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Leigh-on-Sea, England
Interested or taking part? Save your plans ↓When
Sunday, 25 October 2026
08:00 UK time · check your distance’s start
Where
Leigh Marina, Leigh-On-Sea, Essex, SS9 2ES
Leigh-on-Sea
Distance
5K · 10K · Half marathon (21.1K)
Terrain not confirmed
Entry
£25.68–£43.73
Published standard entry options. Check the booking page for the applicable category and any checkout charges.
Leigh-on-Sea Running Festival 2026 is organised by Mammoth Events in Leigh-on-Sea. Entry options: HALF MARATHON Standard Entry; 10K Standard Entry ⌵ReadMore⌵; 5K Standard Entry. The course surface has not been confirmed.
Organised by Mammoth Events (opens in a new tab).
Bookings are made on the organiser’s or authorised ticket provider’s website. Calendar downloads save the date only; they don’t update automatically.