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South Coast Triathlon

Race like the Pro's in the World Series in an exhilarating British Triathlon sanctioned draft legal triathlon, on a closed to traffic multi lapped course.

All distances on the day will be draft legal so you don't have to worry about maintaining a 10 metre gap between you and the cyclist in front. An ideal triathlon experience whether you are a complete beginner or a seasoned triathlete.

Click here to enter

Date: Saturday 10th August 2019
Venue: Martello Fields, Seaford, East Sussex, BN25 1JX
Swim: Sea
Olympic & Relay: 1500m swim - 40k cycle - 10k run
Sprint & Relay: 750m swim - 20k cycle - 5k run
Super Sprint & Fun: 200m swim - 10k cycle - 2.5k run
Minimum Age: 14 years for Fun, Super Sprint, Sprint & Sprint Relay distances
16 years for Olympic Relay team members
17 years for Olympic distance individuals
Entry fees from:

£64.50 (non BTF)  until 30 June

£69.50 (non BTF)  from 1 July onwards

Please Note: Competitor Race Day Information (Individual Start Times, Bib Numbers etc) will be emailed out to competitors 7-10 days before the event.
Don't want to go it alone? Take part as a relay team of 2 or 3 and share the challenge of swim, bike and run!


For more information, see the sections below:

The Event

The race offers not only a spectacular seaside venue, but is also a perfect spectator friendly course, ideal for family and friends who come along to support you and watch the non stop action in a fun and relaxed atmosphere. The venue guarantees large crowds to cheer you along whilst you swim, cycle and run. A great weekend or day out for all!

  • Fantastic coastal and spectator friendly venue
  • Chip Timed
  • Open water sea swim
  • Flat, closed to traffic bike course
  • Scenic promenade run
  • All abilities welcome from novice to pro-triathlete
  • 2018 finishers medal for all entrants
  • Prizes for top 3 male and female triathlete in all races as well as age group prizes in the Sprint and Olympic Triathlon
  • Entries open to 14+ yr olds in the Sprint, Super Sprint & Fun distances
  • South Coast Run follows this event on Sunday 29 July with 1/2 Marathon, 10k and 5k Fun Run

Wave times

09.00am Olympic & Relay
10.00am Sprint & relay
11.15am Super Sprint & Fun

Competitor Race Day Information

Please take some time to read all the event information, it will make it far more enjoyable for you and reduce the need to ask questions on the day. Good luck and have a great day!

Race Day Information 2018

You can use this information as a guide for your 2018 event. Full and up to date 2018 competitor race day information with your race number and start time will be emailed to you 7-10 days before the event.

WE DO NOT POST ANYTHING OUT - you will collect your race numbers, tattoos, stickers etc. at registration on the day.


I competed in my first triathlon this year at Seaford.

The organisers and the support staff were the most fantastic people! From the guy who tied my shoelaces just before the cycle start line, to the young girl cheering us through to the finish line, these people were helpful, supportive, friendly and soooo happy! It is down to them that I am going to come back again next year! Please pass on my thanks & gratitude.x


I just wanted to take a few minutes to thank you

And all the staff for the wonderful event. It was my first Triathlon and i was very nervous. I have to say that I was so touched by the encouragements, dedication, professionalism and kindness of the people over there. It was just awesome, fun and unforgettable! I will definitely do it again next year and bring some friends and family. That was just perfect! Thank you,


Just wanted to say how extremely impressed

I was on the organisation of the South Coast Triathlon. Particularly impressed with the compere at the finish line who managed to announce names of competitors as they came through the finish and also where they came from, such a personal touch. I really don't know how he did it, with 3 races going on and also a relay.


Become a British Triathlon Home Nation member today

✓ Insurance and legal support for training and racing 
✓ Reduced entry fees across permitted triathlon, duathlon and related multi-sport events
✓ Opportunity to win Home Nation and British titles and to represent GB internationally
✓ Exclusive discounts from leading partner brands


Entry Form


South Coast Triathlon 2019


(Price per race entry)

Please select your race from the drop down list below. The price will adjust automatically.

Telephone Entry

If you would prefer to enter over the phone please call

01270 842800 and secure your place today!

(Lines are open Monday to Friday, between 9:30am-3:00pm).

South Coast Triathlon Venue