Open Water Swimming at Merchant Taylors' School
19 Apr
Open Water Swimming at Merchant Taylors' School
Organised by: ATW
Mallory Park - Swim, Bike, & Run Training
01 Jun
Mallory Park - Swim, Bike, & Run Training
Organised by: ATW
ATW Stewartby Lake Triathlon & Aquabike
15 Jun
ATW Stewartby Lake Triathlon & Aquabike
Organised by: ATW
Alresford 10k
15 Jun
Alresford 10k
Organised by: Alresford Rotary
Dinton 5km & 10km Summer Series
19 Jun
Dinton 5km & 10km Summer Series
Organised by: Barnes Fitness
Springfield Striders Friday Night 5
20 Jun
Springfield Striders Friday Night 5
Organised by: Springfield Striders
St Albans Summer Solstice 10K #BeatTheSunset
20 Jun
St Albans Summer Solstice 10K #BeatTheSunset
Organised by: St Albans Striders
Triffic Trail, London
22 Jun
Triffic Trail, London
Organised by: Trent Park RC
Twyford Kids Triathlon
22 Jun
Twyford Kids Triathlon
Organised by: Barnes Fitness
ATW Children’s Triathlon Mallory Park - June
28 Jun
ATW Children’s Triathlon Mallory Park - June
Organised by: ATW
SUPER SERIES - ATW - Mallory Park Heats & Finals
28 Jun
SUPER SERIES - ATW - Mallory Park Heats & Finals
Organised by: ATW
Silsoe Stride
29 Jun
Silsoe Stride
Organised by: Silsoe Stride 2025
Wargrave 10K & Fun Run
29 Jun
Wargrave 10K & Fun Run
Organised by: Barnes Fitness
Bicester Junior Triathlon
29 Jun
Bicester Junior Triathlon
Organised by: Bicester Triathlon Club Juniors
ATW Triathlon - Mallory Park - June
29 Jun
ATW Triathlon - Mallory Park - June
Organised by: ATW
Midweek Dorney Triathlon - July
02 Jul
Midweek Dorney Triathlon - July
Organised by: ATW
ATW Odyssey Triathlon
05 Jul
ATW Odyssey Triathlon
Organised by: ATW
ATW Odyssey Aquabike
05 Jul
ATW Odyssey Aquabike
Organised by: ATW
ATW Odyssey12
05 Jul
ATW Odyssey12
Organised by: ATW
ATW Bristol Triathlon
06 Jul
ATW Bristol Triathlon
Organised by: ATW
ATW St Neots Triathlon - Race 2
06 Jul
ATW St Neots Triathlon - Race 2
Organised by: ATW
The Bishop's Stortford Mitre 10k, 5k & 1K
06 Jul
The Bishop's Stortford Mitre 10k, 5k & 1K
Organised by: The Bishop's Stortford High School
SUPER SERIES - ATW - Bristol Sprint Triathlon
06 Jul
SUPER SERIES - ATW - Bristol Sprint Triathlon
Organised by: ATW
Tri and Paratri Festival 2025
12 Jul
Tri and Paratri Festival 2025
Organised by: Arctic One
Dorney Triathlon - July
13 Jul
Dorney Triathlon - July
Organised by: ATW
Tri-Force Juniors Triathlon 2025
13 Jul
Tri-Force Juniors Triathlon 2025
Organised by: Tri-Force Juniors
Castle To Coast Triathlon
19 Jul
Castle To Coast Triathlon
Organised by: ATW
Hathersage Hilly Triathlon
20 Jul
Hathersage Hilly Triathlon
Organised by: sheffieldtriclub.com
Eton Dorney Family Triathlon
20 Jul
Eton Dorney Family Triathlon
Organised by: Barnes Fitness
ATW St Albans Summer 10K
20 Jul
ATW St Albans Summer 10K
Organised by: ATW
Dorney Triathlon - July
27 Jul
Dorney Triathlon - July
Organised by: ATW
ATW Colchester Friday Night Runs
08 Aug
ATW Colchester Friday Night Runs
Organised by: ATW
Dorney Triathlon - August
09 Aug
Dorney Triathlon - August
Organised by: ATW
ATW St Neots Triathlon - Race3
10 Aug
ATW St Neots Triathlon - Race3
Organised by: ATW
ATW Oundle Triathlon
17 Aug
ATW Oundle Triathlon
Organised by: ATW
ATW Oundle Children’s Triathlon
17 Aug
ATW Oundle Children’s Triathlon
Organised by: ATW
ATW Mallory Race Circuit Summer Runs - Half Marathon, 10k, 5k & Fun Run
23 Aug
ATW Mallory Race Circuit Summer Runs - Half Marathon, 10k, 5k & Fun Run
Organised by: ATW
Midweek Dorney Triathlon - August
27 Aug
Midweek Dorney Triathlon - August
Organised by: ATW
HSV Sprint Triathlon
31 Aug
HSV Sprint Triathlon
Organised by: ATW
ATW Bedford Running Festival
06 Sep
ATW Bedford Running Festival
Organised by: ATW
The 1066 Triathlon
07 Sep
The 1066 Triathlon
Organised by: First Stride
Duck N Dash Aquathlon
07 Sep
Duck N Dash Aquathlon
Organised by: Freedom Tri
Dinton SUPathlon
07 Sep
Dinton SUPathlon
Organised by: Barnes Fitness
ATW Grafham Triathlon
13 Sep
ATW Grafham Triathlon
Organised by: ATW
Woking Autumn Triathlon & Junior Aquathlon
14 Sep
Woking Autumn Triathlon & Junior Aquathlon
