Profitable wagering isn't just about choosing winners; it is also about deciding if it's worth backing them at the odds you are given. The thing to ask yourself all the time is if you are getting good enough odds to justify parting with your hard earned or won cash?
To find out, you have to use the same tools as we do - and you have to use your special advantage. That is that you are concentrating on just one race at one meeting on one day or on whatever single event you have picked on. We, on the other hand, have to cover numerous matches, races and events each day, and we can't get them all right.
There are several questions I ask about every horse in a race - and you must, too - are as follows:
As with other types of sports, as well as form, I consider injuries and fitness, home advantage and weather. You should also consider facts such as, 28% of all football matches end in draws and UK participants are usually underpriced because too many punters bet on sentiment.
If you can get all these right, you'll know the true odds. The best tactic is to look for races or events where I and my colleagues and competitors have got them wrong. If we have, you've found a value bet, and making value bets is the only way to beat the bookies.
When I began in this industry, the only sports covered, apart from horses and dogs, were one-offs - tennis for Wimbledon, golf for the Open and the major football matches like the FA Cup final. Now there has been a mass proliferation, and everyone is betting on anything that moves - for example, three tennis tournaments a week. It's been sustained by the fact that there are now almost 100 online bookmakers and betting exchanges.
We wouldn't ban successful arbsters, but we know who they are and we watch their accounts very carefully, to make sure we don't catch a bad cold. You can't blame people for making free money. It's perfectly legal.
I have to admit that, if you are willing to put in the time and effort, devote some time in information technology, have a high degree of mathematical expertise, and are disciplined to regard arbitrage as a proper job, you can forge a good living out of exploiting the differences in the prices offered by competing bookmakers. Bear in mind that you sometimes have to spend hundreds of pounds to win less than a fiver.
The key is in looking out for the odds that are out of line with true probability. There are a lot of websites to help you, but you are better to do your own maths, because we will be keeping an eye on the percentages the comparison sites are publishing, too.
A worthy tip is always put a wager on the 'wrong' price first, because if we alter the odds in response to a rush of bets, at least you are on the right side of the equation.
Art Aronson is a tenured bottom-line professional sports handicapper. He is the best ROI handicapper in the business. He is not your typical handicapper.
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