The Mid Sussex Triathlon is a labour of love, run by the enthusiasts at the Mid Sussex Triathlon Club.

The friendliest tri in the south!

Our objective is to make this a great race, so the emphasis is on a relaxed atmosphere where you can simply enjoy the event. We get a real buzz as club members marshaling on the the day - it's a pleasure to support new athletes and old. We like to think our feedback indicates the pleasure people get from the day: read more below.

Everyone is welcome

We want our race to be as affordable as possible, so we keep the entry fee as low as possible. 

We love welcoming new people and we have a long tradition of encouraging novices to get to the start line. We run a sprint distance Triathlon, an Aquabike for non-runners and after a very successful introduction we are keeping the Try-a-Tri half-distance event, ideal for beginners or those returning after injury. Read more on our Try-a-Tri page.

We're happy to answer questions and provide tips for beginners, and we also aim to offer a course familiarisation day when you can try the bike and run routes. On race day, our marshals are known for their patience helping people.

Equally, this well-designed course appeals to experienced athletes, and many of our seasoned competitors come back year after year to compete.

We were delighted to welcome visually impaired teams in 2018 and 2019 and we'd like to see again in the future. We've also brought back relays, for those who are not able or confident enough to attempt the whole race.

Well organised and great value

Our race is great value because we're not running a commercial venture. We have not put up our prices in several years and we have one of the lowest entry prices in the region, which includes free photos, a fantastic bespoke wooden medal and plenty of goodies. We have chip timing.

In addition, as fellow triathletes, we know that injuries occur and circumstances change, which is why we offer a full refund (less any bank charges) if you enter but can't take part. Duplicate entries made in genuine error will also be refunded in full. See our T&Cs for more info.

Your words, not ours

Every year, we receive a huge amount of positive feedback from our athletes. Read what they have to say.