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Challenge Awards IconChallenge Awards Winner 2019
Soak up the summer sun and take in the London sights during this 2 day triathlon festival. Participants will love the support of the 30,000 strong crowds along the course and, for an extra challenge, sign up for triathlons on both Saturday and Sunday. Come for the tech t-shirt and finisher's medal.

Review summary

157 Reviews
  • Course
  • Organisation
  • Atmosphere


Kathryn L
"I thought the organisation was incredible, this was my first triathlon so..."


Dave F
"I've just done my 14th London Triathlon in a row and have already registered an..."


Waleed D
"It was my first time participating in a olympic distance triathlon and it was..."
See all reviews

How to enter the The London Triathlon

  1. Olympic Saturday

    Triathlon: Swim 1.5km, Bike 40km, Run 10km
    Event passed
  2. Sprint Saturday

    Triathlon: Swim 0.75km, Bike 20km, Run 5km
    Event passed
  3. Super Sprint Saturday

    Triathlon: Swim 0.4km, Bike 10km, Run 2.5km
    Event passed
  4. Olympic Plus Sunday

    Triathlon: Swim 1.5km, Bike 80km, Run 10km
    Event passed
  5. Olympic Westminster

    Triathlon: Swim 1.5km, Bike 40km, Run 10km
    Event passed

The London Triathlon routes

All competitors will swim in the Royal Victoria Dock and run around the London Docklands, cheered on by the 30,000 strong crowd. The bike route varies depending on the distance, day and category you choose.

There are 2 different bike routes for our Olympic distance competitors:

  • Saturday Docklands Route – 4 laps turning at Leamouth Roundabout.
  • Sunday Westminster Route – 1 long lap turning at Big Ben followed by 1 short lap turning at Billingsgate.

Take a look at the map below to find out where the different routes go & also keep scrolling down to have a look at the swim and run course, this is the same course for both routes

Event Details

What’s Included

Your Entry Includes:

  • Free Event Tech-T
  • Free event branded swim hat
  • Finisher’s medal
  • Event race pack (inc race number, bike number, timing chip)
  • On-course nutrition
  • Post-event hydration
  • Training Guides
  • Timing service including tracking, text message, and online lookup
  • Stunning closed road course

You must be 17 years old or over, as of the 31st December of the year you are competing, to compete in the main triathlon.

Raceday Logistics

Road Closures On The Day

To ensure the safety of large numbers of triathletes taking part in the AJ Bell London Triathlon, road closures will be in place over the weekend of 4th and 5th August 2018. We have worked closely with Transport for London (TfL), the Metropolitan Police and all relevant councils in the planning of these closures to ensure we keep disruption to a minimum.

Upon Arrival You Should:

  • Follow signs to the Race Pack pick up in the South Hall – entrance door S7.
  • Remember you will require your photo ID and BTF membership card (if applicable) to collect your race pack.
  • Go to the race pack desk applicable and show your photo ID.
  • You will receive your race pack and your timing chip, which will become your responsibility until you hand it back at the finish line. Due to the costs of the technology, there will be a £20 charge if you lose your timing chip once in your possession.
  • Once you have collected your race pack, attach the timing chip to your ankle, make your way to the Bike Check at the entrance to transition to rack your bike. Transition is a high-security area. Access will only be given to those competitors wearing security wristbands.
  • Please have your helmet fastened on your head at the Bike Check, as this will help speed up your entry to transition.
Kit List

Event Day Check List:

  • Security wristband (and Team Meeting Point wristband for relay teams)
  • Photo Identification (e.g. driver’s licence, passport) to collect your timing chip
  • Race numbers correctly fixed to bike, helmet, and clothing (race belt recommended)
  • Wetsuit
  • Goggles (compulsory for the swim)
  • Towel
  • Bike
  • Bike Helmet
  • Bike Insurance (recommended but not compulsory)
  • Cycle shoes (if you have them)
  • Bike water bottle
  • Running shoes
  • Warm clothing for afterward
  • Energy Bar/Gels
  • GPS multi-sport watch


The triathlon-specific wetsuits will not only keep you warm but will also help you swim faster as it provides you with extra buoyancy. Surf and shortie wetsuits are allowed, but these are totally different to a triathlon specific wetsuit, which is designed for open water swimming and fits like a second skin.


