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In sports betting on a proposition, also called a prop bet or a prop, a wager is placed on anything other than a point spread, moneyline or game total. Exactly what this wager might be is anything from which team will score first, to which quarterback will have the most passing yards, to any other scenario described by a betting site.
This form of wagering is generally considered the easiest to beat. To support this, Las Vegas’ number one sports book for prop wagers, the Las Vegas Hilton, has gone on record many times claiming that Las Vegas sports books frequently lose money on prop bets. Meanwhile, many betting sites willing to take $5K-$40K per bet on NFL sides limit props to $200 or $300 max bets.
The reason props remain the easiest wager to beat relates largely to careless bookmaking. Don’t get me wrong: this is not at all a knock on the bookmaker. With several hundred lines to create and manage, lines managers are content with simplistic methods and low betting limits for small market props. This means that it is quite possible for a serious low to mid-stake pro to analyze a single prop in far greater detail than the odds maker that created it. Meanwhile, the small max betting limit keeps the sharks away and allows for line movement based on recreational action. Careless bookmakers, no sharks, and lots of fish, sounds like a profitable market to me.
To make one thing clear about prop betting, the more smart bettors there are betting props, the lower the opportunity becomes. No one in their right mind is going to write a detailed guide to betting props. To learn, you’ll need to pick things up in bits and pieces. So, while you’ll need to do some digging to get to the point where you can analyze any prop offered, I’ll go ahead and get you started in the right direction. Here, I’ll cover a prop widely available for NFL football, “Which team will score first?”
To give this example, I’ll take my notes from the 2010 Thanksgiving Day game between the New England Patriots and the Detroit Lions. My first step in looking for value on the “which team to score first” prop was to shop as many betting sites as possible offering the line. These are the options I found:
- Bookmaker.eu: Patriots -175 / Lions +145
- Sportsbook.ag: Patriots -165 / Lions +135
- Pinnacle: Patriots -147 / Lions +126
- 5Dimes: Patriots -150 / Lions +130
- TheGreek: Patriots -170 / Lions +140
After grabbing the lines, I am rather optimistic. My choices are Patriots -147 / Lions +145 which is such a slim margin that if the lines moved any further, I’d have an arbitrage opportunity. I’m interested enough to take the next step.
If you’re not familiar with the term derivative, this is an important one in sports betting, and as you learn strategy, you’ll become quite familiar with it. To give it to you simply, the prop bet we’re looking at “which team will score first” is a derivative, derived from the game’s first half betting lines. To analyze this prop further, I went line shopping on these as well and found:
- Bookmaker.eu: Patriots -4 / Lions +4 (25)
- Sportsbook.ag: Patriots -4 / Lions +4 (25)
- Pinnacle: Pats -3.5 -116 / Lions +3.5 +105 (o24.5 -102 | u24.5 -108)
- 5Dimes: Patriots -4 -105 / Lions +4 -115 (25)
- TheGreek: Patriots -4 / Lions +4 (24.5)
Pinnacle and 5Dimes are two sites that work hard to keep their lines accurate, where Sportsbook.com, Bookmaker and TheGreek are more content with pricing each side at -110. These are the lines I want to pay the most attention to. Using a method I shared in my article on Future Betting, I calculate the no vig line at 5dimes as Pats -4 +104 / Lions +4 -104 and the no-vig line at Pinnacle as Pats -3.5 -110 / Lions +3.5 +110.
The proper method from here would be half-time push analysis of the favorite winning the first half by 4 points. With detailed research into this, I could convert the 3.5 line at Pinnacle into a 4 point base, average each line out and create a very accurate predicted first half margin of victory. Or, to keep things simple, I can just say: based on these two lines, the Lions are predicted to cover +4 slightly more often than the Pats cover -4; but when it gets closer to a 3.5 spread, the odds quickly shift in the Pats favor. Fractions of a percent will not matter much, so ballparking this as Pats -3.9 works fine.
As far as the total is concerned, the difference between 24.5 and 25 on a half point spread is extremely factional. In fact, examining 5 years of NFL data, not once has a half time score totaled 25 points. It’s an odd number that is difficult to get, based on 7 point and 3 point scoring intervals. In this spot, I’m going to trust Pinnacle and theGreek and go with 24.5, though I will loop back to it before making a bet.
What I have now is the Pats winning by 3.9 and a total combined score of 24.5 for the first half. With this info, I can subtract 3.9 from 24.5 and get 20.6. I give half those points to each team (10.3 each) and then add the 3.9 back in, giving it all to the Pats. What I end up with is a predicted score of Pats 14.2 Lions 10.3. This score has Pats winning by 3.9 points and a total of 24.5, so the prediction fits.
The next thing we need is the magic formula bookmakers use to get a moneyline out of a predicted score. For the favorite, that magic formula is: -100 * (Favorite Score / Underdog Score). In this example, the math is -100 * (14.2/10.3), which equals 137.8. If my calculations were correct, the true moneylines for which team will score first is Pats -137.8 / Lions +137.8.
Let’s look at the method we took a shortcut with earlier, the first half total. Pinnacle suggested the total should be slightly less than 24.5. Meanwhile, other betting sites had the total at 25. I’ll save showing the math here, but calculating this with 24.4 as the total score, I get Pats -133 / Lions +133, and calculating with 25 as the total score, I get Pats -138 / Lions +138.
