Belvoir Castle Triathlon & Multisport Festival | 2026
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Sat, 18th Jul 26
Grantham
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Race Information
Multi-discipline festival weekend at Belvoir Castle with 23 event options.
1000 Participants
Intermediate
Entries open in 335 days
Location
Belvoir Castle Estate
(52.89468069999999, -0.7824118999999999)
(52.89468069999999, -0.7824118999999999)
About Belvoir Castle Triathlon & Multisport Festival | 2026
18th Jul 26
-
Grantham
A weekend multisport festival at Belvoir Castle Estate, featuring triathlon, duathlon, aquabike, aquathlon, swim, run & relay events across 23 distances—from starter to full Iron—plus festival village, on-site camping, and live entertainment.
Triathlon - 5.7 km
0.2km Swim | 4.2km Bike | 1.3km Run
Sat, 18th Jul 26
• 14:30
£35
Coming Soon!
£35
Coming Soon!
Swimrun - 5.75 km
0.75km Swim | 5km Run
Sat, 18th Jul 26
• 10:15
£50
Coming Soon!
£50
Coming Soon!
Triathlon - 5.9 km
0.3km Swim | 4km Bike | 1.6km Run
Sat, 18th Jul 26
• 14:00
£40
Coming Soon!
£40
Coming Soon!
Triathlon - 14.7 km
0.2km Swim | 12km Bike | 2.5km Run
Sat, 18th Jul 26
• 10:45
£80
Coming Soon!
£80
Coming Soon!
Aquabike - 20.75 km
0.75km Swim | 20km Bike
Sat, 18th Jul 26
• 10:15
£65
Coming Soon!
£65
Coming Soon!
Triathlon - 24.4 km
0.4km Swim | 20km Bike | 4km Run
Sat, 18th Jul 26
• 10:30
£95
Coming Soon!
£95
Coming Soon!
Triathlon - 25.75 km
0.75km Swim | 20km Bike | 5km Run
Sat, 18th Jul 26
• 09:30
£100
Coming Soon!
£100
Coming Soon!
Duathlon - 27.5 km
5km Run | 20km Bike | 2.5km Run
Sat, 18th Jul 26
• 10:00
£75
Coming Soon!
£75
Coming Soon!
Triathlon - 48.8 km
0.8km Swim | 40km Bike | 8 km Run
Sat, 18th Jul 26
• 09:00
£115
Coming Soon!
£115
Coming Soon!
Triathlon - 10.8 km
0.4 km Swim | 8 km Bike | 2.4 km Run
Sun, 19th Jul 26
• 14:30
£45
Coming Soon!
£45
Coming Soon!
Triathlon - 10.9 km
0.5km Swim | 8km Bike | 2.4 km Run
Sun, 19th Jul 26
• 14:00
£50
Coming Soon!
£50
Coming Soon!
Swimrun - 11.5 km
1.5km Swim | 10km Run
Sun, 19th Jul 26
• 10:30
£65
Coming Soon!
£65
Coming Soon!
Aquabike - 46.5 km
1.5km Swim | 45km Bike
Sun, 19th Jul 26
• 10:45
£70
Coming Soon!
£70
Coming Soon!
Triathlon - 57 km
1.5km Swim | 45km Bike | 10.5km Run
Sun, 19th Jul 26
• 09:45
£125
Coming Soon!
£125
Coming Soon!
Duathlon - 60.5 km
10.5km Run | 45km Bike | 5km Run
Sun, 19th Jul 26
• 09:30
£80
Coming Soon!
£80
Coming Soon!
Duathlon - 111 km
10.5km Run | 90km Bike | 10.5km Run
Sun, 19th Jul 26
• 09:00
£90
Coming Soon!
£90
Coming Soon!
Triathlon - 112.9 km
1.9km Swim | 90km Bike | 21km Run
Sun, 19th Jul 26
• 08:00
£245
Coming Soon!
£245
Coming Soon!
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Amenities
Toilets
Food and Drink
Parking
Medical
Bag Storage
Hydration Stations
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£35 - £245
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