Leigh-on-Sea Running Festival
Leigh-on-Sea Running Festival features 5K, 10K and Half Marathon races from Leigh Marina in Essex, with coastal routes exploring the town and its Thames Estuary surroundings.
| Date | Sunday 25th October, 2026 |
|---|---|
| Distance | 10K |
| Terrain | Road |
| Timing | Chip timed |
| Location | Leigh Marina |
| Town/City | Leigh-on-Sea |
| Area | Essex |
| Start postcode | SS9 2ES |
| Start time | 8:00am |
Results Verified
Leigh-on-Sea Running Festival is organised by Mammoth Events, bringing together 5K, 10K and Half Marathon races from Leigh Marina on the Essex coast. Also known as LOS Run Fest, the festival caters for runners tackling shorter distances alongside those taking on the longer Half Marathon challenge.
The courses explore Leigh-on-Sea and its coastal surroundings, with the Half Marathon extending further along the coastline. Although the event shares a short section with the established Leigh-on-Sea 10K Classic, the majority of the route is different, giving the festival its own distinct course identity. The 5K provides the shortest option, while the 10K combines coastal scenery with a route designed to accommodate runners seeking faster times.
All three distances feature chip timing, with a bespoke finisher's medal and professional event photography included. Music and an event village contribute to the festival atmosphere, bringing runners and supporters together at Leigh Marina.
Location
Results
| Results | Status |
|---|---|
| 2026 results | Verified |
- Verified
- Chip timing company
- Organiser
- Organiser’s website
- Community
- Social/Other
- Pending
- Results pending
