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2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

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Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

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2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
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2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
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2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
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7

Runs in Greater London in December 2025

Find runs near me in Greater London in December 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Event listings

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

Sun 7 Dec

Woodford Green, UK

SITC Dawn To Dusk Ultra | Half Marathon

13.1 miles road running

Sun 7 Dec

Woodford Green, UK

SITC Dawn To Dusk Ultra | Marathon

26.2 miles road running

Sun 7 Dec

Woodford Green, UK

SITC Dawn To Dusk Ultra | Ultra Marathon

50 km road running

Sun 7 Dec

Woodford Green, UK

SITC Dawn To Dusk Ultra | 10K

10 km road running

Sun 14 Dec

Richmond, UK

Richmond Park December 5K, 10K and Half Marathon | Half Marathon

13.1 miles multi terrain running

Sun 14 Dec

Richmond, UK

Richmond Park December 5K, 10K and Half Marathon | 5K

5 km multi terrain running

Sun 14 Dec

Richmond, UK

Richmond Park December 5K, 10K and Half Marathon | 10K

10 km multi terrain running

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