TriBourne Festival of Endurance
TM
From TriBourne Multisport Events
Sunday 20th July 2025
Past event
06:00
Eastbourne
£46.00–£399.00 · 9 races
Marathon, Middle Distance / 70.3, Iron Distance
Event summary
Get ready for an unforgettable day of endurance and excitement at the TriBourne Festival of Endurance, taking place on Sunday, July 20th, 2025, in the stunning coastal town of Eastbourne, East Sussex. Organised by the renowned TriBourne Multisport Events, this festival features an iconic Full Distance Triathlon, which has been celebrated as the South East Event of the Year and hosted the British Championships in 2024. Athletes can also participate in a Middle Distance Triathlon, Full and Middle Distance Aquabike events, as well as swim distances of 1.9km and 3.8km, and even a Marathon!
Experience the thrill of diving into the sea with a spectacular jump from the historic Eastbourne pier to kick off your swim, followed by a fast-paced cycling route through breathtaking National Parks. Runners will enjoy a flat course along the beautiful Eastbourne seafront, boasting less than 100m of elevation, making it ideal for athletes of all levels. With limited spots available, don’t miss your chance to be part of this exhilarating event. Secure your place today with Booking Protection for a worry-free experience. Join us for an epic day of competition and camaraderie at
Experience the thrill of diving into the sea with a spectacular jump from the historic Eastbourne pier to kick off your swim, followed by a fast-paced cycling route through breathtaking National Parks. Runners will enjoy a flat course along the beautiful Eastbourne seafront, boasting less than 100m of elevation, making it ideal for athletes of all levels. With limited spots available, don’t miss your chance to be part of this exhilarating event. Secure your place today with Booking Protection for a worry-free experience. Join us for an epic day of competition and camaraderie at
TriBourne Festival of Endurance
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Races
-
Full Distance Triathlon
Swim: 2.4miles Bike: 112miles Run: 26.2miles
Entries closed£369.00
-
Middle Distance Triathlon
Swim: 1.2miles Bike: 56miles Run: 13.1miles
Entries closed£199.00
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Full Distance Triathlon Relay
Team of 3Swim: 2.4miles Bike: 112miles Run: 26.2miles
Entries closed£399.00 per team
-
Middle Distance Triathlon Relay
Team of 3Swim: 1.2miles Bike: 56miles Run: 13.1miles
Entries closed£259.00 per team
-
Full Distance Aquabike
Swim: 2.4miles Bike: 112miles
Entries closed£199.00
-
Middle Distance Aquabike
Swim: 1.2miles Bike: 56miles
Entries closed£139.00
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3.8k Swim
Swim: 2.4miles
Entries closed£51.00
-
Eastbourne Marathon
Run: 26.2 miles
Entries closed£56.00
-
1.9k Swim
Entries closed£46.00
Event information
Iconic Full Distance Triathlon returns in 2025. South East Event of the Year and British Championships in 2024. From the organisers of the multi-award-winning Eastbourne Triathlon. Alongside this there will also be a Middle Distance Triathlon, Full and Middle Distance Aquabike, 1.9k Swim, 3.8km Swim and a Marathon!
Starting with an iconic jump from the end of Eastbourne's historic pier to begin your swim, followed by a fast cycle course taking in National Parks and finishing with a flat run route along the beautiful Eastbourne seafront with less than 100m of elevation.
Numbers are strictly limited so please don't delay or you risk the event selling out. We also offer Booking Protection so there really is nothing to lose and everything to gain by entering early!
Starting with an iconic jump from the end of Eastbourne's historic pier to begin your swim, followed by a fast cycle course taking in National Parks and finishing with a flat run route along the beautiful Eastbourne seafront with less than 100m of elevation.
Numbers are strictly limited so please don't delay or you risk the event selling out. We also offer Booking Protection so there really is nothing to lose and everything to gain by entering early!
The swim start is one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Perfect for...
Triathletes aiming to complete their first full-distance triathlon. Experienced Ironman athletes looking for an affordable alternative to the 'big branded events' and a fast course.
A relay option is also available for teams of three (one swimmer, one cyclist and one runner).
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 5:50am
Swim: 3.8km (sea)
Bike: 180km
Run: 42.2km (fast and flat)
Awards: First three male and female overall and first three male and female in every 5 year age-group.
Swim Route
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Route
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
Run Route
The run will head out and back along the gravel path before heading out and back along the lower prom, again towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap four times.
Perfect for...
Triathletes aiming to complete their first full-distance triathlon. Experienced Ironman athletes looking for an affordable alternative to the 'big branded events' and a fast course.
A relay option is also available for teams of three (one swimmer, one cyclist and one runner).
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 5:50am
Swim: 3.8km (sea)
Bike: 180km
Run: 42.2km (fast and flat)
Awards: First three male and female overall and first three male and female in every 5 year age-group.
Swim Route
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Route
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
Run Route
The run will head out and back along the gravel path before heading out and back along the lower prom, again towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap four times.
The swim start is one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Perfect for...
Anyone who wants to finish their first longer distance triathlon. Experienced athletes looking for an affordable alternative to the 'big branded events' and a fast course.
A relay option is also available for teams of three (one swimmer, one cyclist and one runner).
