Page 2 of Triathlons in UK | September 2025 events calendar

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

Sat 27 Sep
£99-£120

Sat 27 Sep
£99-£120

Windsor, Buckinghamshire, UK

Dorney Triathlon | September | Standard

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

Chip timing
Enter online
Flat
PB
Age 17 & over

1500 m lake swimming
40 km road cycling
10 km road running

Sat 27 Sep
£58

Sat 27 Sep
£58

Windsor, Buckinghamshire, UK

Dorney Triathlon | September | Super Sprint

Take on a multi-activity or distance event and take the opportunity to race around this unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

Chip timing
Enter online
Flat
PB
Age 15 & over

400 m lake swimming
10 km road cycling
2.5 km road running

Entries closed

An award-winning triathlon on the incredible, unspoilt Hebridean Island of Kerrera, off Scotland's stunning west coast with the accessible marina and its facilities as the main hub.

Sat 27 Sep
£73-£98
Entries closed

Sat 27 Sep
£73-£98
Entries closed

Oban, Argyll and Bute, UK

Craggy Island Triathlon | Saturday

An award-winning triathlon on the incredible, unspoilt Hebridean Island of Kerrera, off Scotland's stunning west coast with the accessible marina and its facilities as the main hub.

Chip timing
Enter online
Undulating
Traffic free
Age 16 & over

600 m sea swimming
16 km mountain biking + 362 m ascent
8.5 km trail running + 234 m ascent

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

Sun 28 Sep
£45-£60

Sun 28 Sep
£45-£60

Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 13-14 years

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

Chip timing
Enter online
Age 13-14

400 m lake swimming
8.4 km road cycling
2.5 km road running + 69 ft ascent

Sun 28 Sep
£40-£60

Sun 28 Sep
£40-£60

Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 11-12 years

Get the family active in the award-winning castle grounds in a triathlon for all abilities - even beginners then celebrate with friends and family in the festival village.

Chip timing
Enter online
Age 11-12

300 m lake swimming
4.2 km road cycling
1.8 km road running

Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.

Sun 28 Sep
£245-£295

Sun 28 Sep
£245-£295

Edenbridge, Kent, UK

Hever Castle | Gauntlet Triathlon

Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.

Chip timing
Enter online
Age 18 & over

1.9 km lake swimming
90 km road cycling + 2392 ft ascent
21 km road running

Great Britain Age Group 2026 Team Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in an Olympic Triathlon in an event for all ability levels then celebrate after!

Sun 28 Sep
£125-£165

Sun 28 Sep
£125-£165

Edenbridge, Kent, UK

Hever Castle | Olympic Triathlon

Great Britain Age Group 2026 Team Qualifier. Get active in the award-winning grounds and surrounding Kent countryside in an Olympic Triathlon in an event for all ability levels then celebrate after!

Chip timing
Enter online
Age 17 & over

1.5 km lake swimming
40 km road cycling
10 km road running

Get active in the award-winning castle grounds in a triathlon for all abilities - even beginners - then celebrate with friends, family and other athletes in the festival village.

Sun 28 Sep
£50-£60

Sun 28 Sep
£50-£60

Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Triathlon 15-16 years

Get active in the award-winning castle grounds in a triathlon for all abilities - even beginners - then celebrate with friends, family and other athletes in the festival village.

Chip timing
Enter online
Age 15-16

500 m lake swimming
8.4 km road cycling
2.5 km road running + 69 ft ascent

Taking place from the wonderful North Sands, put your endurance to the test with a sociable and challenging seaside triathlon, to finish with a Salcombe Sprint Triathlon medal!

Sun 28 Sep
£65

Sun 28 Sep
£65

Salcombe, Devon, UK

Salcombe Brewery Co Sprint Triathlon

Taking place from the wonderful North Sands, put your endurance to the test with a sociable and challenging seaside triathlon, to finish with a Salcombe Sprint Triathlon medal!

Newcomers
Enter online
Event village
Coast
Fundraising optional
Age 18 & over

700 m sea swimming
19 km road cycling + 400 m ascent
3 km trail running + 90 m ascent

Sun 28 Sep
£73-£98

Sun 28 Sep
£73-£98

Oban, Argyll and Bute, UK

Craggy Island Triathlon | Sunday

An award-winning triathlon on the incredible, unspoilt Hebridean Island of Kerrera, off Scotland's stunning west coast with the accessible marina and its facilities as the main hub.