That 60% betting record (with the odds of -110 that is traditional for against the spread bets in football) will leave you with a profit of $160. Think about it—your $600 profit from your 6 winning bets minus the $440 you lost on losing bets leaves $160. It took you $1,100 to win $160, meaning you have to bet $6.87 to win $1 on average. So you see the small differences between a 52.4% winning rate and a 60% winning rate—inside those 7.3 percentage points lies hundreds of dollars in profit.
Mississippi became the fourth state in the United States to launch sports betting operations on August 1, 2018 when Gold Strike Casino Resort in Tunica Resorts and Beau Rivage in Biloxi started taking wagers.[35] On August 30, 2018, West Virginia became the fifth state to launch sports betting, with Hollywood Casino at Charles Town Races the first casino to offer sports betting.[36] New Mexico became the sixth state to offer sports betting on October 16, 2018 with the launch of sports betting at the Santa Ana Star Casino in Bernalillo.[37]
On December 7, 1980 the San Francisco 49ers overcame a halftime deficit of 28 points in what became the greatest regular season comeback victory in NFL regular season history. By the beginning of the third quarter, notorious Vegas bookmaker Frank Rosenthal received forfeiture notices from 246 San Francisco bettors totaling more than $25,000 in premature winnings. Rosenthal was able to retain these winnings despite the final outcome of the game due to gambling regulations previously established by the NAGRA.[citation needed]

What about financial products which are usually perceived as investment such as Equity (Stock) or Bond (Fixed Income)? Annual Returns on Stock, T.Bonds and T.Bills: 1928 – Current shows S&P 500 (US Stock Index) average is 11.41% while 10 year T-Bond is 5.23%. However, when it comes to the standard deviation (fluctuation of return), off course Stock is much higher. According to CFA Digest, stocks are about 3 times more volatile than bonds on average. Means the certainty of outcome in Positive return of Fixed Income is surely higher than Stock. The below chart is just giving you how the magnitude of the difference of volatility between these 2 assets class are (sourced from Market Realist);
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Perhaps you’ve heard of the Super Bowl? If not then you should know that it is one of the biggest annual betting events. American football is like a religion in North America. It hasn’t been as globally accepted as other sports but its popularity is growing. The NFL is the most well-known American football league there is but NCAA college football, the Canadian Football League, and a couple other smaller leagues have large followings and bookmakers take a lot of bets on them, so you will never run out of markets to bet. A fresh list of betting lines is usually up every Sunday night during football season and punters can’t wait to get their bets in.
Multi-bets. Parlays. Teasers. Whatever you like to call them, know when to bet them and when not to. Sure they offer the promise of the big score, the big pay day, but unless you have done your analysis and have located true value, they are a terrible way to bet. Look at it this way. If you place a multi-bet of 4 legs, and you were getting full price even money odds of 2.00 for each leg, the odds for that multi would be 16.00. Now lets look at a real world example where you're being offered lets say 1.90 for 'even money' with the bookmaker taking out 5%: the odds for that same 4 leg multi would be just 13.00. That's taking out close to 19% of the full price of that bet.

