Unlock $3000 in Bonus Bets for Round of 16

You may be interested in the best March Madness promos while betting on Sweet 16 games. If so, we have you covered with $3,000 in total bonus bets on this page alone! 

You can find out which are offering the top deals below. We’ll be discussing the best offers, their terms and conditions, and how to claim them. Also, note that one of these deals is completely exclusive to Gambling.com visitors.

March Madness Bonuses For Round of 16

The best bonuses for March Madness Sweet 16 betting fall into multiple categories. You can expect bonus bets, first bet insurance, and bonus wagers for a year. Not all of these deals will last past the Round of 16, so you’ll want to act on any interesting offers ASAP. In other cases, you have until the Championship Game on April 3 to cash in.

Best College Basketball Bonuses Available Today:

BetMGM March Matchups Promo: Bet $10, Get $200 in Bonus Bets

BetMGM is offering an exclusive bonus to Gambling.com visitors through code GAMBLINGMARCH. You’ll receive $200 in bonus bets when you place at least a $10 wager at . The bonus wagers come as four separate bets worth $50 each (4x$50).

Wagering requirements

Winnings from bonus bets are subject to 1x wagering requirements (a.k.a. rollover). Other notable terms include:

• $10 min. deposit
• $10 min. first bet
• Open to new depositors from now until April 3, 2023.

How to Claim the Offer

You can get your $200 in bonus bets through the following steps.

1. Visit BetMGM.
2. Register and enter code GAMBLINGMARCH.
3. Make a first-time deposit worth $10 or more.
4. Place a first wager worth at least $10.

Gambling problem? Call 1-800-GAMBLER (CO, DC, IL, IN, LA, MD, MS, NJ, OH, PA, TN, VA, WV, WY) Call 877-8-HOPENY or text HOPENY (467369) (NY). Must be 21+ to wager. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-270-7117 for confidential help (MI). Visit BetMGM.com for T&Cs. US promotional offers not available in NV, NY or ON.

Betway Bonus For March Madness - $250 Bonus for Round of 16

Betway is providing bet insurance on your first wager up to $250. You can qualify by depositing at least $10, opting-in, and placing your first wager. If this bet loses, you’ll receive a matching bet credit worth up to $250 from .

Wagering requirements 

You only need to meet 1x wagering requirements on bet credit winnings. Other terms and conditions are as follows:

• $10 min. first deposit.
• First wager must be at -300 min. odds or greater (e.g., -230).
• Your first bet needs to settle within 7 days.
• Bonus bets expire within 7 days if not used.
• This deal runs until April 3, 2023.

How to Claim the Offer

You score this bonus through the following steps:

1. Opt-in to the promo.
2. Make your first wager at -300 minimum odds or greater.

Ends: 09/05/23. Must be a new verified Betway patron. 21+. Opt-in may be req’d. Make your first min. deposit of $10+, place a wager up to $250 (with odds of at least –300 (1.33)) and receive up to $250 as bonus bet funds if the wager loses. Wager must be settled within 7 days from new account opening. Qualifying wager restrictions apply. Any bonus bet funds earned must be used within 7 days of receipt. Bonus bet funds are not the same as cash, must be used in the Sportsbook, and are subject to restrictions. Promo subject to full T&C’s us.betway.com/sport/bonus-terms. Gambling problem? Call/text 1-800-GAMBLER.

Bet365 Bonus Code GAMBLING for Sweet 16: Get $365 in Bonus Bets

Bet365 was one of the few March Madness betting sites that offered a “First Four” bonus. Now it’s back with a Bet $1, Get $365 for the Sweet 16. You only need to wager $1 (or more) at and collect $365 in bonus bets.

Wagering requirements 

Rollover is 1x on the winnings from bonus wagers. You can see the other important terms below:

• Promo runs from now until March 26, 2023.
• $10 min. first deposit.
• $1 min. first bet.

