The One on the River - Marlow
The One on The River takes place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, or run the flat Thames path – with a mixture of grass, tarmac, and trail – taking in the views of Marlow and the surrounding areas. THE ONE NOT TO MISS.
DATE
July 12, 2026
LOCATION
Higginson Park, Marlow
DISTANCES
Triathlon, Swim, Duathlon, Aquabike, Aquathlon
RACES
Triathlon
- Middle: £110
- Standard: £80
- Sprint: £70
Multisport (DT/AB/AT)
- Middle: £80-£85
- Standard: £65
- Sprint: £60
Swim
- 3000m: £40
- 1500m: £30
- 750m: £25
EVENT INFORMATION
Distances* & Start Times*
*subject to change closer to the event
| Event | Distance | Swim | Bike | Run | Start Time |
|---|---|---|---|---|---|
| Triathlon Middle | 1900m | 91k | 20k | 06:30am | |
| Triathlon Standard | 1500m | 40k | 10k | 07:30am | |
| Triathlon Sprint | 750m | 24k | 5k | 08:15am | |
| Duathlon Middle | 91k | 5k+20k | 06:45am | ||
| Duathlon Standard | 40k | 5k+10k | 07:45am | ||
| Duathlon Sprint | 24k | 5k+5k | 08:30am | ||
| Aquabike Middle | 1900m | 91k | 06:30am | ||
| Aquabike Standard | 1500m | 40k | 07:30am | ||
| Aquabike Sprint | 750m | 24k | 08:15am | ||
| Aquathlon Middle | 1900m | 20k | 06:30am | ||
| Aquathlon Standard | 1500m | 10k | 07:30am | ||
| Aquathlon Sprint | 750m | 5k | 08:15am | ||
| Swim 3000m | 3000m | 09:15am | |||
| Swim 1500m | 1500m | 09:15am | |||
| Swim 750m | 750m | 09:15am |
Village Location
Event village in situated in Higginson Park, Lower Pound Lane, Marlow, SL7 2AE
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Race Pack Collection
Your timing chip, bib number and bike/helmet stickers will be available for collection on the event day from 05:30am. These will be ready for you to collect from Registration Tent, which will be located between the river and transition.
Participants should not expect to receive anything by mail.
Registration on the day might be available.
Transition area
Transition area opens at 05:30am. To enter transition, you must show your corresponding event number and bike sticker (which must be stuck to your seat post) to the event marshal.
The Route
All swim, bike and run courses are marked with signs and well marshalled. The course map is available to view here. Based on the distance you are completing you will be required to do a particular number of laps at each leg.
Detailed pre-race information will be published to all registered participants 2 weeks prior to the event.
FACILITIES
Suitable medical cover is provided at our events in case of a medical emergency.
There will be NO bag drop on the day. Please leave belongings that you don’t need in the transition area or in your car.
We will have a food caterer onsite for pre and post race refreshments.
Event images are expected to be available, usually within 24 hours of the event.
There are free portable toilets in the event village. This is your only chance to go, as there won't be toilets on the route.
There are no dedicated changing rooms/showers.