One of those close calls came in a loss at Monmouth by a mere 2-points. That doesn't concern me here, as the Iona won the first meeting 103-84 at home. That fact that they lost the most recent matchup is actually a positive. Favorites of 3.5 to 9.5 points who are revenging a same season loss and playing their 2nd road game in 3 days are 122-67 (65%) ATS going all the way back to 1997. 
In order to beat the juice and win in sports betting, a bettor must employ a disciplined approach in their analysis of each game using methods that have proven to be successful in the long run. I discuss my math models and analytical metrics in my Handicapping Methods essay, but you must realize that only the best and most knowledgeable handicappers can win more than 52.4% of their games. In their 2007 two page article about my handicapping success, the Wall Street Journal wrote, “…fewer than 100 people can sustain (win rates of 55%) over time. Most of them belong to professional betting syndicates that hire teams of statisticians, wager millions every week and keep their operations secret.”
Future wagers. While all sports wagers are by definition on future events, bets listed as "futures" generally have a long-term horizon measured in weeks or months; for example, a bet that a certain NFL team will win the Super Bowl for the upcoming season. Such a bet must be made before the season starts in September, and winning bets will not pay off until the conclusion of the Super Bowl in January or February (although many of the losing bets will be clear well before then and can be closed out by the book). Odds for such a bet generally are expressed in a ratio of units paid to unit wagered. The team wagered upon might be 50-1 to win the Super Bowl, which means that the bet will pay 50 times the amount wagered if the team does so. In general, most sports books will prefer this type of wager due to the low win-probability, and also the longer period of time in which the house holds the player's money while the bet is pending.
When a bookie sets odds for games, he will build what bookies call an “over round” into his set of odds. Another slang term used for this formula is “the juice.” For the sake of simplicity, let’s look at a boxing match where both contenders are equally talented, of equal stature, etc. Since they both have an equal chance of winning, a casual bet may be even money. You put $20 on one guy; your friend puts $20 on the other. Whichever fighter wins awards the bettor with the total of $40.
If you've ever said the phrase "I'm not a numbers guy but....", then you probably shouldn't be a betting guy either. While plenty of gamblers can make a success of it by betting on instinct and 'feel', to be successful long term you need a viable staking plan and you need to understand what the odds reflect in terms of probability. In short, its a numbers game, and you need an adequate relationship with division and multiplication as a minimum.
Bookies look at the weight of their books all the time and adjust odds and other factors to make sure their books balance. Though it isn’t possible to completely balance a book, bookies that go too far out on one side run the risk of losing money, and losing money in gambling is the fastest way to find yourself in another industry. All of these factors are why bookies generally root for the underdog—too many favorites winning in a sport with a short season (such as the NFL) can cause a bookmaker to lose money, while a bunch of upsets (like you generally see in college football) is a guaranteed profit for the bookmaker.
A basketball season with 53.5% winners (my career percentage is 53.9%) on 500 bets would on average yield +11.75 units ( (500*.535) – (500*.465)*1.1 ), or +23.5 Stars if my average Best Bet is rated 2-Stars. Using a conservative 1.6% of bankroll per bet (full Kelly at 53.5% at -110 odds is 2.35% of bankroll), or 0.8% per Star, results in an expected return of 18.8%. So, despite a lower overall winning percentage and smaller average wager size, a season’s worth of basketball wagers is fairly comparable to a season of football because there are so many more Best Bets in basketball season.
Punters that bet on American football look for bookmakers that provide the best odds and the most betting options. The best American football betting sites offer a staggering amount of betting options on each game and many of them have bonuses and promotions that are aimed directly at American football bettors. Enhanced accumulators, free bets, and money back specials are just a few types of wagering incentives that punters should take into consideration.
The last tip I have for you is to try and place your bets at the right time. With lines shifting from the time they are posted to the time the game starts, you will want to get your bet in at the time when you are getting the best price. Predicting line movements is extremely hard but it is worth looking into. Check out the video below that I made titled “When To Place Your Bets”.
Whoever was behind “maria” turned £3,000 into £100,603.78 (after 5% Betfair commission deduction) in 303 days!  She consistently put her selections up on the board in good time before the racing began and the actual selections and strike rate were never in doubt. Many people cast doubt over the true identity of Maria Santonix. Some said it was a man called Adrian Massey who owned a well known horse racing website at the time. The only images available of Maria online are heavily edited so you can not clearly see her. Remember, in 2005 sites such as Facebook were not even invented yet so having your picture online wasn’t as easy or as common as it is today. Therefore, the fact there are no images available of Maria does not mean she is a fake. Sadly, the original thread has been deleted however you can still see the part of it from an internet archive website. Sportstradinglife
You are much better off from a bookmaker's business point of view just hiring a load of mathematically competent and cheap worker drones to copy Betfair/Pinnacle/Wider industry prices, build a few algorithms for in play betting and very closely manage the liabilities as the bets come in. Then just restrict all winners/arbers as quickly as you can and you have a profitable business with virtually no grasp of what a sport price even is.
Ray Wallin is a licensed civil engineer and part-time handicapper who has had a presence on the Web since 2000 for various sports and horse racing websites and through his personal blog. Introduced to the sport over the course of a misspent teenage summer at Monmouth Park by his Uncle Dutch, a professional gambler, he quickly fell in love with racing and has been handicapping for over 25 years.
For now, Paddy Power Betfair will operate like a conventional bookmaker online. To operate an online betting exchange, the company will need that approach to be blessed in state legislation. Levin says the company would also like to see states enter into compacts that would allow the company to share its sports bet liquidity across multiple states.
The Nevada Senate Bill 443 passed in 2015 has made it legal for individual investors to deposit money in a sports betting mutual fund investment entity group for the purpose of betting on sporting events. What are the requirements of sports betting mutual funds and what legal business is needed This sports betting mutual fund entity group is usually a Nevada corporation or LLC formed by gaming executives and sports bettors that manage the fund as a Nevada fiduciary agent. They can solicit funds from investors anywhere in the world. However, major restrictions do apply and is open to anyone that can go through the difficult approval process.
BIG GAME ALERT for TUESDAY: Prez sports a 12-5 (71%) NHL best bet (4%) run and has cashed four of his last six NHL Main Events. He has isolated a Tuesday night affair on the ice that gives one group of skaters a signficant edge over their conference foe. Join Prez in the rink Tuesday night with this MAIN EVENT 5% NHL GAME OF THE MONTH (12-5)... just $9.00 until Monday at midnight.

