By using this website you agree to our cookie policy

The Islander – Middle Distance Triathlon

Triathlon: Swim 1.9km, Bike 90km, Run 21km
  • (This event has been cancelled)
IconSuggest an edit

See any improvements? Be the first to make this page better.

Challenge Awards IconChallenge Awards 3rd Place 2019
Race in this scenic, yet formidable triathlon around the island of Mersea. Great for experience triathletes seeking a unique challenge, the 70.3 tri will allow you to behold almost every corner of the island. Come for the award-winning course or for the all-important finisher's medal.

Review summary

37 Reviews
  • Course
  • Organisation
  • Atmosphere


Kim R
"Very well organised. The location is excellent, Mersea Island and surrounding..."


Harry H
"I was really looking forward to taking part in this race as I grew up in the..."


Phil G
"Amazing original course, incredible organisation and friendly family crowd. The..."
See all reviews

The Islander – Middle Distance Triathlon route


This is a flat triathlon but the terrain is a mixture of road, sand and seawall making it a unique but challenging course. This event was voted as the Third Best Triathlon in the UK at the Let's Do This Challenge Awards 2019.


It is almost as if Mersea Island was created for this event. The run measures 21km, exactly the circumference of the island. There is stunning scenery all the way round, mixed terrain and no lap run.


The swim begins from the beach and is held at slack tide.


The cycle route takes competitors off The Island and along scenic Essex country lanes. Competitors will then head around Abberton Reservoir before turning back to the transition to begin the final leg.

Event Details

What’s Included
  • Finisher's t-shirt
  • Finisher's medal
  • Marshalled course
  • Aid Stations
  • Refreshment stations
Raceday Logistics


1100: Race begins

Please arrive at least 45 minutes before the start of the race in order to pick up your race pack and drop your bike.

Kit List

Competitors are expected to provide their own equipment including a bike in good working order and a wetsuit or a tri-suit.


The triathlon takes place on a Saturday, so you can make the most of your weekend and spend some time getting to know the local area.

There will be plenty of facilities and activities for families on the central beach.


There has been such amazing feedback in past years about the friendly encouraging volunteers at this event. Marshalls, first aiders, water safety and more are all loved volunteers that help make this event happen.

There are many more ways you could help make this event a success. Please email [email protected] to be part of the events team.


Frequently Asked Questions

Is there parking?
Yes, there will be plenty of parking available near the race start.
What facilities are there on race day?
There will be catering and toilet facilities onsite for supporters to enjoy and runners after the race.
What time and where does the race start?
The event kicks-off at 1100 from the Victoria Esplanade.
Have a question? Get answers from our team.

Is your question about booking your place? See our Help Center

The Islander – Middle Distance Triathlon weather forecast

Mostly cloudy throughout the day.

Predicted highs
Predicted lows
IconLight breeze possible, up to 7mph

Meet the organizerIcon

Island Races

Verified organizer

View website
Island Races
Organizer leaderboard ranking badge


Island Races are ranked #28 in the UK out of 241 organizers

Island Races has hosted a Sprint Triathlon for the last 8 years. It is a sporting event company enthusiastic about introducing a series of triathlons, duathlons, SUP races, Open Water Swims and more harnessing the natural characteristics of Mersea Island and the surrounding areas. We welcome complete beginners and seasoned athletes, seeing people challenging themselves and having fun at the same time.

Top contributors

Members of the community who’ve improved this page and contributed to its accuracy.

Be first to contribute.

The Islander – Middle Distance Triathlon reviews (37)

4.7 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the Middle Distance Triathlon in 2019

    Very well organised. The location is excellent, Mersea Island and surrounding area are a gem. A varied course. Excellent before and after care.
  • H

    Harry H

    Did the Middle Distance Triathlon in 2019

    I was really looking forward to taking part in this race as I grew up in the local area and have since moved away, but unfortunately I had to drop out just days before as I contracted tonsillitis.

    I asked Island Races what I could do about it but was told they had no withdrawal policy - effectively it was either turn up, or don't.

    I understand this is the case with many triathlon events, but I'm not sure why? No one should be exposed to the choice of losing their entry fee or potentially putting their health at risk by competing when ill.

    I really believe that when these events charge £130 there should be a withdrawal/transferal/deferral policy in place. Instead I am left feeling like I have just thrown away a substantial amount of cash through no fault of my own.

    I appreciate there is a big cost to putting these events on but surely there should be a plan in place for when competitors can't take part. The London Marathon, Great North Run, Cardiff Half all have policies but it doesn't seem to be the case in triathlon.

  • P

    Phil G

    Did the Middle Distance Triathlon in 2019

    Amazing original course, incredible organisation and friendly family crowd. The finish area felt like a festival. A Bucket list must
  • D

    Dave J

    Did the Middle Distance Triathlon in 2019

    Absolutely Loved this half distance, I got a PB & my wife’s first half and she loved it BNY 2020👍👍👍
  • Did the Middle Distance Triathlon in 2019

    The Islander -what a great race !
    Well organised, the swim was amazing in calm warm water, fast scenic bike course, the run around the island was slightly more challenging with some tough sections over the beach. Overall I would say highly recommended and i'll definitely be back for 2020.
  • J

    John M

    Did the Middle Distance Triathlon in 2019

    Brilliant event, super friendly team, well organised. The island run was epic. Great to make a weekend out of it on Mersea island and bring along the family
  • Did the Middle Distance Triathlon in 2019

    This is a fantastic event; it's welcoming, well organised and also challenging. Each discipline is unique but accessible for a range of abilities. If you like triathlon, you'll love this event!
  • R

    Rob F

    Did the Middle Distance Triathlon in 2019

    Having done a few triathlons at this distance before this has to be up there with one of the best. Just such a well organised event and also beautiful course.
  • C

    Charlie G

    Did the Middle Distance Triathlon in 2019

    That beach run at the end was pretty challenging but being the trooper I am I pushed through the pain barrier to finish and collect that gorgeous medal at end.
  • J

    Jamie M

    Did the Middle Distance Triathlon in 2019

    This was my first middle distance triathlon and it was amazing to be so local to me. A great event and fantastic race
IconSomething missing?

We're rebuilding our event pages and would love your input. Please suggest anything you would like to see on this page.

This event has been cancelled


View this event on the organizer’s websiteEvent info on organizer's site

ViewView website

© Let's Do This 2020