Online sports betting matchups are easy to understand. For example, if Jeff Gordon and Jimmy Johnson were matched up against each other in a NASCAR race it might look like this at an online sportsbook: Gordon +120, Johnson -140. This is a straight online sports betting money line where you risk $140 to win $100 on Johnson or the 14/10 equivalent and risk $100 to win $120 on Gordon or the 10/12 equivalent. The only thing you are worried about in a sports betting matchup bet is having your driver beat the other driver.
You get online sports betting matchups in other sports as well. In tennis you might see the same type of sports betting line or you might see a higher line if it was a mismatch. If Serena Williams faced an overmatched opponent you could see the online sports betting money line have Williams at -400 and the opponent at +350.
In this example the online sports betting matchup is a head-to-head online sports betting matchup since the competitors involved directly play against each other in the event. In NASCAR or golf that is usually not the case. The online sports betting matchup was created by the sportsbook to get good action on both sides. The two players are actually competing against the rest of the field but are matched up against each other by the sportsbook on an online sports betting line.
Other examples of online betting matchups you might see have which manufacturer will finish the highest in a NASCAR race (Chevy, Ford, Dodge or Toyota). You might have which country will win a golf match or which country will win a tennis match. These are all money line matchups just like the previous examples, except they match up something different. Online sports betting matchups are a popular way to bet the fringe sports like golf, tennis, and auto racing and something you should take a look at the next time you are betting at your online sportsbook.