There are 10 upcoming half marathon races in West Sussex listed. Next up: SOUTH DOWNS TRAIL RUN (Saturday, 7 November 2026), Running GP at Goodwood Motor Circuit (Sunday, 6 December 2026), Running GP at Goodwood Motor Circuit (Sunday, 21 February 2027).
Upcoming races only, soonest first. Confirm dates and entry details with the organiser.
Chichester · Goodwood Racecourse, Selhurstpark Rd, Chichester PO18 0PS, UK
SOUTH DOWNS TRAIL RUN is organised by UK Running Events in Chichester. Entry options: 21K: Runner Entry; 21K: Canicross Entry; 16K: Runner Entry; 16K: Canicross Entry; 12K: Runner Entry; 12K: Canicross Entry.
£32.50–£42.50
See entry options & fees
Chichester · Goodwood, Motor Circuit, Chichester PO18 0PH
Choose a distance and run laps of Goodwood's traffic-free motor circuit.
£29.40–£44.10
See entry options & fees
Chichester · Goodwood, Motor Circuit, Chichester PO18 0PH
Choose a distance and run laps of Goodwood's traffic-free motor circuit.
£29.40–£44.10
See entry options & fees
Lancing · Lancing Manor Leisure Centre, Manor Road, Lancing, West Sussex, BN15 0PH
Three Forts Challenge is organised by Three Forts Challenge in Lancing. Entry options: Marathon 2027; Half Marathon 2027; 5 Mile Trail Run 2027. The course surface has not been confirmed.
£20–£49
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Worthing · Beach Parade, Worthing, BN11 3, United Kingdom
Worthing Runfest Half Marathon & 10K 2027 is organised by RUN-FEST.com in Worthing. Entry options: Worthing 10k Standard Entry; Worthing Half Marathon Standard Entry. The course surface has not been confirmed.
£35.50–£40.50
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Chichester · Goodwood Motor Circuit, Chichester, PO18 0, United Kingdom
Running GP at Goodwood Motor Circuit Races & Duathlons is organised by RunThrough Events in Chichester. Entry options: 5k; 10k; Half Marathon; Sprint Duathlon; Standard Duathlon.
£30–£53
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Lancing · Lancing College
The River Run takes place in Lancing on 15 August 2027. Organised by UK TRAINING CLUB. Published venue: Lancing College. Check the organiser’s booking page for the full route, start arrangements, age requirements and current entry conditions.
£29–£36
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Chichester · Goodwood, Motor Circuit, Chichester PO18 0PH
Choose a distance and run laps of Goodwood's traffic-free motor circuit.
£29.40–£44.10
See entry options & fees
Crawley · Southgate Park Southgate Ave, Crawley RH10 1UZ
A single-loop race from central Crawley through the surrounding countryside towards Charlwood.
£28.35–£43.05
See entry options & fees
Chichester · Goodwood, Motor Circuit, Chichester PO18 0PH
Choose a distance and run laps of Goodwood's traffic-free motor circuit.
£29.40–£44.10
See entry options & fees
Work out your target half marathon time and pace.