Fitstuff

Fitstuff

No-nonsense trail running in the Surrey Hills and North Downs - sunrise starts, big climbs and honest miles. Choose 10K or 15K, and meet The Hurt: the South East’s toughest trail run.

Fitstuff trail runs

Award-winning trail runs in the South East.

The toughest trail run in the South East is back by popular demand. Likened to fell running, the route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.
  • Sat 11 Oct
  • £31-£35
Guildford, Surrey, UK

The Hurt

The toughest trail run in the South East is back by popular demand. Likened to fell running, the route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.

  • Trail run
  • Half marathon
  • Event village
  • Rural
  • Sustainability policy
  • Plastic-free event
  • Age 16 & over
  • Runs
Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.
  • Sat 10 Jan 2026
  • £27-£31
Guildford, Surrey, UK

Fitstuff G3 Run Series | Race 1

Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.

  • 10K run
  • Trail run
  • Trees not tees
  • Newcomers
  • Event village
  • Rural
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • Runs
Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.
  • Sat 31 Jan 2026
  • £27-£31
Guildford, Surrey, UK

Fitstuff G3 Run Series | Race 2

Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.

  • 10K run
  • Trail run
  • Trees not tees
  • Newcomers
  • Event village
  • Rural
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • Runs
Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.
  • Sat 28 Feb 2026
  • £27-£31
Guildford, Surrey, UK

Fitstuff G3 Run Series | Race 3

Take on a tough, award-winning trail run in the Surrey Hills and North Downs with a cracking sunrise, stop-in-your-tracks views and five-star reviews! No nonsense trail running.

  • 10K run
  • Trail run
  • Trees not tees
  • Newcomers
  • Event village
  • Rural
  • Sustainability policy
  • Plastic-free event
  • Age 15 & over
  • Runs
4 steps to wellbeing
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.