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What's in a name when picking a Grand National winner?

With the Grand National it's that time of the year when many of us might have a little flutter on the horses.

The event attracts hundreds of millions of pounds in bets, with punters employing a variety of methods to back potential winners, everything from a stickpin to the colours of the jockey's silks.

Now a mathematician from Cambridge thinks he's come up with a more scientific formula for success,

Click below to watch Luke Farrington's report on whether it all adds up: