The TP100 course follows the Thames Path for 99% of the race. The exceptions to this are listed below and are where our aid stations fall just slightly off of the marked TP trail. Whilst every one of these deviations will be carefully marked on race day, it is YOUR responsibility to take note of them and locate them. None of the deviations present anything more than mild and very short diversions off of the route.
It is strongly advised that you carry a map for the race. We recommend the Harvey Map as it is a concise and easy to use copy. These general maps do not display these deviations so making a note of them before race day is a worthwhile exercise.
UPDATE: There are currently four diversions on course due to structural issues with bridges on the route. The race route for 2024 will therefore run 4 miles long and as such we are allowing an extra hour to complete the course. The extra hour will be applied where the first major diversion is at the Hurley check point mile 44 and at every check point from there on.
Runnymede: 600 metres
Marlow: 900 metres
Henley: 1.5 miles
Benson: 700 metres
The GPX at the bottom of this page here is complete and updated to include the diversions that will be in place on the day.
EVERYTHING BELOW WILL BE CLEARLY MARKED OVER RACE WEEKEND INCLUDING THE DIVERSIONS.
Mile 12, Walton on Thames/ Lower Halliford: The course follows the ALTERNATIVE Thames Path route, first crossing Walton Bridge and then meandering through through Lower Halliford & Shepperton as opposed to the southerly route which ends shortly afterwards at the ferry crossing.
Mile 85: Clifton Hampden Aid Station: Runners will deviate off of the Thames Path up to Clifton Hampden Village Hall check point. This is an out and back. It will be marshalled.
EVERYTHING ABOVE WILL BE CLEARLY MARKED OVER RACE WEEKEND.
