Key Numbers in NBA and NFL Betting

Key numbers are something that all online sports bettors should definitely be considering when they are placing their bets for the day.  Consistently keeping your eye on key numbers and line movements is a great idea when you are betting on the NFL, the NBA, or the NCAA.  Basically, key numbers are the numbers that you want to watch for because they either make you want to jump on the bet, or avoid it until it makes the move to the spot that you are hoping to get it to.  What this means is that if a line moves around a key number, you are going to want to get your action in on it, if it goes in the direction that you’re hoping for.  We’ll explain both NFL and NBA key numbers here, and also help you know what to look for in the movements around them.

NFL Key Numbers

For starters, there is no more of a key number in NFL betting than the number seven.  Seven is of course a touchdown, and if you are sitting back looking at a team who is -7, and really think they could easily win the game by a touchdown, you have a decision to make.  You can either check one of your other online sports betting sites, or see if this line is going to move to -6.5.  If you can get the line at -6.5 you are going to want to jump on it no matter what site it’s at, because this is an EXCELLENT line movement for you.  On the other side of things, if you are wanting to bet the underdog and the line is +6.5, waiting until it moves to +7 is a great thing to watch for, and then you can get on the action as well.  The other key number in the NFL is three, because of a field goal.  The same rules as above apply, because betting on a team at -3 and -3.5 is a HUGE difference.  You couldn’t even imagine the number of games that end up coming down to a field goal, and leave those bettors who took -3.5 kicking themselves!

NBA Key Numbers

The NBA key betting numbers are a different world here, and some people actually have different opinions on these lines.  The two most popular key numbers are two and seven though.  The number two is of course because of a game potentially coming down to a one basket game.  So if a team is -2.5, you’d definitely prefer to wait to get that line to -2 if you are a fan of betting on the favorite in this situation.  On the other side, if you like the underdog, getting +2.5 instead of +2 is a big time difference as well.  Now, if the line moves off of that number two, you could potentially be looking at a bet to potential land a win on a middle bet as well, which is a good thing to watch for.  As far as the number seven goes, this is the “three possession rule”, which is basically where a team who is down by three possessions typically won’t continue fouling at this point.  Seven definitely isn’t as popular of a key number as two is, but it’s one to watch for!

author avatar
Jeff Jones

Best Online Casinos 2025
250 Bonus Spins and Cashback up to $1,000. Golden Nugget Online Casino, a digital extension of the iconic Golden Nugget brand, has established itself as a premier destination for online gaming enthusiasts. Launched in New Jersey in 2013, it has since expanded its operations to other states where online casino gaming is legal, offering a comprehensive and engaging casino experience.
Up to $1,000 in bonuses for new customers. FanDuel Casino, an extension of the popular FanDuel Sportsbook, has become a major player in the online casino market since its launch. Available in select states where online casino gaming is legal, FanDuel Casino offers a diverse range of gaming options for players looking to enjoy the thrill of a casino from the comfort of their homes.
Bet $5 and get $200 in Welcome Bonus FanDuel Sportsbook, launched in 2018, has rapidly become one of the leading sports betting platforms in the United States. As of February 2025, it operates in over 20 states, offering a comprehensive and user-friendly betting experience across both mobile and desktop platforms.
$50 in Casino Credit for all new customers.
Up to $1,000 in no sweat bonus bets! Fanatics sportsbook, launched in January 2023, has quickly become a major player in the US sports betting industry. As of February 2025, it's available in 22 states.