following times.

Half Marathon - 6 Hrs 30 Mins

10k - 2 Hrs 30 Mins

Event partners

  • High5 Sports Nutrition
  • Gwynedd County Council
  • Jones o Gymru