The Sweet 16 round of the 2023 March Madness college basketball betting tournament continues on Friday with four more games. 

It has been a fantastic tournament so far featuring a number of nail-biting endings to the games, and with the best March Madness betting promos we have for you, you can take the excitement of these games to a whole new level by betting on them.

Best March Madness Betting App Promos & Sign-Up Bonuses

Here are the four Sweet 16 games taking place on Friday:

• 5 San Diego State vs. 1 Alabama (-7.5, 137), 6:30 p.m. EST
• 5 Miami vs. 1 Houston (-7.5, 138), 7:15 p.m. EST
• 15 Princeton vs. 6 Creighton (-9.5, 139), 9 p.m. EST
• 3 Xavier vs. 2 Texas (4, 149.5), 9:45 p.m. EST

The top March Madness betting apps have promo codes and bonus offers that you’ll want to know about, and we’ll take you through all of them in our guide on March Madness bonus codes.

BetMGM Betting Promo

The BetMGM Sportsbook bonus code BOOKIESMARCH gives new customers $200 in bonus bets for betting $10 on any March Matchups. 

Win or lose, as long as you bet $10 on any pre-game March Matchups sports market, you’ll get $200 in bonus bets in the form of four $50 bonus bets. What an absolutely phenomenal deal!

BetMGM Betting Promo Terms & Conditions

1. Sign up for a new BetMGM Sportsbook account using the bonus code BOOKIESMARCH
2. Make your first deposit of $10 or more
3. Place your first wager on any March Matchups game via a pre-game moneyline for just $10 or more and get $200 in bonus bets win or lose
4. Your bonus bets come in the form of four $50 bonus bets
5. You then get seven days to use your bonus bets at BetMGM Sportsbook
6. Your bonus bets come with a 1x rollover

Caesars March Madness Betting Promo

The Caesars Sportsbook promo code BOOKIESFULL gives new users customers up to $1,250 for their first losing wager on any sport, including any March Madness game, plus you will get 1,000 in Tier Credits and 1,000 and Reward Credits. 

For those users in Ohio and Massachusetts, use the promo code BOOKIES1BET instead to get back up to $1,500 on Caesars Ohio.

For all customers, you can bet on some special college basketball odds boosts from Caesars Sportsbook. These odds boosts all come with a $100 maximum bet:

• Villanova, LSU, Iowa & Ole Miss All Win on 3/24 +625
• Miami (FL), Creighton & Texas All Win on 3/24 +625

Additionally, both new and existing users can opt-in and get a 50% CBB Parlay Token and use it on a parlay featuring 4+ legs of March Madness games at +400 or greater final odds (i.e. +425, +525). The maximum wager for this parlay token is $50, and your maximum additional winnings are $1,000.

Caesars March Madness Promo Terms & Conditions

1. Sign up for a new Caesars Sportsbook account and use the promo code BOOKIESFULL, or BOOKIES1BET if in Ohio or Massachusetts
2. Make your first deposit of $20 or more
3. Place your first wager on any sport, including any March Madness game, and get back up to $1,250 in the form of a single bet credit if it loses, or up to $1,500 if you are located in Ohio or Massachusetts
4. You get 14 days in order to use your bet credits
5. The bet credits come with a 1x rollover
6. You will also get 1,000 Tier Credits and 1,000 Reward Credits added to your account

DraftKings March Madness Promo

The DraftKings Sportsbook promo code $150 in bonus bets for making a winning $5 wager on any sport, including March Madness. 

Just make a $5 wager on any pre-game moneyline, and get back up to $150 in bonus bets if your first bet wins. Since you only have to bet $5 for this offer, we highly recommend taking advantage of it today! Here’s how:

DraftKings March Madness Promo Terms & Conditions

1. Sign up for a new DraftKings Sportsbook account
2. Make your first deposit of at least $5
3. Make a bet on any pre-game college basketball moneyline for $5 or more
4. If your first bet wins, get back $150 in bonus bets in the form of six $25 bonus bets
5. You get one week to use the bonus bets at DraftKings Sportsbook
6. Your bonus bets come with a 1x rollover

FanDuel March Madness Promo

The FanDuel Sportsbook promo code offers new users a No Sweat First Bet for up to $1,000. 

Place your first bet on any sport, including any March Madness game, and if your first bet loses, get back up to $1,000 in the form of bonus bets. It goes without saying that this is an incredible welcome offer!

On top of that, new customers can also take advantage of the Bracket Parlay Insurance offer from FanDuel Sportsbook, and you can do this once per day. Make a parlay featuring 3+ legs at +400 or greater final odds (i.e. +410, +510), and if exactly one leg loses, you will get back up to $25 in bonus bets each day.

FanDuel March Madness Promo Terms & Conditions

1. Sign up for a new FanDuel Sportsbook account
2. Make your first deposit of at least $10
3. Place your first bet on any sport and get back up to $1,000 in bonus bets if it loses
4. You get up to 14 days in order to use your bonus bets at FanDuel Sportsbook
5. The bonus bets come with a 1x rollover

Betway March Madness Betting Promo

The Betway Sportsbook promo code is a good one that you’re definitely going to want to know about. This gives new customers back up to $250 in bonus bets for making their first losing wager on any sport, including any March Madness game. Here’s how:

Betway March Madness Promo Terms & Conditions

1. Register for a new Betway Sportsbook account
2. Opt-in to the welcome promotion, and deposit at least $10
3. Make your first bet on any sport, including any March Madness game at -300 or greater odds (i.e. -150, +250)
4. If your first bet loses, get back up to $250 in bonus bets
5. You get up to seven days in order to use your bonus bets
6. The bonus bets come with a 1x rollover