Best March Madness Betting Promos in 2025

March Madness is one of the most heavily wagered-on sporting events of the year. Just in time for the 2025 tournament, we’ve compiled a list of top U.S. sportsbooks offering promotional deals you can claim when betting on your favorite college basketball team. 

From DraftKings and BetMGM to Caesars and more, these sportsbooks provide a variety of bonus offers to help you get the most out of your March Madness bets.

Betting on March Madness is one of the pinnacles for all sports bettors and sportsbooks. Below you will get access to the best MM picks for today and the best sportsbook bonuses to combine those bets with:

Bet365 Sportsbook

Bet365 Sportsbook is bringing one of the most exciting offers for the NCAA tournament! The Bet365 bet and get bonus bets is one of the best we could stumble upon so be sure to take full advantage. The promo is precisely as it is described. Follow the link and make your first deposit of $10 or more. Make your first bet for just $5 or more and get credited with bonus bets, win or lose!

1. Sign-Up: You need to create a new account with Bet365.
2. Qualifying Bet: Place your first bet of at least $5 on any sports market at the odds specified in the offer's terms and conditions.
3. Receive Bonus Bets: Once your qualifying bet is settled, Bet365 credits your account with bonus credits.
4. Using Bonus Bets: You can use these bonus credits to place additional bets without risking your own money. However, you won't receive the stake back with any winnings from bets placed with bet credits.
5. Wagering Requirements: Check if there are any wagering requirements or restrictions on how you can use the bonus bets, such as specific sports or events.
6. Expiration: Bet credits often come with an expiration date, so make sure to use them before they expire.

DraftKings Sportsbook First Bet March Madness Offer

At DraftKings Sportsbook, new customers can claim a first bet offer. This promotion triggers a bonus bet reward after placing your first bet at DraftKings sportsbook.

1. Sign Up: Create a new DraftKings account.
2. Deposit: Add funds to your account. Ensure your deposit meets the minimum requirement for the promotion.
3. Place Your First Bet: Make your first bet on any qualifying market or sporting event offered by DraftKings.
4. Receive Bonus Bets: The bonus bets will be credited to your account after the settlement of your first bet.
5. Use Bonus Bets: You can utilize these bonus bets to place additional wagers within DraftKings' sportsbook on various sports and events.

Caesars Sportsbook

March Madness action gets very exciting at Caesars Sportsbook. There, bettors can get their first bet on Caesars. That means bettors can place their first bet on this year's NCAA Tournament. Should that bet fall short, bettors will get their money back in bonus bets, so they can try again to pick a winner during the tourney.

1. Sign Up: Create a new account with Caesars Sportsbook.
2. Deposit: Make a deposit into your account. The deposit should meet the minimum amount required to qualify for the bonus.
3. Place Your First Bet: Make your initial bet on any qualifying event or market available on Caesars Sportsbook.
4. Receive Bonus Bets: The bonus bets will be added to your account after your first bet is settled.
5. Utilize Bonus Bets: You can use these bonus bets to place further wagers on different sports or events offered by Caesars.

Basketball odds function in the same way they do in most other sports. When sportsbooks determine College Basketball odds, they keep the general public in mind and assign probabilities based on a variety of parameters.

The odds tell you how much you may expect to win if you place a specific wager. For instance, if you bet on a team with odds of +110, you stand a chance of winning $110 for every $100 wagered. However, if the odds are -110, your projected winnings are $100 for every $110 wagered. The proportion does not change no matter how large or small the bet.

The advantage of betting at regulated US sportsbooks is that they offer a diverse choice of betting markets and alternatives. In addition, they provide fantastic benefits and promotions such as welcome bonuses, bonus bets, and loyalty prizes. We will go over some of the betting markets accessible in college basketball below.

Moneyline

The most popular betting option offered in college basketball tournaments is the moneyline bet, in which you simply place your money on a specific team to win the game.

Point Spreads

Point spreads are another college basketball betting market available at top sportsbooks. To balance out the chances of each team to win a game, handicappers offer a team a positive or negative handicap to level the playing field. Bettors are then tasked with picking which team will have a higher score after that handicap is applied.

Totals (Over/Under)

The totals, or over/under, betting option is available at most top sportsbooks in the United States, including those we suggest. With this market, you are betting on the total amount of points that will be scored in a game. You can bet that the number of points scored will be less than or greater than a certain value set by the sportsbook.

Proposition Bets

This is a one-of-a-kind wager that has nothing to do with the result of the game. Prop bets are an excellent option for knowledgeable bettors since it allows them to forecast occurrences in a college basketball game without having to worry about the score itself, such as how many points a player will score.

Parlay Bets

Parlays let bettors risk a small amount to potentially win a large amount. With parlays, bettors make multiple selections and combine them into one ticket. For the parlay to win, bettors need every leg of it to win. If even one leg of a parlay loses, the whole thing is graded a loss. This is why the odds for parlays can be so long, as one wrong move tears the whole thing down.

Teasers

Teasers are bets that are comparable to parlay bets. However, one notable distinction between these two betting choices is that teasers allow users to tailor the point spread or total to their liking. As a result, teasers also have lower odds than parlays.

When betting on any NCAA Tournament game or outright market, users must take a few things into account. Here are some of these variables bettors should consider and how they may affect your forecasting of college basketball tournament action.

Current form

Examine the current performance levels of a college basketball team on which you want to bet. A team that is peaking going into the tournament could be dangerous to their competition, but they could also be overvalued in the betting markets. Conversely, a team that has hit a rough patch right before March Madness may be worth avoiding when placing bets.

Coaching

Coaching is so important in college basketball, as coaches are called upon to guide the relatively inexperienced players at the college level. Brilliant college basketball minds like Tom Izzo or Bill Self can really elevate talented teams to a championship level.

Past performances

Bettors should look at how a program has performed throughout the season as a whole, along with how they have performed at previous NCAA Tournaments. This can give bettors a clearer picture as to what they can expect going into March Madness.