How to Claim the Offer

1. Visit Bet365 and use code GAMBLING.
2. Deposit $10 or more.
3. Bet at least $1.
4. Get $365 in bonus bets.

DraftKings Bonus for Sweet 16 - Bet $5 Get $150 in Bonus Bets

DraftKings is offering a Bet $5, Get $150 deal to tournament bettors. Simply put, you need to place a $5 minimum wager to get $150 in bonus bets. delivers these bonus wagers as six separate bets worth $25 apiece (6x$25).

Wagering requirements 

All bonus bet winnings carry a 1x rollover requirement. Here are the other terms and conditions:

• $5 min. first-time deposit.
• $5 min. first bet.
• Bonus bets come as six wagers worth $25 each (6x$25).
• Promotion runs until March 24, 2023.
• Bonus bets have a 7-day expiration date.

How to Claim the Offer

Pick up the DraftKings Sweet 16 bonus through the steps below:

1. Visit DK through our link - .
2. Deposit $5 or more.
3. Place at least a $5 bet.
4. Collect $150 in bonus wagers.

FanDuel March Madness Bonus - 10x Your First Bet Up to $200

The FanDuel bonus will provide bonus bets worth 10x your initial wager up to $200. If you bet $10, for example, you’ll receive $100 in bonus bets. Of course, you could just get the maximum bonus by placing a $20 wager at .

Wagering requirements 

You need to meet 1x wagering requirements on any winnings from bonus bets. Other terms include the following:

• $10 min. first deposit.
• $5 min. first bet.
• All sports and events are eligible—not just the Big Dance.
• Deal lasts until March 26, 2023.
• Bonus wagers hit your account within 72 after the first bet.

How to Claim the Offer

Here’s how you get the FanDuel Sweet 16 bonus:

1. Deposit $10 or more.
2. Bet at least $5.
3. Get bonus wagers worth 10x your first bet ($200 max).

Tipico Sportsbook March Madness Promo - Bet $20 Get Bonus Bets for a Year!

Tipico is breaking the mold by running a March Madness betting leaderboard contest. Over $500,000 in prizes are available, including bonus bets for a full year. You participate by placing $20+ wagers at -200 minimum odds. You’ll receive points for every qualifying bet and move up the leaderboard.  First place gets $100 in bonus wagers every week for a year.

Wagering requirements 

You don’t need to meet wagering requirements on leaderboard prizes, but you do have to follow other terms:

• $20 min. bet for qualification.
• All qualifying wagers must be at -200 odds or better (e.g., -170).
• You receive points for qualifying bets.
• Eligible states include IA, NJ, OH, CO.
• This betting contest lasts until April 3.

How to Claim the Offer

Here’s how to participate in the Tipico March Madness leaderboard event:

1. Visit Tipico using our link. - GET BONUS HERE
2. Deposit $20 or more (must meet $20 min. wager).
3. Place each $20 bet at -200 odds or greater.

Caesars March Madness Bonus Code “GAMBLINGFULL” - Get a $1,250 Bonus

Caesars stands out for its smooth-running app and top-tier rewards program. It also shines thanks to a March Madness bonus worth up to $1,250. You can claim this deal by registering at with the code GAMBLINGFULL. The next step is to place your first bet and check the result. If you lose, you’ll receive a bet credit worth up to $1,250.

Wagering requirements 

Like the other offers, this one requires 1x wagering requirements on bet credit winnings. You should also check out the following terms:

• Promotion runs until April 3, 2023.
• $10 min. first deposit.
• $10 min. first bet

How to Claim the Offer

You get the Caesars Sweet 16 bonus by following the steps below:

1. Register and use the code GAMBLINGFULL.
2. Deposit $10 or more.
3. Waget at least $10.
4. Receive up to a $1,250 bet credit if your first wager loses.

How Do We Select the Best March Madness Bonuses for the Big Dance!

