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.
Don't fixate on picking the winner from a competitive field: This may sound like strange advice, but from a theoretical standpoint it makes perfect sense. As with every other element of sport wagering its crucial to always focus not on winners and losers, but on the value you're getting on individual bets. For example, in most years there are several teams with a realistic shot of winning at the start of the NCAA basketball tournament. The problem is that these top teams invariably offer low paybacks that are less than their 'true odds' of winning. Every team is subject to the same variables like injuries, slumps, bad matchups but backing teams that are 'under the radar' at higher prices offer more compensation for these 'risks'.
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.
In a less competitive field, there can be instances where even a big favorite is a good value. For example, lets say a book was to take action on a bikini contest between a Victoria's Secret supermodel and three members of the Pittsburgh Penguins. The model would essentially be a 100% probability to win the contest, meaning that even a high chalk price would be a good value. Risking a lot of money to win a little is a tough thing to justify, however, even if the math makes sense.
Don't try to make a huge profit with little risk: Sports betting provides few opportunities to make a 'big killing'. It may happen occasionally, but even the big payouts when it occurs doesn't make chasing big longshots a good value. If you're serious about sports betting it is crucial to maintain your focus on the underlying numbers and look for value at all times. If you want to take a longshot at a huge jackpot, play the lottery but don't try to do it at a sportsbook.
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.
