You don't need to get the correct finishing order; simply tell us the five runners you think will finish in the top five. And if you are right, you will win a share of the £50,000 on offer, or possibly the whole jackpot!
It's free to play but entrants must ensure that they have selected their picks by 5.10pm on Saturday - five minutes before the race is scheduled to start. If any Pick 5 player selects a non-runner, the entry is deemed a loser.
Racing TV's star presenter Ruby Walsh know a thing or two about winning the race, having guided Papillon to victory in 2000 and then Hedgehunter five years later.
So who does Ruby think will occupy the first five places? Here's his team.
Ruby's Grand National Pick 5 selections
ANY SECOND NOW (number 1)
He has proven track form. You have to stay to win the Grand National. We know he stays. He's trained by my father, Ted, and he's in good order. I believe he has too high a rating to win the race but he'll run a good one again.
VELVET ELVIS (number 24)
He is a second-season novice who turned in a good solid run in the Irish National last season, plus ran well again in the Webster Cup. He's a bigger price than he should be, as I think there's a fair chance he will stay.
LE MILOS (number 15)
Only went up 6lb for winning the Coral Gold Cup at Newbury and I think he's still ahead of the handicapper. He travelled well there and I liked his prep-run at Kelso, even though he was beaten. That looked a stepping-stone. Dan Skelton thinks he will stay and so do I.
CORACH RAMBLER (number 26)
Corach Rambler represents a stable who had a horse, One For Arthur, who came from way back to win the National. I think Corach Rambler is a similar type. He's guaranteed to stay. Theoretically, he's 10lb well-in, having gone up again for his latest Cheltenham victory. You have to put him in.
FURY ROAD (number 4)
Fury Road finished in front of Any Second Now in the Irish Gold Cup off level weights and now he's getting 6lb off him. That makes him interesting.
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