Organised by: ATW
Dunstable Downs Challenge Half Marathon 2025
14 Sep
Dunstable Downs Challenge Half Marathon 2025
Organised by: Dunstable Road Runners
Springfield Striders - Pleshey & Essex Half Marathon
14 Sep
Springfield Striders - Pleshey & Essex Half Marathon
Organised by: Springfield Striders
Sandridge 10k
14 Sep
Sandridge 10k
Organised by: Sandridge 10K
Siren Craft Brew 10km
21 Sep
Siren Craft Brew 10km
Organised by: Barnes Fitness
ATW Big East & Maldon Triathlon
21 Sep
ATW Big East & Maldon Triathlon
Organised by: ATW
Dorney Triathlon - September
27 Sep
Dorney Triathlon - September
Organised by: ATW
Fortitude Ultra - Denbies
27 Sep
Fortitude Ultra - Denbies
Organised by: ATW
ATW Welwyn Half Marathon & 10k
28 Sep
ATW Welwyn Half Marathon & 10k
Organised by: ATW
Moor Park 10 and More
28 Sep
Moor Park 10 and More
Organised by: East & North Herts Hospitals' Charity
Dorney Duathlon - October
04 Oct
Dorney Duathlon - October
Organised by: ATW
Burnham On Crouch 10K
05 Oct
Burnham On Crouch 10K
Organised by: Rotary Club Burnham
Love Luton RunFest - 5K, 10K
12 Oct
Love Luton RunFest - 5K, 10K
Organised by: ATW
ATW Holdenby House - Trail & Canicross
12 Oct
ATW Holdenby House - Trail & Canicross
Organised by: ATW
ATW Holdenby House Duathlon
12 Oct
ATW Holdenby House Duathlon
Organised by: ATW
ATW Grafham Duathlon - Incorporating the European Standard Duathlon Qualifier
26 Oct
ATW Grafham Duathlon - Incorporating the European Standard Duathlon Qualifier
Organised by: ATW
ATW Bedford 10k & Half Marathon
02 Nov
ATW Bedford 10k & Half Marathon
Organised by: ATW
ATW Remembrance Runs
08 Nov
ATW Remembrance Runs
Organised by: ATW
Dorney Duathlon - November
09 Nov
Dorney Duathlon - November
Organised by: ATW
ATW Triathlon Training Camp 2025 - Lanzarote
17 Nov
ATW Triathlon Training Camp 2025 - Lanzarote
Organised by: ATW
ATW Wendover Woods Trail Run & Canicross
23 Nov
ATW Wendover Woods Trail Run & Canicross
Organised by: ATW
ATW Hatfield 5
30 Nov
ATW Hatfield 5
Organised by: ATW
ATW Grafham Water - Trail & Canicross
07 Dec
ATW Grafham Water - Trail & Canicross
Organised by: ATW
ATW Stevenage Winter Half Marathon & 10k
14 Dec
ATW Stevenage Winter Half Marathon & 10k
Organised by: ATW
Telford 10K 2025
14 Dec
Telford 10K 2025
Organised by: Telford Athletics Club
Dinton Santa Dash - 2km & 5km
14 Dec
Dinton Santa Dash - 2km & 5km
Organised by: Barnes Fitness
ATW Nottingham Holme Run
21 Dec
ATW Nottingham Holme Run
Organised by: ATW
ATW St Albans New Years Eve 10K
31 Dec
ATW St Albans New Years Eve 10K
Organised by: ATW
New Year's Day 10K Race and 3K Fun Run
01 Jan
New Year's Day 10K Race and 3K Fun Run
Organised by: Serpentine
ATW Mallory Race Circuit Winter Runs - Half Marathon, 10k, 5k and Fun Run
18 Jan
ATW Mallory Race Circuit Winter Runs - Half Marathon, 10k, 5k and Fun Run
Organised by: ATW
ATW Bedford 5 & 10
25 Jan
ATW Bedford 5 & 10
Organised by: ATW
ATW Watford Half Marathon & 10K
01 Feb
ATW Watford Half Marathon & 10K
Organised by: ATW
ATW Love Welwyn Garden City 10K
15 Feb
ATW Love Welwyn Garden City 10K
Organised by: ATW
ATW Bedford Half Marathon & 10k
22 Feb
ATW Bedford Half Marathon & 10k
Organised by: ATW
ATW Great Yarmouth Seafront Half Marathon, 10k & 5k
01 Mar
ATW Great Yarmouth Seafront Half Marathon, 10k & 5k
Organised by: ATW
ATW Nottingham Holme Run
08 Mar
ATW Nottingham Holme Run
Organised by: ATW
Essex 20
15 Mar
Essex 20
Organised by: ATW
ATW Debden 10k and 5k
15 Mar
ATW Debden 10k and 5k
Organised by: ATW
ATW Run Fest at Lee Valley
22 Mar
ATW Run Fest at Lee Valley
Organised by: ATW
ATW St Albans Easter 10K
03 Apr
ATW St Albans Easter 10K
Organised by: ATW
ATW Stevenage Spring Half Marathon & 10k
06 Apr
ATW Stevenage Spring Half Marathon & 10k
Organised by: ATW
Dunstable Road Runners 5 mile Race
19 Apr
Dunstable Road Runners 5 mile Race
Organised by: Dunstable Road Runners
The Bewl Water Triathlon
24 May
The Bewl Water Triathlon
Organised by: First Stride
ATW Grafman Middle Distance Triathlon
07 Jun
ATW Grafman Middle Distance Triathlon
Organised by: ATW
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