Horses around this price are sometimes written off as no-hopers. But shocks happen - Last Suspect won the 1985 Grand National at 50-1, while the 1990 Cheltenham Gold Cup winner Norton's Coin was a 100-1 chance.
Your stake: £1 win
Horse wins: £50 profit
2/3 place: No pay-out
Your stake: £1 e/w (£2 bet)
Horse wins: £62.50 profit
2/3 place: £11.50 profit
(Based on a handicap with more than 16 runners, such as the Grand National. Each-way payouts can vary depending on the size of field and type of race)