"Harder than Ironman, Fairer than Ironman."

Andrew Fisher, First Isoman Champion. Click to read review

"Martyn Brunt of 220 takes on the Isoman..."

Click to read more

2017 Entries Now Open: Enter Here

The Isoman Full

7 Miles (11.2 km) Swim, 61.3 Miles (98.7 km) Bike, 26.2 Miles (42.1 km) Run

The Isoman Half

3.5 Miles (5.6 km) Swim, 30.6 Miles (49.2 km) Bike, 13.1 Miles (21.1 km) Run

The Isoman Quarter

1.75 Miles (2.8 km) Swim, 15.3 Miles (24.5 km) Bike, 6.55 Miles (10.5 km) Run

Results and Photos Now Available for 2016 - see menu


The Isoman Triathlon

Game Changer Zone 3

1st July 2017 - Arrow Valley Park, UK (B98 0LJ)

The Equaliser!

Do Something Different in 2017...Do Something Amazing!

Join the event that everyone is talking about and be there at the beginning. Don't miss out. Limited places available.

Voted game changer of the year 2016 by 220 Magazine readers.

Most triathlon events are biased mainly towards the cycling and to a slightly lesser extent towards the running. Iron distance pros for example will spend only 10% of the total time swimming, 54% of the time cycling and 36% of the time running. The aim of Isoman is to address this imbalance and create a triathlon for which all disciplines demand an equal level of excellence.
Pie Chart Pie Chart

The history of the first iron distance triathlon suggests that it was created out of a desire to see who was the fittest across the disciplines of swimming, cycling and running. They did this by bolting together 3 individual long distance events that existed on a particular island in the Pacific Ocean. They produced an amazing endurance event but never achieved their original goal!

To excel at Iron distance triathlon you must be an excellent cyclist/runner.

To excel in Isoman you need to be an excellent triathlete!

On Saturday 1st July 2017 in the heart of Worcestershire, centred at Arrow Valley Countryside Centre, we are running only the third ever Isoman triathlon event UK with the blue ribbon event being the full Isoman described above.

Be a part of the next chapter in the evolution of triathlon.

Isoman: Triathlon Equalized.

Want to know where the numbers come from?

Medal, Goody bag, T-Shirt and Party! And the chance to be part of this spectacular day of endurance!


All abilities welcome?

Not quite ready for the full Isoman yet? No problem - we have something for everyone with the half and quarter distances. Also, you can choose to do the event your way and pick and choose which distances of each of the disciplines you want to do. Or do them on their own!

One of our guiding principles with setting up Isoman was to make it inclusive, not only to elites, but to beginners alike and create a single day of endurance where individuals from the swimming, cycling, running and triathlon community can all come together and enjoy the sports we love.

For Full List of Events Click here

Single Discipline Events/Relays

These will take place throughout the day roughly in line with the triathlons, giving you the opportunity to compete in 1 or more of the disciplines - the choice is yours.

Isoman Zone3 Big Swim Isoman Speeds Cycle Isoman Newton Marathon

And because of the unique nature of our event, you will be able to compete with people doing a different discipline. So if your friend's a runner and you're a swimmer. Lay down the gauntlet and challenge him to fair duel!

If you have two friend's with different abilities then team up and do a relay! For the first time in triathlon, all legs of the relay will have an equal bearing on the result!

At the end of these single sport events we will put you all back together in a list and award a prize to the athlete who has the best time on any single event

See Full List of Events Here

Sign up/check out merchandise here!


Swim:The course involves 2, 4 or 8 laps of the Arrow Valley Lake with a nutrition jetty accessible on every lap.

Chip timing will also be available with an in water timing gate providing valuable split time intervals!

Bike:Each of the 3 courses is single lap (with some overlap in the course) with a nutrition and water station available on the full. This is a fast and beautiful course that takes into account the rolling hills of Worcestershire.

Chip timing will be available!

Run:The course involves 1, 2 or 4 laps of mostly flat, traffic free Arrow Valley Park with nutrition and water stations accessible on every lap.

Chip timing will be available with valuable split time intervals for each lap!

Party In the Park

Make sure you pack your dancing shoes. We'll have music all day with live music at the main stage in the expo field from 2pm onwards to welcome the athletes competing in the Isoman home.
Come and enjoy a beer or two and party the afternoon away! It is saturday afterall so no work in the morning!
There will be bouncy castles and other activities for the kids to take part in, so bring them along too! Whether you're taking part, watching loved ones or simply want to come and see what it's all about, you're all welcome.

Line Up

Completely Covered

The Mighty BACCHUS

Stuart Woolfenden

Music Like Lemons

dB Smith - Bluesman

Bloodwise - Our official Charity Partner

The party is being held in aid of Blood Cancers, and everyone is welcome. So come along, enjoy the show, drop a bit of your loose change in the buckets provided/buy raffle tickets and feel good that you're helping such a great charity. Isoman profits from the expo field will all be going to the charity. And if you're taking part in one of the challenges, then don't forget you can also raise money that way too. When registering, please leave the "Agree To Our Charity Partner Contacting you" checked and Bloodwise, formerly Leukaemia and Lymphoma Research will send you through a sponsorship pack.