If you were told of an investment which would give you a 200% return in a matter of days, you'd invest as much as you could, wouldn't you?

And yet, bizarrely, there are people saying that Visindar, the Derby favourite, is too short at 2/1. They are crazy. Admittedly I speak from the rather smug position of holding a large ante post investment at 15/2. But take it from me, Visindar is as near a certainty as exists in racing. He's at least as much of a certainty as Shergar was all those years ago.

I helped a fair number of you enrich yourselves on War of Attrition in the Gold Cup at 12/1. But he was merely a strong fancy. Visindar, on the other hand, is one of those bets which comes along very rarely in one's lifetime. The last time such a certainty ran it was Dubai Millennium in the Prince of Wales' Stakes at Royal Ascot in 2000. I had by far my biggest ever bet on him, and made a small fortune.

Visindar is the horse who is going to do that again for me. 2/1 against him is not too short - it is giving money away.

And if you want a lively outsider for a place, have a punt on Mick Channon's Championship Point each way at 20/1.

UPDATE: This really is free money: BetFred has a promotional offer that they will double whatever winnings your make from your first bet with them (maximum £100 payout). So I've just stuck £50 on Visindar at 15/8, and will get £250 back when he wins, rather than the normal £150. Sometimes money really does grow on trees.