This actual 1.91 odds is a 52.4% of probability of outcome, therefore you need 52.4% winning rate rather than 50% to achieve break-even. So it’s a betting Magic Number. Bookmaker’s margin unfairly forced you to win 2.4% more rate to achieve equal return (means you win the exact amount of your own stake). Well, from other perspective, you don’t need any unrealistic winning rate like 70% or 80% to be profitable as often advertised by rogue tipsters. You need only 52.4%, and anything over than that is your profit.
As a matter of fact, offshore sites like Bovada, SportsBetting, BetOnline, and 5Dimes all have mobile apps that are available for download right from their site. Bovada is the only one in the pack that has an official app in the app store. But, each site is mobile friendly and offers all the latest odds and ease of making deposits right from your smartphone or tablet.
The team points out that this kind of practice could be illegal. “Advertising goods or services with intent not to sell them as advertised, or advertising goods or services with no intent to supply reasonably expectable demand but with the intention to lure the client to buy another product (a practice often called ‘bait’ or ‘bait and switch’ advertising), is considered false advertising and carries pecuniary penalties in the U.K., Australia, and the United States of America,” say the team.

Reason number two that the bookie wins: He “charges” people to bet. The odds that he offers don’t add up to an implied probability of 100%, the remainder being potential profit for the bookie (known as the “vig” in the US). Depending on the event he might be charging a couple of percentage points (so on average he’ll make $2 for each $100 bet) to a couple of hundred percentage points (so on average he’ll make $200 for each $100 bet). It depends on his certainty around his estimate, how dodgy he is, how dumb he thinks his punters are, how much competition he has, and so on.
Professional sports bettors have to worry about variance more than any other type of gambler. Working against the forces of variance means managing your bankroll over the course of the season to avoid the negative possibilities that could totally empty your wagering account. Professional sports bettors have the time and resources necessary to calculate these variances, and there are even a few pieces of software out there that can help you figure out your ideal bet in the face of negative variance. But the bottom line is that professional sports bettors would dream of having a 55% winning record, simply because it guarantees you’re beating the house.
Patience pays off. It is better off to wait for a promising betting opportunity with high odds at best than to bet on anything. It cannot be recommended to bet on the favorites only. The odds are low and so you collect the wins slowly, while hesitations occur and they can easily put you in the red. Also betting a low amount on a great number of events (the odds are multiplied) can be considered a hobby or waiting for a miracle just like in a lottery.

When Tottenham and Borussia Dortmund clash on Wednesday in the first leg of their UEFA Champions League Round of 16 matchups, this will mark the third meeting between the two clubs in the last three seasons. Tottenham did the double over Dortmund in the 2017 Champions' League group stage, while Dortmund got the jump on the Hotspurs in the 2016 Europa League quarterfinals. Read More >>
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