Here, I’ve now calculated that the fair price on the Lions scoring first ranges from +133 to +138, and believe my +137.8 analysis is the most accurate. I’m confident enough now that Lions +145 is a +EV bet, so I go ahead and make that wager at Bookmaker.
After making this bet, I noticed something interesting. The 5Dimes line Pats -150 / Lions +130. When backing vig out of this line, I realize 5Dimes has the no-vig moneyline at Pats -138.1 / Lions +138.1. 5Dimes is the hands down leader in the market when it comes to prop bets. They offer more props than any other betting site, and they also operate with the lowest margin (least vig). If I want my calculated true-value money to match any betting site’s no-vig lines, 5Dimes is the site. Again, this is something I only noticed after making the bet, but it certainly increased my already high confidence level that Lions +145 was a +EV bet.
A Little About Derivatives
The prop bet we just analyzed was a two level deep derivative: Which team to score first is derived from the half time line, which is derived from the full game line. If you’ve read my article on the current betting market, you likely understand that the top level derivative here is the most efficient. The beautiful thing about derivatives in sports betting is that as the main market moves, derivatives follow at a slower pace. Going back earlier in the week to when this prop market first hit the board, the Patriots were favored by more points than they are now. The fact that a small-market level two derivative never fully caught up, combined with recreational bettors moving the line, are the reasons we were able to find this +EV bet. This is an article for another time, but one of the top ways to win in sports betting is to find slow moving derivatives. When you go forward to learning other props, look for ones that are as many derivatives deep as possible, and you’ll have an easier time quantifying your edge.
In this article, I’ve given you a trick of the trade in great detail that can certainly be converted into cash via winnings. As a small favor, if you appreciate this information, please click this link to www.Bovada.lv and open an account to support us. Once again, we appreciate all of our readers support, and we wish you the best of luck in finding +EV prop bets.
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Are you looking for the best sites for betting on sports and horse racing? Well, stick around, because this is all about showing you the best online betting sites.
Here are the 3 Best Online Betting Sites / Sportsbooks
Bovada
Bovada has changed the face of Sports betting online. They have a great sportsbook, racebook and one of the largest online poker rooms for players in the US. Their racebook is only open to North American thoroughbred and harness races.
Bonuses
Bovada offers a 50% signup bonus up to $250 and a bitcoin sports bonus of 50% up to $500 with a promo code. There is also a 100% match bonus eligible up to $1,000 and a bitcoin casino signup bonus of 150% match up to $1,500, both of which are redeemable up to three times. You starting bonus requires you to bet 5 times the amount of your initial deposit and bonus.
Deposits and Payouts
They only offer two ways to make a deposit and that is with credit cards and bitcoin.
Their payout system has improved massively over the years. In the past, this was the main complaint about Bovada, but now that they fixed it by speeding up the process and being one of the first online sports betting sites to offer bitcoin withdrawals.
The minimum deposit amount is only $20.
Customer service

They offer 24/7 toll-free customer service via telephone. They can help you in English, Spanish or Portuguese, and they don’t offer live chat, the wait time is about 1 minute on phone calls and a few minutes for emails. Bovada covers all the major sports. They offering straight bets, teasers, if bets parlays, futures, and props on just about any sport. This makes Bovada one of the best Online sports betting sites.
BetOnline
BetOnline is great for sports gambling online in many ways, but especially with baseball. They constantly work to improve the online experience with their bonuses and other elements such as betting types.
Bonuses
BetOnline has a 50% signup bonus up to $1,000. There is also a 25% reload bonus eligible up to $1,000 and a $100 bonus for every friend who signs up and makes a deposit.BetOnline also has free play reload bonuses.
Deposit and Payment Options
You can make a deposit with Visa, Mastercard, Discover Card, Diners Club cards or American Express. They also accept Moneygram or Western Union transfers, bank wire transfers, Bitcoin and Etherum deposits, checks, or you can send money from your Skrill account. Offering so many options makes them one of the Best Sports betting sites.
The minimum deposit amount is only $10, which is the lowest you’ll find.
Customer Service
They have great, round the clock customer service. BetOnline has live chat, a toll-free phone number both can be reached 24/7 in English or Spanish.
Having separate email addresses for the casino, racebook and sportsbook is a huge plus in terms of getting results when you have a problem.
Sports Betting Forum
BetOnline is a great gambling site because they put lots of effort into their Racebook. They have a well-run blog that offers advice for gamblers of all skill levels and they really know how to keep novice bettors interested and coming back.
MyBookie
MyBookie is another place which offers Sports betting online. They are newer than the others but already have a great reputation online.
Bonuses
They 50% signup bonus up to $1,000, a 100% casino signup bonus up to $300. While the refer-a-friend bonus is only 10%, that can be offset if you refer high ticket customers to them. They also have a 3- tier loyalty program that offers free payouts, birthday gift cards, game seats, and more bonuses.
Deposit and Payment Options
They accept Visa, Mastercard, Bank Wire, Check, and Person-to-Person Transfer for deposits. The minimum deposit amount is $50. You are allowed one free payout, then you’ll be subjected to a fee for each withdrawal.
Payouts are completed within 48 hours. This makes them a top sites out there.
Customer Service
They offer a live chat customer service or you can call them 24/7, but they only support English. They are one of the newest betting websites, but they’re one of the top sites for Sports gambling.
Sports Betting Help Sites
These websites are Best Sports betting sites because they value their customers and constantly work to make improvements.