Henley Triathlon
Henley-on-Thames, United Kingdom · June · Independent (UK Triathlon)
Course: 0.4 km (0.2 mi) swim, 25 km (15.5 mi) bike, 5 km (3.1 mi) run. 400 m (0.25 mi) pool swim, 25 km (15.5 mi) bike, 5 km (3.1 mi) run
Why people love it
- 400 m (0.25 mi) indoor pool swim with a swimmer starting every 30 seconds and no contact.
- First-timers call it newcomer-friendly, with friendly marshals.
- Mainly flat 25 km (15.5 mi) bike over two laps.
- Four laps of a school field make the 5 km (3.1 mi) run easy for family to watch.
- Henley town centre is close for food after the race.
Watch out for
- Split transition between the leisure centre and the school field.
- Parking closes at 08:30 and cars cannot leave until 11:30.
- Reviewers report potholes and shaded patches on the open-road bike.
- Grass run laps have little shade on a hot day.
- Reviews are from 2022 and 2024; the 2026 date is not confirmed.
Race
How racers feel about it, how well it is run, and how it treats a first timer. Counts for 30% of the overall score.
Toughness: Moderate
- Racer satisfactionLoved3.9
Racecheck shows 29 ratings at 4.5 but written reviews average about 4.1, with complaints about a split transition and slow results. · Medium confidence
- OrganizationWell run3.6
Reviewers report a split transition, a bag mix-up, an inaudible pool briefing and slow results, despite friendly marshals. · Medium confidence
- First timer friendlyFriendly4.3
Several first-timers call it good for newcomers: friendly marshals, a pool swim and a flat bike. · Medium confidence
Course traits, not part of the score
- PR potentialFast3.5
Mainly flat 25 km (15.5 mi) bike and flat grass run, but split transition and open roads slow things. · Low confidence
Swim
Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 16% of the overall score.
- Water temperatureComfortable4.0
Indoor leisure centre pool; temperature not published, and water quality was rated 5 out of 5 on Racecheck. · Low confidence
- Swim easeEasy4.3
Time-trial start means no contact; only length counting and a hard-to-hear briefing to manage. · Medium confidence
- Swim experienceGreat3.5
Functional leisure centre pool; a reviewer liked the swim and transition. · Medium confidence
- Swim supportGood4.3
Indoor 25 m (82 ft) pool with a swimmer every 30 seconds and no contact; swimmers count their own lengths. · Medium confidence
Bike
Road surface, closures, scenery and wind. Counts for 18% of the overall score.
- Road surfaceMixed2.7
Two reviewers warn of potholes, one on a dark descent. · Medium confidence
- Road closuresMostly open2.0
Open roads with safety marshals who do not give directions. · Medium confidence
- Bike sceneryPleasant3.3
Rural Oxfordshire lanes; reviewers did not rave about the view. · Low confidence
- WindSome wind3.3
No wind information available. · Low confidence
Course traits, not part of the score
- Bike speedFast3.6
Mainly flat with undulations over two 12.5 km (7.8 mi) laps. · Low confidence
- Bike flatnessMostly flat3.6
Organiser says mainly flat with undulations; no elevation figure published, estimated 100 to 150 m (330 to 490 ft). · Low confidence
- Bike simplicitySome technical parts3.2
Two right turns, a narrow section and a final 200 m (660 ft) in school grounds with the public nearby. · Medium confidence
Run
Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
- Crowd supportDecent3.4
Four run laps near the finish make it easy for family to watch, no big crowds reported. · Low confidence
- Aid stationsStandard3.2
One feed station passed each run lap plus one at the finish with High5 and water. · Medium confidence
- Run sceneryPleasant2.6
Four laps of a school playing field; one reviewer wanted a more interesting run. · Medium confidence
- Run conditionsModerate3.0
Hot sunny grass laps with little shade drew complaints; flat and short. · Medium confidence
Course traits, not part of the score
- Run flatnessMostly flat4.2
Flat playing-field grass loops of 5 km (3.1 mi). · Medium confidence
Conditions
Air temperature, how predictable the weather is, setting, and spectating. Counts for 13% of the overall score.
- Air temperaturePleasant3.7
Early June highs about 18 to 22 °C (64 to 72 °F), but reviewers report hot sunshine. · Low confidence
- Weather reliabilityVariable3.0
English summer weather; hot days reported, no cancellations known. · Low confidence
- Venue beautyPleasant3.0
School grounds and leisure centre; functional. · Medium confidence
- Spectator friendlyEasy4.2
Reviewers say it is easy for spectators; laps in one field with grass seating and refreshments. · Medium confidence
Course traits, not part of the score
- Low altitudeSea level4.8
About 50 m (160 ft) above sea level. · Medium confidence
Stay and travel
Hotels, walkability, getting there, and the town around the race. Counts for 10% of the overall score.
- Hotel availabilityGood3.8
Henley has plenty of hotels, but regatta season books up. · Low confidence
- Hotel valueNormal3.0
Henley is an expensive town in summer. · Low confidence
- WalkabilitySome driving3.4
Parking on the school field next to registration, but the transition is split between pool and field. · Medium confidence
- Travel easeEasy3.8
About 45 km (28 mi) from Heathrow, trains to Henley and Reading nearby. · Medium confidence
- LogisticsSome complexity2.8
Split transition between leisure centre and school field; parking closes at 08:30 and cars cannot leave until 11:30. · Medium confidence
- Town and foodGood4.4
Henley-on-Thames is a lively riverside town. · Medium confidence
Key facts
- Location
- Henley-on-Thames, Oxfordshire, United Kingdom
- Typical month
- June
- Latest or next date
- 6 June 2027
- Organiser
- Independent (UK Triathlon)
- Distances (non-standard)
- 0.4 km (0.2 mi) swim, 25 km (15.5 mi) bike, 5 km (3.1 mi) run
- Swim venue
- Henley Leisure Centre pool (25 m, indoor) (pool)
- Wetsuit
- Not applicable (pool)
- Swim start
- staggered time trial, one swimmer every 30 seconds
- Swim laps
- 16 lengths of 25 m
- Bike laps
- 2
- Run laps
- 4
- Run shade
- little
- Air temperature
- 12–21 °C (54–70 °F)
- Altitude
- 50 m (165 ft)
- Nearest airport
- London Heathrow (LHR), 45 km (28 mi) away
- Where to stay
- Henley-on-Thames town centre
- Booking
- Day-trip race; Henley accommodation is dear in summer.
What racers and reviewers say
- RacecheckRaced 2022 · aggregator · Mixed
Ten written reviews from 2022 and 2024 (eight sprint) average about 4.1 out of 5, with 29 ratings overall at 4.5. Several first-timers say it is good for newcomers with friendly marshals and a pool swim. Complaints concern potholes and shaded patches on the bike, hot grass run laps with no shade, a split transition, a bag mix-up, an inaudible pool briefing and slow results.
Raced Henley Triathlon? Your notes on the course, conditions and logistics help the next athlete decide.
Sources
Pages we used for facts and ratings. See how we rate.
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