**This is pretty long and covers your question and betting sports as a full-time endeavor. I bet year-round but don’t know if I would term myself a professional sports bettor and don’t have the bankroll to ever be a “shark” but I know the industry and the sports inside and out and put in considerable amounts towards each season. If you want to see what work goes into this and not just a numbers explanation (means nothing to someone who isn’t betting full-time and isn’t useful for someone who is because they already know) read it and let me know if you have any questions.**

A good record for a sports bettor is any record equal to or larger than 52.4%, because that number or anything higher means you’re not losing money. A 53% winning record, while not impressive on paper, means you’re actually beating the sportsbook and putting money back in your pocket. Ask your friends that play the slots or play online poker how often they end up putting money back in their pocket.
But you give the Team A far greater winning chances – based on your information, analyses, statistics, observation, skill and other factors that form your opinion – say 60% (or 0.6). The fair odds for the victory of the Team A based on your assumption would be 100% / 60% (or equally 1 / 0.60) = 1.67. The sports betting company thus offers the odds, which are higher (1.8) than the minimum odds (1.67), which would be yet acceptable for you (i.e. the fair odds). Therefore it is advantageous for you to make the bet, since your expected return is positive and your edge is exactly 1.8 / 1.67 – 1 = 0.08 = 8%.
Sports betting appeals to the smart bettor because it does not have a fixed house edge for the casinos. Sports betting requires more skill than luck and is similar to live poker. You do not win every time but the skilled handicapper has a huge advantage over the recreational bettor. How sports betting can be a profitable investment involves an understanding of numbers, odds and sports.
Some final rules I live by: Understand betting completely and understand every aspect of this (not just knowing lines and percentages but how are these set and how to use that knowledge), never bet on your team, never bet based on someone else’s predictions or picks, never bet without being certain and at peace with your selection, know you don’t have to bet today or this week only bet if the numbers make sense, follow your rules and never make exceptions, believe that you’re putting money on a likely outcome and not gambling on outcomes, and finally know your limit (monetary, knowledge and skill) and quit if you can’t meet the standards of an average bettor. Losing money doesn’t mean you can’t do this. Even losing for a season. But you must be realistic with yourself and why you are losing and either get better in these areas or just quit because hobby betting is fine with a few bucks but hobby betting to win money is a recipe for losing your account.
The 10% vig is hard enough to overcome in itself, and placing wagers without solid reasoning and a decent edge is going to chip away at your bankroll and cut into bottom-line profits. There’s a reason why there are so many betting markets available at online sportsbooks, many of which are highly juiced and unbeatable. They know gamblers love the action of betting sports and they’re hoping to entice them to wager more. Don’t fall for this trap.
This depends upon the popularity of the event, but in general, bookmaker odds will be more a reflection of what they expect the general public to play, rather than on the actual probabilities of either outcome. Of course, it's not quite that simple, but in general, bookmakers will set their odds so as to attract betting on either side of the odds, so as to balance their liability and take their commission.
Of course, as in any game of chance, there is variability in the actual results and just because you have won 55% in the past and expect to win 55% in the future doesn’t mean that you’re going to win 55% this upcoming season. There is variance in sports betting, as there is in most investments, and I calculate the standard deviation to figure out how much of my bankroll I can safely wager on each game during the season to accommodate potential negative swings while having very little chance of exhausting my bankroll. I have extensively quantified the variance that exists in sports betting, and use mathematical formulas to dictate the exact optimal amount to invest so as to maximize the ratio of profits to variance.
The America’s Bookie Sportsbook, as a value added service, provides this intuitive section on how to bet your favorite sports such as baseball, football, basketball, hockey, soccer, horse racing, NASCAR, tennis, and golf. Please refer to our how to bet guides for questions regarding betting tips and advice. Please check back often as we continuously updated our how to bet your favorite sports.
The most recent development in Kentucky is particularly interesting. State Attorney General Andy Beshear, publicly threw his support behind the idea of legislators passing an expansive gaming bill in 2019 that would encompass not just sports betting, but daily fantasy sports, casinos and online poker as well. The impetus for Beshear’s stance is relatively straightforward — much-needed revenue for the state coffers, including an estimated $30 million annually from sports betting that would help fully fund the state’s pension systems.
Even though most sports bettors are losers in their own right (as a whole, bettors actually win an average of only 48% of their bets – less than they would expect to win if they just flipped a coin for every game), their losses are compounded by the fact that the house takes a cut of winnings, also known as the ‘juice’ or ‘vig.’ Most sports books charge a 10% commission on wins, which means that a bettor must actually win 52.4% of his games just to break even. (Wagering $100 per game, a bettor loses $100 with a loss and wins $90.91 with a win, so he must go 11-10 (11/21 = 52.38%) to break even).

As the name suggests long-term bets spread over a longer period of time. If you like, you could call them the opposite of live bets. Long-term bets are offered for all possible sports, whether it's football, tennis, basketball, ice hockey, Formula 1 or winter sports. The bet is used for longer, season spreading formats - therefore the name. Popular examples would be EURO or World Cup qualifications or final rounds, leagues, cup competitions or other tournaments. The classic long-term bet aims at betting on the winner of the chosen format/competition. Therefore one often speaks of championship bets in football or other sports. For example you can bet on who will win the German Bundesliga, the Premier League, but also tournaments like the Chmapions League or the DFB Cup. A long-term bet in tennis for example would be betting on the winner of a certain Grand Slam tournament like Wimbledon. This principle works analogically for all other sports: Who will be Formula 1 world champion? Who will win the biathlon total world cup? Long-term bets are usually placed before the season starts or before the championship or the respective tournament kicks off, because then you get the best odds. Of course you can also place them in the course of a certain competition. You can for example bet on the final winner in the semi final. Then four teams or players are still left to choose. Remember: Bookmakers react to the intermediate result and adapt the odds accordingly. The profit calculation works as usual: The betting stakes are multiplied by the betting odds. An example for a long-term bet, where you bet on the winner of a competition would be a tip on the winner of the total world cup in Alpine skiing:


The discussion has been going on all season, but with the release of the first College Football Playoff Rankings, we can see who has the inside track on the postseason and who’s leading the way in the bowl projections for 2017. Alabama, Clemson, Michigan, and Texas A&M fans can breathe easy for now according to college football predictions, but we ... Read More »
Moskowitz has studied betting on a number of sports, including the National Football League, Major League Baseball, the National Hockey League, and the National Basketball Association. While betting on all of them exhibited behaviorally driven mispricing that created value and momentum effects, the size of those mispricing effects was only about one-fifth the size seen in financial markets. At that scale, they aren’t large enough to overcome the transaction cost of the bookmaker’s vig.
All of the free picks listed on this page show the time of the game and how long you have before it starts, as well as the release time of when the handicapper posted the selection. You can also click on the "View Archive" link on any of the free picks listed to get a full breakdown of all the previous free selections released by that handicapper. 
Where you see “Total O/U” (sometimes called totals betting), this is the amount won on OVER or UNDER picks. For Lega Serie A, the OVER/UNDER is anything that will affect the outcome of the match like injuries (real injuries that occur prior to a game), weather conditions (heat and wind will play major factors in the game’s outcome), and how good or bad each club is offensively and defensively. 
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