Relay triathlons in Grantham
Find relay triathlons near me in Grantham for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.
Filter by month
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.

- Sun 26 Apr 2026
- £55
- Sun 26 Apr 2026
- £55
Tridents Grantham Triathlon
A classic sprint triathlon with a fresh new energy to bring the triathlon scene back to Lincolnshire! A pool swim with a thrilling and scenic course plus a commemorative medal.
- Newcomers
- Enter online
- Event village
- Rural
- Sustainability policy
- Age 17 & over
- 400 m pool swimming
- 24 km road cycling + 230 ft ascent
- 5 km road running + 62 ft ascent

- Sat 18 Jul 2026
- £92-£115
- Sat 18 Jul 2026
- £92-£115
Belvoir Castle | Sprint Plus Triathlon
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in a Sprint Plus Triathlon! Celebrate in the festival village afterwards.
- Chip timing
- Enter online
- Age 17 & over
- 800 m lake swimming
- 40 km road cycling
- 8 km road running

- Sat 18 Jul 2026
- £76-£95
- Sat 18 Jul 2026
- £76-£95
Belvoir Castle | Super Sprint Triathlon
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in a Super Sprint Triathlon! Celebrate in the festival village afterwards.
- Chip timing
- Enter online
- Age 15 & over
- 400 m lake swimming
- 20 km road cycling + 632 ft ascent
- 4 km road running + 248 ft ascent

- Sun 19 Jul 2026
- £100-£125
- Sun 19 Jul 2026
- £100-£125
Belvoir Castle | Olympic Triathlon
A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in an Olympic Triathlon! Celebrate in the festival village afterwards.
- Chip timing
- Enter online
- Age 17 & over
- 1.5 km lake swimming
- 45 km road cycling + 957 ft ascent
- 10.5 km road running + 615 ft ascent