Eight more tickets to the Sweet 16 are set to be punched today as the second day of the Round of 32 is here. That means there's still plenty of time to grab nearly $4,000 in March Madness betting promos before another loaded slate of college hoops tips off. Marquee matchups like UConn vs. Florida (12:10 p.m. ET) and Baylor vs. Duke (2:40 p.m. ET) headline today's action, making this the perfect moment to claim exclusive welcome offers.
This is one of the most intense stretches of the tournament as teams battle for a spot in the Sweet 16. Today, you can back powerhouses like Duke, Alabama, or Michigan State. These March Madness betting promos offer everything from bonus bets and deposit matches to first-bet insurance, giving your bankroll a major boost.
After you’ve claimed your promo, be sure to check the latest NCAAB odds and make college basketball picks for today’s matchups or even March Madness futures as the field shrinks. Futures betting is a great way to lock in value before the lines adjust heading into the next round.
Check out the chart below to find the March Madness betting promos that best match your college basketball betting strategy:
| March Madness Betting Apps | Best March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get | TOPACTION |
| Caesars Sportsbook | Bet & Get $150 in Bonus Bets or Get 10 100% Profit Boost Tokens | ACTION4BG1 |
| BetMGM | Bet $10, Get $150 in Bonus Bets if You Win or $1,600 Deposit Match | ACTIONGET |
| Fanatics Sportsbook | $1,000 in No Sweat Bets or Bet $30, Get $300 in Bonus Bets | CLICK HERE |
| Underdog Fantasy | Get Up to $1,000 Bonus Cash From First Deposit | TOPACTION |
College Basketball March Madness Betting Promos
1. bet365
- bet365 Bonus Code: TOPACTION
- bet365 Promos: $1,000 First Bet Safety Net or Bet $5, Get $150 in Bonus Bets Win or Lose
- bet365 PA Promo: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins, Win or Lose
- bet365 States Available: AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, PA, TN, VA
With 16 more teams in action today, bet365 Sportsbook is your starting point to claim one of the top March Madness betting promos on the market. New users in AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, and VA can choose between a $1,000 First Bet Safety Net or a $150 bet-and-get bonus. Just sign up with the bet365 bonus code TOPACTION to claim one of these limited-time offers ahead of today’s NCAA Tournament matchups.
If you opt for the First Bet Safety Net, place a qualifying wager at -500 odds or longer. If your bet loses, you receive your entire stake back in bonus bets—up to $1,000.
For instance, you can place a $1,000 first bet on UConn + 9.5 (-110) against Flordia, and if they cover, you win $1,909. If they fail to cover, bet365 Sportsbook refunds your full stake in bonus bets to use on future wagers.
Also, bet365 offers one of the best March Madness betting promos where you can get started with just $5. Sign up with the bet365 bonus code TOPACTION and bet just $5 on any eligible market to get $150 in bonus bets—win or lose. In Pennsylvania, this promo also includes 50 spins for bet365 Casino as an additional perk.
2. Caesars Sportsbook
- Caesars Sportsbook Promo Code: ACTION4BG1
- Caesars Sportsbook Welcome Offer: Bet $1, Get $150 in Bonus Bets if You Win
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Welcome Offer: Bet $1, Get 10 100% Profit Boost Tokens
- Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
As the round of 32 continues today, Caesars Sportsbook provides two unique March Madness betting promos to help new users boost their bankroll. You can choose between a $150 bet-and-get bonus or 10 Profit Boost Tokens—perfect for maximizing value during today’s NCAA Tournament action and the Sweet 16 next week.
Sign up with Caesars Sportsbook promo code ACTION4BG1 and place a $1 first bet to unlock $150 in bonus bets. To secure the bonus bets, your initial wager must win.
If it does, Caesars Sportsbook credits your account with six $25 bonus bets, which can be used on any eligible market—including today's Round of 32 matchups like Illinois vs. Kentucky or Colorado State vs. Maryland. Bonus bets expire after 30 days, so use them while the tournament is heating up.
Doubling your winnings is something every bettor envisions, and you can do just that when you sign up with the Caesars Sportsbook promo code ACTION4DYW to receive 10 Profit Boost Tokens after placing just a $1 first bet.
Here’s how to secure Profit Boost Tokens and use them today:
- Place a $1 first wager
- Instantly receive 10 Profit Boost Tokens
- Use them on bets up to $25 across various sports
- Double your profits on any winning bet
Profit Boost Tokens expire 14 days after they are credited to your account.
These boosts are a great way to add value to today’s March Madness bets—as well as your plays in the NBA, NHL, MLB, and more.
