Last updated: March 18, 2026

Cut-off summary

Full Race Rules

The following rules govern the Montane Winter Spine Challenger South & MRT Challenge South 2027. These rules must be followed at all times during the event, both on the course and at each checkpoint.

Due to the potential for adverse or extreme weather conditions, you are responsible for your own safety on the trail and at all checkpoints. You must be in good enough physical condition to complete the race in your chosen category within the allotted time and possess the necessary skills to navigate effectively and manage emergency situations in mountainous terrain during the winter.

In addition to accepting the Race Rules and Terms & Conditions of entry, it is required that you digitally sign/agree to the participant waiver and complete the medical questionnaire prior to the start of the race. By joining the race, you accept the Race Rules and Terms & Conditions of entry.

  1. You must be aged 21 or above.
  2. Spine Challenger South & MRT Challenge South athletes have 60 hours to complete the course. Athletes must observe any advised cut-off times.
  3. All Challenger South & MRT Challenge South athletes must have departed CP1 within 24 hours, or they will be withdrawn.
  4. All athletes must have departed our Monitoring Location at Malham Tarn within 48 hours, or they will be withdrawn.
  5. Athletes must arrive in CHECKPOINTS at least 30 minutes before cut-offs to allow time for welfare assessments, checkpoint admin, and kit checks. Failure to meet the arrival or cut-off times will result in the athlete being withdrawn from the race.
  6. Monitoring Locations such as Malham Tarn are subject to a 30-minute maximum indoor stay. Athletes must arrive at this location at least 5 minutes before the cut-off to allow time for welfare assessments. Failure to meet the arrival or cut-off times will result in the athlete being withdrawn from the race.
  7. In some instances, athletes will be advised on their pacing to safely meet any cut-offs. Failure to meet any set targets may result in early withdrawal from the race.
  8. You must check in/out of every checkpoint. You are permitted to stay at a Spine Checkpoint for a maximum of 6 hours, but you must still observe cut-offs.
  9. You must ensure your race number is recorded by our course monitors during the race. Failure to do this will incur a penalty. If it happens more than once there may be further penalties or expulsion.
  10. The Challenger South & MRT Challenge South are unsupported events. If friends/family wish to cheer you on, limit this to one instance in total for everyone during the race.