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 6:00am
Swim: 1.9km (sea)
Bike: 90km
Run: 21.1km (fast and flat)
Awards: First three male and female overall and first three male and female in every 5 year age-group.
Swim Route
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Route
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
Run Route
The run will head out and back along the gravel path before heading out and back along the lower prom, again towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap twice.
Perfect for...
Anyone who wants to finish their first longer distance triathlon. Experienced athletes looking for an affordable alternative to the 'big branded events' and a fast course.
A relay option is also available for teams of three (one swimmer, one cyclist and one runner).
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 6:00am
Swim: 1.9km (sea)
Bike: 90km
Run: 21.1km (fast and flat)
Awards: First three male and female overall and first three male and female in every 5 year age-group.
Swim Route
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Route
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
Run Route
The run will head out and back along the gravel path before heading out and back along the lower prom, again towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap twice.
The IronBourne Aquabike options are ideal for anyone wanting to take part in long distance mutisport events without the running. Both full (iron) and middle (70.3) distance options available.
Perfect for...
Competitors who prefer not to run. Triathletes suffering from running injuries.
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 6:00am
Swim: 3.8km or 1.9km (sea)
Bike: 180km or 90km
Run: 42.2km or 21.1km
Awards: First three male and female overall in each distance.
Swim Routes
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Routes
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
Perfect for...
Competitors who prefer not to run. Triathletes suffering from running injuries.
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 6:00am
Swim: 3.8km or 1.9km (sea)
Bike: 180km or 90km
Run: 42.2km or 21.1km
Awards: First three male and female overall in each distance.
Swim Routes
The swim start is set to be one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier!
Cycle Routes
If you wish to train on the course, we advise that you only ride the first 20 miles early on Sunday mornings as this section of the course can be busy with traffic at other times. On race day it will be very different; three sections of the course will be closed to traffic (but not the entire course). We have over 400 signs, 100 of which are designed specifically to educate drivers how to overtake bikes safely. We will also have 10 motorcycle marshals, over 30 static marshals and more volunteers on the bike course.
The swim start is one of the most iconic starts on the triathlon calendar, with a jump off the end of Eastbourne's historic pier! The 3.8km swim includes an "Aussie Exit" at the half way point.
Perfect for...
Open water swimmers. Ironman athletes wanting to practice the 3.8km swim ahead of an Ironman later in the year.
Key Facts
Date: Sunday 20th July 2025
Location: Eastbourne Pier
Start time: 6:00am
Swim: 1.9km or 3.8km (sea)
Awards: First three male and female and first three vetertan 40+ male and female.
Perfect for...
Open water swimmers. Ironman athletes wanting to practice the 3.8km swim ahead of an Ironman later in the year.
Key Facts
Date: Sunday 20th July 2025
Location: Eastbourne Pier
Start time: 6:00am
Swim: 1.9km or 3.8km (sea)
Awards: First three male and female and first three vetertan 40+ male and female.
The IronBourne Marathon will once again take place alongside the triathlon events and will consist of four laps, each of 10.55km.
Perfect for...
Marathon runners of all levels of experience from first-timers to experienced runners. Fast, certified course ideal for anyone looking for a 'good for age' time.
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 12pm
Run: 42.2km (fast and flat)
Awards: First three male and female overall and first three vetertan 40+ male and female.
Route
The run will head out and back along the lower prom towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap four times.
Perfect for...
Marathon runners of all levels of experience from first-timers to experienced runners. Fast, certified course ideal for anyone looking for a 'good for age' time.
Key Facts
Date: Sunday 20th July 2025
Location: Western Lawns, Eastbourne
Start time: 12pm
Run: 42.2km (fast and flat)
Awards: First three male and female overall and first three vetertan 40+ male and female.
Route
The run will head out and back along the lower prom towards Holywell. You then head out and back to the far eastern end of the prom. In total you complete the 10.55km lap four times.
Event video
Organiser's description
Iconic Full Distance Triathlon returns in 2025. South East Event of the Year and British Championships in 2024. From the organisers of the multi-award-winning Eastbourne Triathlon. Alongside this there will also be a Middle Distance Triathlon, Full and Middle Distance Aquabike, 1.9k Swim, 3.8km Swim and a Marathon!
Starting with an iconic jump from the end of Eastbourne's historic pier to begin your swim, followed by a fast cycle course taking in National Parks and finishing with a flat run route along the beautiful Eastbourne seafront with less than 100m of elevation.
Numbers are strictly limited so please don't delay or you risk the event selling out. We also offer Booking Protection so there really is nothing to lose and everything to gain by entering early!
Starting with an iconic jump from the end of Eastbourne's historic pier to begin your swim, followed by a fast cycle course taking in National Parks and finishing with a flat run route along the beautiful Eastbourne seafront with less than 100m of elevation.
Numbers are strictly limited so please don't delay or you risk the event selling out. We also offer Booking Protection so there really is nothing to lose and everything to gain by entering early!
Location
King Edwards Parade, Eastbourne, BN21 4, United Kingdom
TriBourne Festival of Endurance
TM
TriBourne Multisport Events
On Find a Race
Since
2016
Events
20+
Avg. review
4.9
