Can a formula predict the Grand National winner?

Mathematician - and Gogglebox star - William Hartston says he has developed a formula which can predict the winner of the Grand National

03 April 2014

2 minutes

This clip is from

5 Live In Short

Grand National 2014—5 Live In Short
Previews, news and action from Aintree on the 2014 Grand National.
News—5 Live In Short
The best current affairs interviews, insight and analysis from BBC Radio 5 live.

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