3. BetMGM
- BetMGM Bonus Code: ACTIONGET
- BetMGM Promo: Bet $10, Get $150 in Bonus Bets if You Win
- BetMGM Bonus Code: TOPTAN1600
- BetMGM Promo: 20% First Deposit Match, Up to $1,600 in Sports Bonus
- BetMGM Bonus Code: TOPACTION
- BetMGM Promo: $1,500 First Bet Offer
- BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY
BetMGM Sportsbook has become the place to bet on the NCAA Tournament, as they have three March Madness betting promos to help new users secure plenty of bonus value for the NCAA Tournament. Whether you’re after bonus bets, a deposit match, or a first bet offer, there’s a BetMGM bonus code for you.
Bet $10, Win $150 in Bonus Bets (Available in CO, MI, NJ, PA, and WV)
Register with BetMGM bonus code ACTIONGET, place a $10+ bet on any market, and if it wins, you receive $150 in bonus bets. Just remember—your first wager must win to unlock the bonus.
20% Deposit Match Up to $1,600 (Available in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY)
Get started with BetMGM bonus code TOPTAN1600 to get a 20% deposit match up to $1,600. To unlock the full amount, deposit $8,000 or more—but any deposit of $10+ qualifies for bonus funds.
First Bet Safety Net – Up to $1,500 in Bonus Bets (Available in AZ, DC, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, and WY)
For those looking to make a large first bet, sign up with BetMGM bonus code TOPACTION, and if your first wager loses, you get your stake back in bonus bets up to $1,500, divided into five equal parts.
4. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Activate Here
- Fanatics Sportsbook Bet-and-Get Promo: Bet $30, Get $300 in Bonus Bets
- Fanatics Sportsbook Sign-Up Bonus: $1,000 in No Sweat Bets
- Fanatics Sportsbook NY Sign-Up Bonus: 300% Profit Boost Token
- Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, NJ, OH, PA, TN, VA, VT, WV, WY
Fanatics Sportsbook is also featuring a choice of three March Madness betting promos for the second day of the Round of 32, giving new users the flexibility to pick the Fanatics Sportsbook promo that fits their style and location. Whether you're eyeing a bet-and-get offer, No Sweat Bets, or a 300% Profit Boost, there’s a Fanatics Sportsbook promo that gives you a great start when betting on the NCAA Tournament.
$300 Bet-and-Get Bonus (Available in AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, WV)
This offer is a fan favorite as it gives you $300 in bonus bets over three days:
- Place a $10+ bet each day for three consecutive days
- Receive $100 in bonus bets after each day, totaling $300
Up to $1,000 in No Sweat Bets (Available in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY)
Fanatics Sportsbook has got you covered with 10 days of No Sweat Bets. If your bet loses, you get up to $100 back in bonus bets each day—up to $1,000 total—so you can keep betting even if your best bet doesn't cash.
300% Profit Boost Token (New York Exclusive)
Bettors in New York can triple their payout on today’s March Madness action with a 300% Profit Boost Token:
- Bet up to $50 on any eligible college basketball market
- If your bet wins, Fanatics Sportsbook triples your profit, giving you exponential value on a single wager
Alternate College Basketball March Madness Betting Promos
With the number of games in the NCAA Tournament dwindling, you don’t need to stick to traditional sportsbooks to get in on the action. Kalshi and Underdog Fantasy are offering unique, rewarding ways to engage with March Madness. Whether you're into predictive markets or building DFS lineups with top college basketball talent.
1. Kalshi Predictive Market
- Kalshi Promo Code: ACTION
- Kalshi Welcome Offer: Make $100 in Trades, Get $10 Sign-Up Bonus
- Kalshi States Available: All 50 States + Washington D.C.
Kalshi gives you a new way to experience March Madness by letting you trade on outcomes instead of placing standard bets. This futures-style platform lets you speculate on everything from tournament results to economic and political events.
How to Claim Your Kalshi Bonus:
- Sign up using the Kalshi promo code ACTION
- Make $100 in trades across any market
- Receive a $10 bonus to continue trading and exploring
2. Underdog Fantasy (DFS)
- Underdog Fantasy Promo Code: TOPACTION
- Underdog Fantasy Sign-Up Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog Fantasy States Available: AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, WY
Get your start in Daily Fantasy Sports with the Underdog Fantasy promo code TOPACTION to receive a 50% deposit match bonus up to $1,000. Build DFS lineups featuring top players from today’s Round of 32 matchups.
Whether you're entering a March Madness DFS contest or trying out a new pick'em lineup strategy, this bonus gives you extra flexibility and more chances to win big.