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CEP Winter BallBuster

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The Winter BallBuster was one of the first events ever launched by Human Race in December of 1990. The notoriously tough event concept is now in its 27th year and remains one of the toughest endurance challenges in the UK; a ‘must-do’ race for every competitive multi-sport athlete in the country, it will test your fitness and stamina to the max!

Set in the picturesque setting of the Box Hill National Trust site, the course takes you on five lap course of Box Hill and the undulating hills of the North Downs.

Everyone who finishes the event is awarded with a free event hoodie that you can wear with pride after the event, your badge of honour to show that you took on the infamous BallBuster… and won.

Review summary

1 Review
  • Course
  • Organisation
  • Atmosphere


Maxie S
"For anyone who is bored of doing laps around Dorney Lake, this event offers the..."
See all reviews

How to enter the CEP Winter BallBuster

  1. Duathlon

    Duathlon: Run 8mi, Bike 24mi, Run 8mi
  2. Relay Duathlon


CEP Winter BallBuster weather forecast

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IconLight breeze possible, up to 9mph

Meet the organiser

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Human Race is the UK’s leading mass participation events company, putting on over 30 events each year in triathlon, cycling, running, duathlon and open water swimming. Part of Amaury Sport Organisation (A.S.O.), owners of Le Tour de France and the leader in the French running and sportive market, Human Race’s prestigious portfolio includes the Windsor Triathlon, Dragon Ride L’Etape Wales, the Cancer Research UK Winter Run Series and VitalityMove.



CEP Winter BallBuster reviews

4.7 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the Duathlon in 2017

    For anyone who is bored of doing laps around Dorney Lake, this event offers the rare combination of Duathlon with an interesting course. It has a reputation as a serious challenge, but it is definitely one thats worth taking on. The race includes over 1000m of incline, a running component almost as long as the bike, as well as wet and windy autumnal conditions, but it is very much worth doing for the motivation to keep you training into the autumn. It also promises the famous Ballbuster hoodie (which actually is worth 3 - 4 gruelling hours in the rain). Whilst the course is difficult, it is very well laid out, quiet, and the scenery is beautiful (if often masked by fog). The marshals are organised and friendly, and everything has run smoothly both times I have raced here (2017, 2016). You will need to arrive early as the car park fills up quickly, and it is worth trying the course out beforehand as some of the left turns are very tight.All in all, I think this is one of the best duathlons the UK has to offer, and should be on any keen multi-sport athletes event wishlist.
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