There are 4 upcoming half marathon races in Dorset listed. Next up: Dorset Coastal Trail Run (Saturday, 5 December 2026), Endurancelife Dorset (Saturday, 5 December 2026), Step into Christmas (Sunday, 13 December 2026).
Upcoming races only, soonest first. Confirm dates and entry details with the organiser.
Swanage · Swanage
Coastal trail races based around Swanage, with 10 km, half-marathon, marathon and ultra categories. Route lengths can differ from standard road-race distances; check the organiser’s course and kit requirements.
£35–£71
See entry options & fees
Swanage · Swanage, England, United Kingdom
Endurancelife Dorset is organised by Endurancelife in Swanage. Entry options: 10K; Half Marathon; Marathon; Ultra.
£35–£71
See entry options & fees
Bournemouth · Southbourne Beach, Bournemouth, Dorset
Lapped running challenge on the flat Southbourne promenade. Start flexibly between 08:00 and 09:30 and finish by 15:00. Choose a distance from 5 km to ultra, with refreshments each lap; bring your own cup.
£39.50
See entry options & fees
Swanage · Swanage Beachfront, Shore Rd, Swanage BH19 1LB, UK
Jurassic Express Trail Run is organised by UK Running Events in Swanage. Entry options: 21K: Runner Entry; 16.5K: Runner Entry; 10.5K: Runner Entry; 21k: Runner Entry + Train Ticket; 16.5k: Runner Entry + Train Ticket; 10.5k: Runner Entry + Train Ticket.
£34.50–£52.50
See entry options & fees
Work out your target half marathon time and pace.