If you haven’t already done so, the easiest way to hire a wetsuit for the day is to visit Zone3 where you can get an award-winning Zone3 wetsuit for the day. We strongly advise you to swim in your wetsuit before the event. Practicing getting out of the wetsuit will help with your transition on the day too.

*You will be given a swim cap at Swim Assembly so no need to bring your own, but googles are compulsory and aren’t provided.*Bike

Fixed wheel bikes (bikes that use the pedals as a brake) are not permitted in the race. Your handlebars must not have bare open metal ends. Please obtain stoppers to plug them before coming to the race. BTF referee bike checks can potentially stop you competing.

Bike Helmet

*A bike helmet is compulsory.*

Approved cycling safety helmets of ANSI Z90.4, SNELL B90, EN 1078 or an equivalent national standard must be worn by competitors. (NOTE: a CE mark is NOT an approval mark).

NB: any helmet bought in recent years will comply but check for damage which would stop it protecting you properly.

Triathlon Insurance

Be prepared with PedalSure our Triathlon Insurance Partner who will provide you with a 20% discount to cover you and your bike. Don’t let an accident or theft create an obstacle to your training or event day.

Removal of Equipment

You will be able to remove your bike from Transition immediately after racing and you must remove your bike and equipment from Transition within 1.5 hours of finishing and prior to the venue closing times. The organisers reserve the right to remove any equipment left in transition beyond the above times. The Support Team will check the bike number against the wristband number before it is released.

*One of our biggest issues post-event is caused by people taking the wrong wetsuit from Transition, please take a few seconds to check that you have your own wetsuit, most are black and look very similar.*


Drafting is not allowed at the triathlon – anyone caught drafting outside of the Elite field will be disqualified from the event.

Drinks & Nutritions On Course

Leading sports nutrition company Science in Sport (SiS) will be providing some of their award winning nutrition products to fuel your performance at the water station on the Run Course and at the finish. Please get used to re-hydrating as part of your training. Remember it is vital to drink regularly during and after exercise.


The AJ Bell London Triathlon is a great day out for both athletes & spectators! We always encourage friends and family to come down, cheer on the triathletes & help create the incredible atmosphere London is famous for. Inside the ExCeL, you’ll find a great selection of food & drink, a bar, exclusive deals from our sponsors, and a new Kids Zone to keep the little ones entertained. It’s completely free for all spectators to enter the ExCeL on the day.


Spectators can view the whole of the swim course from the dock edge, next to the start pontoon. You can access the dock edge, via the stairs or lift located on the South side of the main hall (this will be directly in front of you as you enter via Race Pack Pick Up). Look out for the ‘Spectator Viewing’ hanging banner against the back wall.


Either head towards the Aloft Hotel on the East side of the ExCeL, or behind the Fox Pub underneath the walkway to Custom House on the West side of ExCeL, for the best view of the bike course around the building.


The East Car Park is the best place to grab a spot and watch the run from. With the charity cheer marquees, loud music and plenty going on, this area has an all-day party atmosphere. Triathletes need to complete laps of the run course, so this is a great spot to high-5 your loved ones a few times.


As your athlete starts their final lap, we suggest you make your way to the finish line and grab a seat in one of the finish line grandstands – it’s an electrifying atmosphere! Make sure you cheer as loud as you can as your athletes cross that all-important finish line.

I have a disability can I still participate?

We are an all-inclusive event and do our utmost to accommodate participants with disabilities.  Please contact our Customer Service Team, [email protected] with a description of your disability. We will assess this and establish if it is possible to compete and what we require to make this feasible.

When will I find out my start time?

Start times and wave allocations can be found in two specific locations:

  • On our official website two weeks prior to the event
  • In your race pack which is delivered no later than two weeks prior to the event
When should I receive my race pack?

Your race pack will be ready and waiting for you to collect at the event, please check our website for your start time.

What is contained in my race pack?

Your race pack will contain your race information guide, race number, bike and helmet stickers, transition wristband, and your welcome letter with your wave start time.

If any of the items listed above are missing please come to the Help Desk on the day of the event and our friendly customer service team can issue new items. You will receive your swim cap at Swim Assembly on the day of your race.

