Betting On Sports Games

Live In Game Betting Explained. For years, bettors have been able to go online and wager on sports but live in-game betting has not been explained to the majority of the country. By using local sportsbooks as well as offshore betting sites, live betting allows for bettors to access odds and lines at all points of the game. Monitoring public betting data is a vital tool used by sharp bettors to find value within the sports betting marketplace. Spread A point spread allows bettors to wager on the margin of victory in an NFL game. Sports betting is also a way for a fan to get in on the action of the game, with something more than self-respect at stake. All gambling is mathematics, even games of chance. If you understand the math behind the game, you understand the game and can give yourself an advantage. Betting on sports simulation games is becoming its own unique offering at the best online sportsbooks. These types of games offer a branded sports-themed market where bettors can put their existing strategies to good use.

Introduction

I have a ton of stuff on this website about sports betting. Way to much to fit on one page. If you're already familiar with the basics of how to make a sports bet, I invite you to go to skip this page and jump to one of my pages on a specific sport, as follows:

If you're new to sports betting, this page will endeavor to teach you the major types of bets. We'll use the photo above as a reference for some of them. In particular, we'll focus on the Rams/Vikings game, which looks like this:

Oct. 11, 2009 — Vikings Vs. Rams

In all sports betting, the odds are on a 'to one' basis. In other words, you always get your bet back, plus winnings, if you win. So, for example, if you must bet $11 to win $10, then you would present $11 at the window and the writer will give you a ticket worth $21 if it wins.

Money Line

Money Line bets are simply on whom will win. No point spreads or any other nonsense.

Most of the time, one team will be favored over the other. So, if you bet the underdog, then you're rewarded with more than even money if they win. If you want to bet the favorite, then you will have to risk more than what you stand to win.

Consider game numbers 401 and 402 in the example above. The +400 for the Rams means that a bet on the Rams would pay 4 to 1. The -600 on the Vikings means that if you bet them, then you have to lay 6 to 1.

Examples:

A $100 on the Rams would win $400.
A $600 bet on the Vikings would win $100.

Point Spread

The most common way to bet football and basketball is with a point spread. Most sports bettors like a wager that has about a 50% chance to win. Less than that and you'll probably lose. More than that and you won't win much if you do win.

To achieve about a 50/50 chance of winning a bet on a lopsided game, like the Rams vs. Vikings above, the sports books have come up with the 'point spread.'

Before I go on, let me clarify some terminology. Despite it being probably the most popular way to bet, there is no particular term for a bet against the spread. Many people call this a 'straight bet.' However, this term can also be used, and is printed on tickets for, money line bets, total bets, and any other bet involving just one game. For purposes of this page, I call such bets a 'point spread' bet, and invite the rest of the world to adopt this terminology.

A point spread is simply a handicap you give the weaker team, or deduct from the stronger one, depending on how you look at it. For example, if my average scoring in bowling is 120 and I play somebody with an average of 140, then to make a wager fair, I might be given a free 20 points. In this case you would say my point spread is +20.

In the example above you can see a -10 next to the Vikings. That means that the Vikings are favored to win by 10 points. So, if you bet the Vikings you give up ten points and if you bet the Rams you get 10 points.

Usually with point spread bets you risk $11 for every $10 you stand to win.

Examples:

A $110 bet on the Rams would win $100 if they win the game or lose by less than 10.
A $110 bet on the Vikings would win $100 if the Vikings win by more than 10.

Both bets will push if the Vikings win by exactly 10.

Total

Total Bets are similar to point spread bets, except the bettor bets on the total points scored. In the example above the bettor bets whether the total points combined between the Vikings and Rams will be over or under 41. Like point spread bets the bettor must generally risk $11 to win $10, for a house edge of 4.54%.

Examples:

A $55 bet on the under would win $50 if the total points in the game were 40 or less.

A $55 bet on the over would win $50 if the total points in the game were 42 or less.

Any bet on the over or under would push if the total points in the game were exactly 41.

Parlays

Parlay bets are a good and popular way to potentially win big with a small wager. The way they work is the bettor picks two or more events, which all must win or push to win the bet. One or more loss will cause the whole parlay bet to lose. In the event of a push, that 'leg' of the parlay bet will be ignored and the win will be reduced to whatever it would pay if that selection were never made.

The way the win on parlay bets is calculated is as follows:

If the player made two or more picks that are at -110 odds, then a parlay table will be used to determine to determine the win for just those events. These tables offer stingy odds, except for the two-leg parlay.
After that, a mathematical calculation will be used for the other legs, as if the player made each bet independently.

As an example, consider the following parlay bet I made at the Golden Nugget, for the purposes of example only.

Note the parlay above contains four legs at -110 odds and one at +210. The Golden Nugget pays 11 to 1 for a four-leg parlay. The total return of a parlay, including the return of the original bet, is the product of what every bet would be on a for one basis. In this case, $10 × 12 × 3.1 = $372.20.

My advice on parlays is to never include more than two legs at -110 odds.

For more information on parlays, please see my section on parlay bets the NFL. You can also find a survey of Las Vegas parlay tables at Wizard of Vegas.

Teasers

Teasers are similar to parlays except the point spread on each game moves a certain number of points in the player's favor. In football the player gets 6 to 7 points, and in basketball, 4 to 5 points. The player pays for this in the form of much lower winnings. For example, if the Vikings were part of a 6-point teaser, then they would only need to win by more than 4 points to cover. If the Rams were part of a teaser, they could win, or lose by less than 16, and cover.

More information:

Sports Betting Line

Teaser bets in the NFL.
Vegas sports book comparison for the teaser odds at all the Vegas sports book groups.

Buying Half a Point

In football and baskbetball, the straight bet player has the option to move the point spread 1/2 point to his advantage. The cost of this half point is laying 120, as opposed to 110. Not all sports books allow this, and if they do, they usually don't let you buy off of the common three-point margin of victory in football.

Futures

Futures are a bet on who will win the championship when there are still more than two possible teams to bet on. The house edge on futures varies substantially from one sports book to another. However, in general, they are a sucker bet.

More information:

For information on who does offer the best futures in Las Vegas visit my sports betting appendix 5.
You can also use my sports futures calculator to calculate the overall house edge of a set of futures bets.

Propositions

Often big games will have 'proposition' bets on things not directly related to the final score of the game. These are usually abbreviated to 'prop' bets. For example, in football whether or not the first score will be a touchdown. In baseball whether a run will be scored in the first inning. In hockey/soccer, whether anybody will score a hat trick. The odds on these are expressed like point spread bets. For example, as I write this the Golden Nugget has the following proposition bet on Super Bowl 49:

Will there be a safety in the game?
Yes: +500
No: -700

This means a bet on the 'yes' pays 5 to 1, and on the 'no' pays 1 to 7.

More information: