555 St Marys Half Marathon

Past edition

8 October 2026

Published distance

Half Marathon

Entry status: closed

Lapped half marathon

Start: St Mary's

Official standalone daily halfs and island/day itinerary confirmed. Exact daily distance unspecified; inconsistent series mileage not copied.

Standalone daily half-marathon option within five-day island series.

Official standalone daily halfs and island/day itinerary confirmed. Exact daily distance unspecified; inconsistent series mileage not copied.

Sources checked 14 September 2026. Entry availability can change.

Upcoming edition

12 October 2027

Published distance

Half Marathon

Entry status: unknown

Start: St Mary's

Official organiser labels this edition with the stated eligible distance; no old edition measurements or route facts are inherited.

Field-scoped verification 2026-10-20: Organiser confirms 8–12 October 2027 with named daily islands, separate marathon and half-marathon options, marked loops and £70 per day / £350 full week. Linked registration returned 403, so booking availability remains UNKNOWN. The five-half total is published as 106 km but also 76 miles, an inconsistent conversion; retain the explicit kilometre total with this conflict disclosed. No exact numeric single-day distance is inferred. The stated at-least-5.5-hour allowance is not converted into an exact cutoff. Only the stated facts are confirmed for this edition.

Sources checked 20 October 2026. Entry availability can change.