Sports betting futures wagers can be an entertaining and profitable investment, but there are a number of pitfalls. These are some things to avoid:

Don’t bet at the first place you look: In other words, shop around for the best price. This is essential to all aspects of sports betting, but especially important with futures wagers. You’ll find more disparity between prices from book to book on futures than any other betting proposition. From a theoretical standpoint, a little work can yield much better value. From a practical standpoint, that means a higher payout should you win. The reason for this is that individual sportsbooks’ aren’t as worried about what the other guys are doing as they are with most other bets. Once the futures “market” is set books move the lines almost exclusively on their own financial position. The market simply doesn’t respond as quickly to futures wagers as it does to individual game lines so it is essential to do the extra work to get the best price on your proposition.

In a competitive field, don’t obsess with picking the winner: This may sound like a strange concept, but once you understand the theory behind it it makes perfect sense. In a large field–the NCAA basketball tournament is a perfect example–the top few favorites are invariably priced at odds that are less than the ‘true odds’ of them winning. On the other hand, there are always teams that fly ‘under the radar’ available at higher prices that present a betting overlay.

In mathematical terms, we’re simply not being offered odds on a favorite that offer a good value in comparison with the ‘true odds’ of the event occurring. Let’s say we bet Duke at +200 to win the NCAA tournament. If we could magically play the NCAA tournament over 100 times, would Duke come out on top more than 33 times? If not, they’re a poor value at the price. At a higher price, I might be interested but at +200 the value is simply not there.

Note that the more competitive the market, the more difficult it is to find good value on a favorite. In a smaller field, or in a field with one dominant competitor it can be easier. For example, say the UFC were to have a tournament involving heavyweight champion Brock Lesnar and three male figure skaters. Even if Lesnar was slightly injured, or not at the top of his game he’d essentially have a 100% chance of beating the smaller, effeminate men who are untrained to fight. If a book installed Lesnar as a -1000 favorite in this spot, it could still be considered a good value. It’s never easy to risk a lot to win a little, but from strictly a mathematical standpoint it makes sense.

Don’t go for the big killing: Sports wagering is not a good arena in which to make a ‘big killing’. It may happen from time to time, but it is extremely rare. A perennial doormat can come out of nowhere to win a championship at a big price, but the fact that it happens from time to time doesn’t make it a good value. If you’re a recreational player and want to throw a few dollars at a big long shot, no real harm. If you aspire to any degree of seriousness as a sports better, however, you need to maintain your discipline and commitment to value at all times. If you want to hit a big jackpot play the lottery or the slot machines, but don’t try to do it in a sports betting paradigm.

Wagering value is just as important at the bottom of the barrel as it is at the top. Just because you’re getting a huge potential payback on a big dog doesn’t make it a good value. Make sure that the payback you’re getting presents an overlay situation–even on a huge underdog.

Don’t waste your money on ridiculous prop bets: Occasionally sports books offer ridiculous bets to get press or to be funny. For example, a book once offered odds on Demi Moore, Ashton Kutcher and Bruce Willis all hopping into bed together and releasing a video tape of the proceedings. You’d no doubt get a huge payback were this to happen, but the ‘true odds’ of such an event transpiring far exceeded even a big potential payback.

Ross Everett is a freelance sports writer and highly respected authority on sports betting odds comparison. He writing has appeared on a variety of sports sites including sportsbooks and betting odds portal sites. He lives in Southern Nevada with three Jack Russell Terriers and a kangaroo. He is currently working on an autobiography of former interior secretary James Watt.