Grand National, Aintree, Tomorrow, 4.15, Free £20 bet

The Spoiler’s pick for tomorrow’s Grand National is Darkness. We didn’t pick him because he’s named after our least favourite spandex-wearing cheese rockers - check out our statistical approach here.

If you enjoy a good flutter, then you should back him with Boylesports. Place £10 on him (or any other nag) and they will give you a free £20 bet to play with. Our advice would be to stick that £20 on a football outcome with short odds (like a Manchetser Utd or Arsenal win this weekend) as a means of insurance. Sound like a plan? Then place your bets here.

Already have a Boylesports account? Then back Darkness with Bet365, who are offering a £200 Free Bet Basket, or Paddy Power, who offer a free matched bet of up to £25. Both firms are also paying each-way on five places.