Betting on sports ‘futures’ is an enjoyable and potentially profitable way to wager, but there are several potential risks that can lead to losses. Here’s a rundown of things to avoid:

You gotta shop around: More specifically, you have to ‘shop points’ just as you would with a straight bet. This is crucial in all forms of sports betting but particularly key with futures wagers. There are often greater variances in the prices from book to book on future plays than any other type of wagering proposition. The reason for this is simple–most books are less concern with what the ‘other guys’ are doing as they are with keeping their own position ‘in balance’. All in all, the sports betting marketplace just doesn’t react as quickly to changing futures prices as it does to individual game lines.

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.

To put this in more theoretical terms, the “true odds” of Duke winning the NCAA Championship are almost certainly higher than the price we’re getting. Obviously, determining the “true odds”, or actual probability of a future event is an inexact science but think of it this way: if the NCAA tournament was played 100 times would Duke wind up winning 50 of those? Given the number of other good teams and the propensity for upsets along the way, its doubtful. For the sake of argument, lets say that Duke has a 33% chance to win the tournament. That means that I wouldn’t consider a bet on Duke to be a good value unless I was getting a price that a) accurately reflected the true probability of their winning and b) gave me some compensation for assuming the “risk of the unknown” inherent in taking the position so far in advance. At +500 I might be interested, but at +200 the value just isn’t there.

Note that the more competitive the market, the more difficult it is to find good value on the favorites. Since you can make a case for quite a few teams to win the NCAA tournament at this point this particular futures market is clearly a very competitive one. In a less competitive marketplace it might be possible to “pick the winner” and have it be a good value though you will pay a price for this. Here’s a (thankfully) hypothetical example: let’s say the UFC decided to hold a one night round robin tournament with 5 competitors. Competitor #1 would be heavyweight champion Brock Lesnar. The other four competitors would be professional figure skaters Elvis Stojko, Rudy Gallindo, Brian Boitano and Evgeni Plushinko. Even if he didn’t bring his “A game”, Lesnar would be essentially have a 100% certainty of beating the four untrained fighters, who also happen to be rather effeminate. If a sportsbook installed Lesnar as a -1000 favorite a bet on the 63 265 pound takedown would still be theoretically a good value. It’s always difficult to risk so much to win a little, but from a strictly theoretical standpoint its a good play.

Don’t get seduced by big underdogs: Sports betting is not a place to make the “big killing”. It may happen occasionally, but more often it doesn’t. While a sports book might offer a huge price on a cellar dwelling team to win the World Series, the big payback does not mean its a good value. On a practical level, there’s probably nothing wrong with throwing a few bucks on a wager like this with a huge payback if the impossible occurs. My only problem with this is that making too many bets like this just perpetuates bad sports betting habits. If you’re strictly a recreational player, no big deal. If you aspire to bet professionally, or at least want to pursue it with some degree of seriousness I’ve always maintained that you need to develop discipline that’s not situational. In other words, if you want to be a serious sports bettor you need to approach it with a consistent level of seriousness at all times. If you want to chase a huge, life altering jackpot go to Las Vegas and play the Megabucks slots or buy a Powerball ticket.

On a more theoretical level, a big price alone is no way to justify a wager. The concept of value works the same at the bottom of the barrel as it does at the top: make sure the price you’re getting on an underdog accurately reflects their “true odds” of winning.

Don’t bet one sided props: Sometimes sports books will offer silly bets just to get publicity or in some cases just to be funny. While there may be life on other planets, the ‘true odds’ of a Martian being named to President Obama’s cabinet wouldn’t justify a +5000 line that it would occur.

Ross Everett is a widely published writer and a noted authority on sports betting and NFL football betting lines. He is a frequent sports radio guest where he gives advice on how to successfully bet on NFL. He lives in Las Vegas with three dogs and a lynx.