We look at various factors when choosing the best March Madness betting promos, including the following:

• Type of offer – Ex. Bonus bets are the most popular deal among many bettors.
• Size – $200 in bonus bets is superior to $100 in wagers.
• Wagering requirements – The best offers typically have 1x rollover.
• Long expiration dates – You want ample time to earn bonuses. 
• Minimum odds – Some bonuses let you place bets on up to -300 favorites.
• No ambiguous terms – Every term should be clear to bettors with no surprises involved.

Best March Madness Bets for Round of 16 

The Sweet 16 presents plenty of great betting opportunities every year. But which are the absolute  for this round in 2023? You can see our favorite college basketball picks below.

• #1 Alabama -359vs. #5 San Diego State +274 – Some are calling for an upset here because San Diego is athletic and good defensively. We don’t see it, though, since Alabama ranks better in defensive metrics and certainly scores better than SDSU.
• #5 Miami +6.5 (-110) vs. #1 Houston -6.5 (-111) – The Hurricanes have the offense to keep pace with the Cougars, even if they don’t ultimately win. They’re shooting 54.1% from two-point range and 36.8% on threes so far in the tourney.
• #15 Princeton -9.5 (-109)vs. #6 Creighton +9.5 (-111) – Princeton played excellent defense against both Arizona and Missouri during wins. It has the defense to at least hang with the Bluejays and cover +9.5.

States Where You Can Legally Bet On March Madness Sweet 16 Matchups

March Madness betting is legal in over two dozen states throughout the US. You can legally place college basketball bets in the following states:

• Arizona
• Arkansas
• Colorado
• Connecticut
• Delaware
• Illinois
• Indiana
• Iowa
• Kansas
• Louisiana
• Maryland (recently legalized sports betting)
• Massachusetts (recently legalized)
• Michigan
• Mississippi
• Montana
• Nevada
• New Hampshire
• New Jersey
• New York
• Ohio (recently legalized)
• Oregon
• Pennsylvania
• Rhode Island
• South Dakota
• Tennessee
• Virginia
• Washington DC
• Washington
• West Virginia
• Wyoming

Why Sign Up with The Top Sportsbooks? 

The best March Madness betting sites share many of the same great qualities. First off, they have great reputations in terms of treating bettors fairly and paying on time. The top online sportsbooks are also legal and licensed wherever they operate.

These sportsbooks offer user-friendly apps and websites with helpful features too. Regarding the latter, you’ll find search functions, live streaming, and the cash out option at popular US betting sites. Finally, the best mobile sportsbooks provide large March Madness bonuses and other promotions.

The deals covered here aren’t the only bonuses available for March Madness. You can see the full spectrum of offers through our Gambling.com . 

Gambling problem? Call 1-800-GAMBLER (CO, DC, IL, IN, LA, MD, MS, NJ, OH, PA, TN, VA, WV, WY) Call 877-8-HOPENY or text HOPENY (467369) (NY). Must be 21+ to wager. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-270-7117 for confidential help (MI). Visit BetMGM.com for T&Cs. US promotional offers not available in NV, NY or ON.

FAQ

Our pick for the best 2023 March Madness bonus is Bet365’s Bet $1, Get $365. We like this deal so much because of the tiny $1 betting requirement. Other strong contenders include BetMGM (Bet $10, Get $200) and Caesars (up to $1,250).

The first step is to find a betting site and download its app. Next, you’ll need to complete registration and enter a March Madness bonus code (if necessary). The final step is to place a deposit and use your available funds to place bets.

The Alabama Crimson Tide currently have the best odds to win the 2023 March Madness tournament at +320. Houston (+420), UConn (+850), and UCLA (+950) are the next closest March Madness favorites.

Four arenas are hosting games for the Round of 16. These venues include Madison Square Garden (NYC), KFC Yum! Center (Louisville, KY), T-Mobile Arena (Las Vegas), and T-Mobile Center (Kansas City, MO).

No. 15 Princeton is by far the biggest Cinderella left in the 2023 March Madness field. The Tigers punched their ticket to the Sweet Sixteen by beating Arizona and Missouri. No. 9 Florida Atlantic is the next biggest Cinderella, having beaten Memphis and FDU to reach this round.