What does “Free Bet” Mean in Gambling Marketing?

An NFL bettor bets $50 on the Chiefs moneyline at -150, loses the bet, and then receives the promised $50 free bet credit in his account. Easy enough. Place the free bet on a winner, though, and the payout looks suspiciously smaller. The stake on that free bet was not returned. The juice hasn’t changed, but neither have the apparent odds. Turns out that money tree was actually an upside-down illusion. 

There is no sportsbook conspiracy to get sports bettors to lose their money. But there is math. And once you understand it, you’ll never read a sportsbook promotion the same way again.

How Free Bets Actually Work

A free bet is a token. This is the biggest difference any bettor should make. When you place a $50 free bet on a game and win, most regulated US sportsbooks pay you only the profit, and not the $50 stake.

For instance, if you get a $100 free bet, you play it on the Lakers to win at +150. If it wins, you get $150. If the free bet token pays you only $150, the sportsbook keeps the token. In a -110 spread bet, if you win a $100 free bet, you’ll get $90.91 back. This is not how you should expect to make a profit on a free bet.

Add to this the standard wagering conditions, and the picture gets better. Free bets at most US sportsbooks must be used within 7 to 14 days, and most have minimum odds of -200 or greater. Some break a bonus into several smaller tokens. Every term has limits on how and where you can use the credit.

Why Bettors Think it is a Better Deal Than it is

Free bets hook people on the basis of risk aversion (in the belief that “risk-free” bets are safer than regular bets, even if the real risk is greater after the terms).

US players looking to take advantage of cheap NBA or NFL live betting enticements, such as “$200 free bets,” may never see the full value. In actuality, after the no-stakes bonus and minimum odds, the offer is worth 60 to 70 cents or less per dollar.

Sportsbooks know this gap exists. It’s legal marketing playing on our perceptions of numbers. We prefer the free bet of $150 to a $90 deposit match over the free bet of just $90.

Where the Logic Breaks Down

Free bets have math in them, too. A $50 free bet on UFC action at +200 (33% implied odds) will return $33 (33% of $100 profit). A real $50 bet pays $150 upon a win or keeps the $50 on a loss.

It's really hard for short-term favorites. $100 free bet on an MLB -18 (64%) -180 (34% implied) pays $55.56, with $35 EV. The real money gets to keep the $100 if it loses. There's no floor on free bets.
Free bets are another way the sportsbooks do not build your profile as a bettor. They monitor your handling for bonuses. While free bets are not guaranteed to win you some bonuses, it is possible, depending on the platform and the rules that casinos are allowed to offer them.

Is the Offer Worthless?

Not exactly. Free bets are not scams. They are promo tools that can provide real but limited value depending on their usage.

They improve EV with longer odds because they lose less without any stake return. So if you bet $50 free on +300, you will win $150 compared to $33.33 on a -150 favorite. I’m not advocating long-term underdog betting. I’m just suggesting you use your free bets as well.

The other issue is that you can't be sure what to expect from a "$250 free bets" offer. In fact, the free bets are conditional tokens worth $50 to $100 in real money, depending on the odds, usage, and expiry.