What’s the most dangerous sport? © Getty Images

What’s the most dangerous sport?

Although this depends on how we measure risk, there’s one sport that climbs to the heights of dangerous activities.

Asked by: Steve Grantham, Preston 


This is surprisingly hard to answer, as it depends both on how the risk is measured – per participant, say, or per event – and the availability of reliable data.  

But according to a 2014 analysis by Prof Sir David Spiegelhalter at Cambridge University, the UK’s leading authority on risk, mountaineering is probably the most dangerous sport, carrying a risk of death of around 1 per cent per climb. By comparison, running a marathon is around 1,000 times safer.

Read more:


Subscribe to BBC Science Focus Magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun facts.