Do I need a wetsuit?

A wetsuit is compulsory and it is your responsibility to ensure you have one on race day. If you haven’t already done so, the easiest way to hire or buy a wetsuit for the day is to visit All wetsuits are made by Zone3, the event’s official swim partner and the world’s leading wetsuit manufacturer. The wetsuit will not only keep you warm, but will also help you swim faster as it provides you with extra buoyancy. Surf and shortie wetsuits are allowed, but these are totally different to a triathlon specific wetsuit, which is designed for swimming and fits like a second skin.

Can I listen to a personal music player whilst racing?

No. You will be unable to hear other competitors or the marshals when you are wearing one and consequently pose a threat to others.

Is water available during the races?

Water will be handed out on the run course and at the finish line. There will be no water stations on the bike course – it is your responsibility to ensure that you have enough fluid to keep yourself hydrated on the bike leg.

How can I find out my finish time?

For instant results you can click on the website and click on the ‘track my runner’. This will enable you to see all of your live results and compare them to other competitors.

All results will be posted on our website at the end of each day of the event. Additionally, if you have provided a correct UK mobile number in your application, you will receive a text message with your result.

How do I buy a photograph of myself crossing the finishing line?

Marathon Photos are our official photographer for the event. Please go directly to their website to retrieve your photos and further information.

Who do I contact for lost property?

Please contact the event organisers via email, [email protected], with a full description of the missing item and we will do our best to reunite you with the item

The London Triathlon weather forecast

Clear throughout the day.

Predicted highs
Predicted lows

Meet the organiser

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The London Triathlon reviews (157)

4.5 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • A


    Did the event in 2019

    This was quite different from all the countryside triathlons, but in a good way! Easy to park really close to the event, and the use of nice toilets for changing instead of a portable loo! I loved the music and vibe on the run too, when you needed that extra boost, and the crowd cheering you in!
  • W

    Waleed D

    Did the Olympic Westminster in 2019

    It was my first time participating in a olympic distance triathlon and it was such an awesomeee experience!! Absolutely love it!!
  • K


    Did the Super Sprint Saturday in 2019

    It was my fourth super sprint race. amazing vibes and really well organised. Even swimming on the dock didn't feel that bad because of the great atmosphere.

    feedback to the organisers: please consider putting back the little carper in the transition area. It was really tough running with the cleats on, on the cement floor, during transitions.

  • S

    Simon C

    Did the Olympic Saturday in 2019

    All very good from a competitors point of view. The only gripe was from my supporters who said it was not easy to find their way outside to see the bike and run (swim was easy)
  • C

    Craig R

    Did the Olympic Saturday in 2019

    It was definitely down from previous years, less stalls and things to do, for athletes the domes that were at the finish the last 2 years were missed this year, nowhere for me to check my time as I finished!
  • K

    Kris F

    Did the Olympic Saturday in 2019

    Great tri but needed more to fill the hall.
    The tent at the beginning was like a green house in the heat. It was the first year you did this, I'd rather just have a small pen area.
    Bike ride is good but the run atmosphere is better.
  • Did the Olympic Westminster in 2019

    I've just done my 14th London Triathlon in a row and have already registered an interest for next year's event... it's become the point of reference for my fitness and thanks to the excellent course and organisation my 'must do' event each year.
  • C

    Christopher S

    Did the Super Sprint Saturday in 2019

    Fantastic organisation, enthusiastic crowd, brilliant atmosphere
    Stunning and scenic course with a great finish line
  • B

    Bruce S

    Did the Sprint Saturday in 2019

    Three years ago following an ankle operation I was told I would never run again! When a friend suggested I could take part in the London sprint Triathlon I couldn’t resist it. It was the perfect race for a comeback with people on the course throughout the day I never felt I was left behind, the organisation and volunteers were absolutely outstanding, I would love to return to London next year! Best race I’ve ever done !
  • Did the Olympic Saturday in 2019

    I thought the organisation was incredible, this was my first triathlon so having it made really clear to me what I needed to was extremely helpful! I also found all the staff really helpful and welcoming which calmed my nerves. I will certainly be back next year to beat my time!
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