Will another first-timer win the Grand National? Here’s why it could be worth backing a debutant

The Grand National is one of those horse races where experience doesn't seem to matter.

More than two-thirds of winners over the last half-century have been running the race for the first time, with Red Rum the last back-to-back winner all the way back in 1974. Given the track record of favourites and familiar names, it's one of the races where it can pay to back a first-timer, and sports betting social network bettingexpert.com has given some suggestions for where to put your money. The infographic below shows the most common age and odds of recent winners, giving you the information you need to make an informed bet on this year's race.   JOE's rather unscientific method of picking a winner has landed us with three options, including 7/1 favourite (and defending champion) Many Clouds. But given the struggles of previous winners to go back-to-back, perhaps 20/1 shot and Grand National first-timer Gallant Oscar is worth an each-way punt?