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One on the River - Marlow - May - Sunday 24th 06:30 - Sunday 24th May 2026 16:00
Before you enter One on the River - Marlow - May
Triathlon Middle Swim 1900m | Bike 91km | Run 20km
Triathlon Standard Swim 1500m | Bike 40km | Run 10km
Triathlon Sprint Swim 750m | Bike 24km | Run 5km
Duathlon Middle Bike 91km | Run 5km + 20km
Duathlon Standard Bike 40km | Run 5km + 10km
Duathlon Sprint Bike 24km | Run 5km + 5km
Aquabike Middle Swim 1900m | Bike 91km
Aquabike Standard Swim 1500m | Bike 40km
Aquabike Sprint Swim 750m | Bike 24km
Aquathlon Middle Swim 1900m | Run 20km
Aquathlon Standard Swim1500m | Run 10km
Aquathlon Sprint Swim 750m | Run 5km
Swim 3000m
Swim 1500m
Swim 750m
Registration
Ticket Categories
Triathlon
£ 117.37
Triathlon - Middle
Standard
+ Admin fees £ 7.37
British Triathlon Race Pass
£ 110.00
Standard
+ Admin fees £ 7.37
British Triathlon Race Pass
£ 85.36
Triathlon - Standard
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 80.00
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 74.69
Triathlon - Sprint
Standard
+ Admin fees £ 4.69
British Triathlon Race Pass
£ 70.00
Standard
+ Admin fees £ 4.69
British Triathlon Race Pass
Swim
£ 42.68
Swim - 3000m
£ 40.00
Standard Entry
+ Admin fees £ 2.68
Standard Entry
+ Admin fees £ 2.68
£ 32.01
Swim - 1500m
£ 30.00
Standard
+ Admin fees £ 2.01
Standard
+ Admin fees £ 2.01
£ 26.68
Swim - 750m
£ 25.00
Standard
+ Admin fees £ 1.68
Standard
+ Admin fees £ 1.68
Duathlon
£ 90.69
Duathlon - Middle
Standard (Ages 17 - 130)
+ Admin fees £ 5.69
British Triathlon Race Pass
£ 85.00
Standard (Ages 17 - 130)
+ Admin fees £ 5.69
British Triathlon Race Pass
£ 69.35
Duathlon - Standard
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 65.00
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 64.02
Duathlon - Sprint
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
£ 60.00
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
Aquabike
£ 85.36
Aquabike - Middle
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 80.00
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 69.35
Aquabike - Standard
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 65.00
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 64.02
Aquabike - Sprint
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
£ 60.00
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
Aquathlon
£ 85.36
Aquathlon - Middle
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 80.00
Standard
+ Admin fees £ 5.36
British Triathlon Race Pass
£ 69.35
Aquathlon - Standard
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 65.00
Standard
+ Admin fees £ 4.35
British Triathlon Race Pass
£ 64.02
Aquathlon - Sprint
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
£ 60.00
Standard
+ Admin fees £ 4.02
British Triathlon Race Pass
About One on the River - Marlow - May
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.
We are hosing two British Triathlon Age-Group Major Events in 2026. English Standard Distance Aquabike and World Standard Distance Aquabike Qualifier
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Affiliations
This event has the following affiliations or accreditations:
Contact One on the River - Marlow - May
- Email: hello@onerace.events
- website: https://www.onerace.events/
- Phone: +44 (0) 20 8080 1929
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