The One on the River - Henley

Edition history
Buckinghamshire, Buckinghamshire, United Kingdom
21 Sep, 2025 (Sun)

Swimming

750 m, 1500 m, 3000 m

Aquabike

1900 m

78.5 km

1500 m

54 km

750 m

30 km

Triathlon

750 m

35 km

5 km

1500 m

54 km

10 km

1900 m

78.5 km

20 km

Price match guarantee

Price from
30 EUR
Register now
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Official registration partner of The One on the River - Henley

About the event

Experience the Henley triathlon, also known as The One on the River - Henley, in the beautiful Thames Valley region. The event offers participants the chance to swim in the river, bike through undulating open roads, and run along scenic trail paths with breathtaking views.

Races offered by this event

You have 33 weeks to prepare

Middle Triathlon

21 Sep, 2025 (Sun) - 07:00
Triathlon

1900 m

78.5 km

20 km

Solo
On site
  • Swimming
    1900 m
    River
  • Cycling
    78.5 km
    Road
  • Trail running
    20 km
    Trail

Middle Aquabike

21 Sep, 2025 (Sun) - 07:00
Aquabike

1900 m

78.5 km

Solo
On site
  • Swimming
    1900 m
    River
  • Cycling
    78.5 km
    Road

Standard Triathlon

21 Sep, 2025 (Sun) - 08:00
Triathlon

1500 m

54 km

10 km

Solo
On site
  • Swimming
    1500 m
    River
  • Cycling
    54 km
    Road
  • Trail running
    10 km
    Trail

Standard Aquabike

21 Sep, 2025 (Sun) - 08:00
Aquabike

1500 m

54 km

Solo
On site
  • Swimming
    1500 m
    River
  • Cycling
    54 km
    Road

Sprint Aquabike

21 Sep, 2025 (Sun) - 08:45
Aquabike

750 m

30 km

Solo
On site
  • Swimming
    750 m
    River
  • Cycling
    30 km
    Road

Sprint Triathlon

21 Sep, 2025 (Sun) - 08:45
Triathlon

750 m

35 km

5 km

Solo
On site
  • Swimming
    750 m
    River
  • Cycling
    35 km
    Road
  • Trail running
    5 km
    Trail

Swim 1500m

21 Sep, 2025 (Sun) - 09:45
Swimming

1500 m

Solo
On site
River

Swim 3000m

21 Sep, 2025 (Sun) - 09:45
Swimming

3000 m

Solo
On site
River

Swim 750m

21 Sep, 2025 (Sun) - 09:45
Swimming

750 m

Solo
On site
River

Course details

Start address

Higginson Park, High Street, Marlow, UK

Finish address

Higginson Park, High Street, Marlow, UK

What’s included in entry

These are included in your entry
Finisher medal
Timing chip (single use)
Toilets
Photo Service
Drink Stations
Medical Assistance

Frequently Asked Questions

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Register now forThe One on the River - Henley
Price from
30 EUR
Register now

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