Trail 5K runs in UK

Find trail 5k runs in UK in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Boosted

A challenging 5K ‘fun’ run as part of the Lake District Running Festival an iconic location with a grandstand finish, wooden medal, free event photos and, more importantly, cake...

Sat 30 May
£15-£20

Ambleside, Cumbria

Lake District Running Festival | 5km Grasmere Gallop

A challenging 5K ‘fun’ run as part of the Lake District Running Festival an iconic location with a grandstand finish, wooden medal, free event photos and, more importantly, cake...

5.7 km trail running + 61 m ascent

Enter online
Undulating
Age 6 & over

Come and join the day of running and aim to complete a 5K at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!

Sat 26 Dec
£16-£18

Egham, Surrey

Boxing Day Challenge | 5K

Come and join the day of running and aim to complete a 5K at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!

5 km trail running

Enter online
Flat
PB
Traffic free
Age 12 & over

The route is exactly 5K, multi-terrain in nature, with a nice mix of minor road and trail to make for an interesting run in lovely surroundings, with fantastic views. Chip timing, prizes and medal!

Sun 10 Jan 2027
£19

Ruthin, Clwyd

Vale of Clwyd 5K

The route is exactly 5K, multi-terrain in nature, with a nice mix of minor road and trail to make for an interesting run in lovely surroundings, with fantastic views. Chip timing, prizes and medal!

5 km multi terrain running

Families
Beginner-friendly
Chip timing
Enter online
Flat
Undulating
Event village
Park
Age 11 & over

Popular night-time trail races through Haldon Forest with beer, mince pies and medals for finishers! A range of distances to cater for all ages. Fun for all the family with fancy dress awards too.

Sat 16 Jan 2027
£20

Exeter, Devon

Haldon Night | 5K

Popular night-time trail races through Haldon Forest with beer, mince pies and medals for finishers! A range of distances to cater for all ages. Fun for all the family with fancy dress awards too.

5 km trail running + 447 ft ascent

Chip timing
Enter online
Traffic free
Age 8 & over

Storm the Fort 5K is the Gold award-winning event in the ‘Dark Skies Series’ of night trail running events, a three-event series taking part across Somerset.

Sat 16 Jan 2027
£21

Burnham-on-Sea, Somerset

Dark Skies Series | Storm the Fort | 5K Night Run

Storm the Fort 5K is the Gold award-winning event in the ‘Dark Skies Series’ of night trail running events, a three-event series taking part across Somerset.

5 km trail running + 528 ft ascent

Enter online
Hilly
Traffic free
Age 8 & over

The courses are challenging but the event environment is relaxed and friendly. Runners of all abilities can get involved and enjoy a run out on those fabulous trails.

Sat 6 Mar 2027
£19.50-£23

Mold, Clwyd

Loggerheads Trail 5K & 10K

The courses are challenging but the event environment is relaxed and friendly. Runners of all abilities can get involved and enjoy a run out on those fabulous trails.