Over 2,500 Challengers will take on the main Thames Path Challenge following England’s greatest river – most will walk, many will jog, some will run, and all have a special reason to push themselves.
Our full 100km route heads upstream from Putney Bridge past Hampton Court to Runnymede at 50 km, then on past wonderful scenery all the way to Henley. A ‘flat’ 100 km – but a real challenge!
Start this epic Challenge in leafy South West London on the River Thames. This route follows the meandering waterway to Hampton Court, onto Runnymede of Magna Carta Fame, and eventually onto Henley-on-Thames – home of the regatta – to a fabulous celebration finish and family BBQ. The route is our flattest of all the series, along path & terrain which will test your legs, hips & feet – but you will be rewarded with 100 km of beautiful scenery and historic villages & towns.
100 km & 350 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
There’s the ULTRA MARCH®category for walkers aiming to do 100 km in less than 24 hours (or 50 km in under 12 hrs). 8.30am start.

For 2026, there’s ULTRA TRAILBLAZERZ® for faster, competitive, runners with an eye on the clock and a ‘time goal’ of sub 12 hrs (male) & 13 hrs (female) for 100km on this Challenge. 6.45 am start.

Ultra Challenge® 50 km and 100 km events are fully ITRA-certified and officially recognised as UTMB Index races. 4 ITRA points available.
Day 1 ~50 km & ~200 m
Day 2 ~50 km & ~150m
Day 1 – Sat 12 Sept
Day 2 – Sun 13th Sept
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Camping option at Runnymede base-camp at the end of DAY 1 of the Challenge
4 available (2 for each day)
The 2 Day Full 100 km Challenge breaks down the route into two halves of 50 km on Day 1 starting in W, London & finishing at our basecamp in Runnymede, and then 50 km on Day 2 – you will get to experience the route in daylight as well as the opportunity to get some rest and sleep overnight. Camp with us at our fully supported Basecamp at Runnymede on the Saturday night where we will have entertainment, hot food & more.
Start this epic Challenge in near Hampton Court. This route follows the meandering waterway to Runnymede, for a big celebration finish and hot meal at Henley on Thames.
72 km & 60m elevation.
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Start this epic Challenge in leafy South West London on the River Thames. This route follows the meandering waterway to Hampton Court, onto Runnymede of Magna Carta Fame for a big celebration finish and hot meal.
50 km & 200 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Camping option at Runnymede base-camp at the end of the Challenge
There’s the ULTRA MARCH®category for walkers aiming to do 100 km in less than 24 hours (or 50 km in under 12 hrs). 8.30am start.

For 2026, there’s ULTRA TRAILBLAZERZ® for faster, competitive, runners with an eye on the clock and a ‘time goal’ of sub 5 hrs (male) & 5.5 hrs (female) for 50km on this Challenge. 6.45am start.

Ultra Challenge® 50 km and 100 km events are fully ITRA-certified and officially recognised as UTMB Index races. 2 ITRA points available.
50 km & 150 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Camping option at Runnymede basecamp on Saturday night – prior to your Challenge
Start this epic Challenge in leafy South West London on the River Thames. This route follows the meandering waterway to Hampton Court for a big celebration finish and picnic.
28 km & 20 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
22 km & 20 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Camping option at Runnymede base-camp at the end of the Challenge
This route starts near Hampton Court, and follows the meandering waterway to Runnymede, of Magna Carta Fame, for a big celebration finish and hot meal.
28 km & 20 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
Camping option at Runnymede base-camp on Saturday night – prior to your Challenge
22 km & 10 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a range of optional pre or post Challenge shuttle bus transfer services, to make it easy to join & exit – and provide flexible options for your own planning. These include:
The Henley 10k is alongside the Thames Path Challenge’s main finish venue. It’s a fabulous 10 km loop through Remenham countryside with a start / finish near Henley Bridge on Sunday morning. Take it on as a Walk, a Jog, or as a Run – and get your family and friends involved.
Our Henley riverside base camp is a great location for a ‘Mini Challenge’ and with an optional finishers meal, a ‘Toddler 2K’ fun event – there is something for everyone down by the river!
The Thames Moonlight 10 Walk is a fun 10km or 10 mile looped route with a start near The Oval in Vauxhall. There’s hot food & drink – ideal for groups & teams.
25 km & zigzag over 16 historic bridges – Putney Bridge to Tower Bridge through Central London. Great views – perfect for teams of friends & corporate groups.
Take on the Henley 10K with a riverside start / finish. A beautiful route as a walk, jog or run at your pace. Families & teams are welcome + and there’s a BBQ option.