Frankie Dettori and Authorized are many people's idea of a successful combination in Saturday's Epsom Derby, but a visit to Hatters Bet this weekend could well make the difference between winning and losing.

For starters, new Hatters Bet customers who sign up between midnight Friday and midnight Sunday can take advantage of up to £200 in free bets - that's double our normal offer! We'll match your first bet with a free bet (up to £50), with another £150 in free bets available once you've placed further qualifying bets with us.

Plus, take a price on your Derby fancy on the day of the race - either an early Hatters Bet price or a board price - and we'll pay you out at the starting price if it's bigger. For example, take 10/11 on Authorized in the morning and if he wins at Evens or bigger, we'll pay you out at the bigger price! This amazing offer applies to all races between now and the end of August!

When it comes to finding the winner, it's hard to look beyond Authorized after his commanding performance at York last time out. He's not much of a price though (currently 4/5), so you might want to consider a bet on Hatters Bet's "Without Authorized" market, where Archipenko is our market leader at 9/2.If you're looking for bigger odds, then Petara Bay might be the surprise package at 40/1 (50/1 Outright!). You'll pick up if he wins or comes second to the favourite - each way betting also available at ¼ odds, 1.2.3.

At the same time as placing your Derby bets, why not check out Hatters Bet's odds on next season's English football leagues. An accumulator on our four favourites - Chelsea (11/8), Charlton (6/1), Leeds (11/2) and Peterborough (7/2) - pays out £4862.81 to a tenner!