As Keen As Mustard Grafham Swimrun Survivor

SEP
27
2026
Test your endurance at Grafham Water in this solo survivor format swimrun where time limits decrease every lap. Complete as many 2.5 km laps as possible to be the last person standing.
Sun 27 Sep 2026
Lap 1 Lap 2 (cumulative) Lap 3 (cumulative) Lap 4 (cumulative) Lap 5 (cumulative)

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As Keen As Mustard Grafham Swimrun Survivor

The As Keen As Mustard Grafham Swimrun Survivor is a multi-stage endurance competition held at Grafham Water. This solo timed lap event follows a "last person standing" format where participants attempt to complete consecutive laps before an ever-decreasing time limit expires.

The course consists of a 2.5 km lap that includes three run sections and two swim sections within Grafham Water. Each lap follows a specific structure:

  • Run 1: 700 m
  • Swim 1: 220 m
  • Run 2: 1000 m
  • Swim 2: 400 m
  • Run 3: 250 m

Participants have 40 minutes to complete the first lap. The allowed time for subsequent laps decreases progressively, reducing to 16 minutes by the 12th lap. To remain in the competition, racers must be at the start line for the beginning of the next lap. The event continues until only one survivor remains. The total elevation per lap is 20 m.

Mandatory equipment includes a whistle, a waterproof packaged small bandage, and a soft cup or water bladder. A swim cap and race number bands are provided by the organizers. Wetsuits are required if the water temperature falls below 14 degrees Celsius. Competitors must carry all their equipment from start to finish. One water and energy drink station is located at the start and finish area. Visit the organization's website for the most recent information.

30 km
Lap 12 (cumulative)
28 km
Lap 11 (cumulative)
25 km
Lap 10 (cumulative)
23 km
Lap 9 (cumulative)
20 km
Lap 8 (cumulative)
18 km
Lap 7 (cumulative)
15 km
Lap 6 (cumulative)
13 km
Lap 5 (cumulative)
10 km
Lap 4 (cumulative)
8 km
Lap 3 (cumulative)
5 km
Lap 2 (cumulative)
Lap 1