It is the third quarter, one team just scored to cut the lead to three, and your sportsbook app has already updated the odds. A few years ago that bet did not exist. Now it is one of the fastest-growing ways people bet on sports, and it works differently enough from a pregame bet to deserve its own explainer.
Live betting, defined
Live betting, also called in-game betting, lets you bet on a game after it starts, with odds that update continuously based on what is happening. You can bet the spread, total or moneyline in real time, plus live-only markets like which team scores next.
How live odds move
Pregame odds are set and then drift slowly as money comes in. Live odds move constantly, sometimes several times a minute, because the book reprices the game after every meaningful play. A turnover, a big third-down conversion or an injury can shift a live spread by several points almost instantly.
The same team, priced five different ways in one afternoon. The pregame number describes the talent gap; the live number describes the game in front of you.
What you can bet once the game starts
Core markets
•Updated point spread
•Updated total
•Updated moneyline
Recalculated from the score and time remaining.
Live-only markets
•Which team scores next
•Whether the next drive ends in points
•The result of the next play
These exist only because the game is underway.
Cash out
•Lock in part of a win early
•Cut a loss before the final whistle
Offers depend on the book and the live game state.
Live vs. pregame betting
Pregame
Live
When you bet
Before kickoff
Any time after kickoff
How often odds update
Gradually, over hours or days
Constantly, sometimes play by play
What you know
Injury reports, matchups, trends
All of that, plus what is happening now
How fast you need to be
No rush
The line can move before you finish the bet slip
Where the opportunity shows up
Say a team opens as a 3-point favorite and falls behind 14-0 in the first quarter. The live spread might flip to make that same team a 3-point underdog for the rest of the game, pricing the hole they are in rather than the talent gap the pregame line was built on. If you believe the early deficit is a fluke, that number can be real value, and it did not exist an hour earlier.
1
Know the pregame number first
It is your anchor for judging whether a live price is an overreaction.
2
Watch for the reason, not just the score
A fluky turnover is different from a starter leaving with an injury.
3
Expect suspensions
Books often pause betting during a play or review, then reopen at a new price.
Live betting questions
What is live betting?
It is betting on a game that has already started, with odds that update continuously based on the score, the clock and what is happening on the field.
How fast do live odds change?
Within seconds of a big play. Books often suspend betting briefly during a play or a review, then reopen with a new price.
Is live betting harder than pregame betting?
It asks for faster decisions and comfort reading a game as it unfolds. It is not harder so much as different: you react to what is happening instead of predicting it beforehand.
Can you cash out a live bet?
Most major books offer cash out on live bets, letting you lock in part of a win or limit a loss before the final result. The offer depends on the live game state.
Sports betting involves risk and is intended for entertainment purposes for adults 21 and older. Please bet responsibly. If you or someone you know has a gambling problem, call 1-800-GAMBLER.
What Is Live Betting? In-Game Odds Explained | Guaranteed Sport Picks
