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Conquer The Chilterns Triathlon

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Stunning scenery

Festival vibes

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F3 events put on a fantastic triathlon around the Chiltern Valley. The organisation is superb, the participants get all the amenities they need but most importantly you will be conquering one of the most scenic triathlons. With a range of distances on offer there is something for everyone.

How to enter the Conquer The Chilterns Triathlon

  1. Middle Distance

    Triathlon: Swim 1.9km, Bike 86km, Run 20km
    Event passed
  2. Olympic Plus

    Triathlon: Swim 1.5km, Bike 55km, Run 10km
    Event passed
  3. Sprint Plus

    Triathlon: Swim 0.75km, Bike 30km, Run 5km
    Event passed

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Conquer The Chilterns Triathlon routes


Swim Course

The Swim takes place in the River Thames and navigates the world famous Henley Royal Regatta and Temple Island Meadows.

The swim will be in the River Thames. The swim is designed for every type of swimmer from beginners to experienced competitors.

The River has hardly any flow downstream for the event. The swim will start will be the River above Henley Management College. The swim will start upstream (keeping the Large Swim Buoys to your LEFT). Please only take your wetsuit, goggles, hat and timing chip to the start area.

Bike Course
The Bike is a 3 lap course with one large climb per lap. Anytime lost going up will certainly be made going back down the Stonor Valley, which stretches for nearly 5 miles directly into Henley.

Middle Distance Triathlon = 78km Bike (3 Laps)
Olympic Plus Distance Triathlon = 54km Bike (2 Laps)
Sprint Plus Distance Triathlon = 30km Bike (1 Lap)

The Route takes you through the historical Hambleden Valley and down the Stonor Valley on the way home.

Run Course

The Run course will be an undulating climb overlooking breath taking views and landscapes in the final section of the event.

Middle Distance = 20km (4 Laps)
Olympic Plus Distance = 10km (2 Laps)
Sprint Plus Distance = 5km (1 Lap)

Your number must be clearly visible on your front at all times.

Event Details

What’s Included
  • There will prizes for 1st, 2nd & 3rd overall Male and Female, 1st Vet (40+) Male and Female.
  • Bespoke Medals for ALL finishers.
  • Onsite car park
  • Chip timing
  • Sports cafe
  • Friendly marshals
  • Free parking
  • Secure baggage area
  • Toilets
  • Nutrition
  • 5-10m public liability
  • Music
  • Feed stations
  • Great location
  • Commentary
  • Prizes
  • Clearly marked course
  • Great event
  • Great atmosphere
  • Onsite retailers
  • Lead Cyclist
Raceday Logistics


06:30 - Event Car Park & Village Open

06:30 - Athletes Registration

06:30 - Transition & Bike Racking Open

07:15 - Middle Distance Race Briefing

07:30 - Middle Distance Start

07:45 - Olympic Plus & Sprint Plus Distance Race Briefing

08:00 - Olympic Plus & Sprint Plus Distance Start

16:00 - Event Closes to all Participants

Registration & the Transition Area will be open from 06:30am. You will be issued with your race numbers and be body marked. You must have your numbers visible at all times during the race. If we cannot see your number, you may not get a time.

At registration, you will be issued with a timing chip that is allocated to your race number. This chip will be affixed to a Velcro band. On race day, you must place the Velcro band around your ankle.

IMPORTANT: Wear your timing chip before starting the SWIM! NO TIMING CHIP = NO TIMING SPLIT OR FINISH TIME. If you lose it, we will charge you £10, SO DON’T LOSE IT.

If you lose your timing chip during the race, you will not receive timing splits, but we will endeavour to record a finish time for you if you shout your race number as you cross the finish line.

All participants must attend the event briefing. This will be held quarter of an hour before the start times.

The event briefing will be held by the Swim Start next to the River.
You should attend these in your clothing that you will be starting the event in ready to start the race immediately after the briefing.


To help with security, only competitors with numbers will be allowed in transition.

This is a split transition. This means that there are two transition areas

Transition Area One = Swim to Bike

Henley Management College Field - You will only need to drop off your bike. This is the transition area that you will go into after you complete the swim. It just needs all bike related equipment and will be accessed after you have completed the swim.

This is only in the opposite field - so do not worry if you forget something.

Transition Area Two = Bike to Run

Henley Showground Field & Main Race Area - this will only be needed for you to leave your running shoes and running related items. You will only access this transition after you have completed the bike section.


We encourage everyone to leave their bags either in the car or in the transition area.
Additional Baggage Drop will be in the main event marquee where you'll will be able to leave your belongings during the event


As soon as you have finished, please make sure you return your timing chip from your ankle to one of the marshals at the finish line. Failure to return this could result in a £10 charge to replace the timing chip.

There will be water just beyond the finish, where you can also get an instant read out of your results from the large screen available, and print them off for your journey home.

Full results will be available shortly after the last competitior has finished. All timing will be done by Stuweb timing systems.
Kit List


Wetsuits are compulsory, and must be fit for purpose, unless the water temperature is above 21.5 degrees. They must also be within the terms & conditions of the event, as set out by the Event Organisers under BTF rules & regulations.


Spectators are very welcome at this event.


Volunteers are vital to all the events organised by F3 Events throughout the year to enable those events to operate smoothly. Volunteers are the backbone of a successful event.

Perks of the job

  • FREE Entries for yourself or family member
  • FREE Food and Drink provided at all events.
  • Sufficient rest and breaks provided to ensure you do not miss out on any special part of the event you are volunteering for - just in case someone special is participating.
  • Event Clothing - T-shirt for the summer, Gillette or jacket for winter and visible Marshall waist-coat.
  • Opportunity to receive product support from sponsors and services from partners at preferential rates. Eg. Heron Lake Swimmers, Xterra Wetsuits.
  • Opportunity to promote any interests or businesses you work for or are involved with (subject to prior agreements with other businesses to ensure no conflict of interest)
  • Opportunity to meet and work with like minded people.
  • Receive praise and thanks for being part of the team, plus the satisfaction of making the participants event experience a positive and memorable one.

If you're interested in volunteering, please visit

Frequently Asked Questions

At what time does the Conquer The Chilterns Triathlon start?
The middle distance race begins at 7:30am. The Sprint Plus and Olympic Plus distance races begin at 8:00am.
When will registration and transition areas be open?
Athlete registration, the transition areas, and bike racking will be open from 6:30am.
Where can I find results for the Conquer The Chilterns Triathlon?
Once you have handed in your timing chip to one of the marshals, you will immediately be able to see your results on a screen and print off a copy. Full results will be uploaded when all participants have completed the race.
Have a question? Get answers from our team.

Conquer The Chilterns Triathlon weather forecast

Light rain in the morning and afternoon.

Predicted highs
Predicted lows
IconHigh chance of rain
IconModerate breeze possible, up to 10mph

Meet the organizer

F3 Events

Verified organizer

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F3 Events
Offering fun, friendly, family, fast and focused events across the South. F3 Events was set up in 2006 and has been one of the leading sporting event organisers along the Thames Valley for the past 10 years. Our mission is to organise, deliver and provide first class sporting events along the Thames Valley to aspiring athletes from complete beginners to elites athletes.

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Stunning scenery

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