March Madness Betting Promos: Top Sportsbook Promos for NCAA Tournament Games

Fans of college basketball who haven't yet signed up with March Madness betting promos are in luck. Action Network has up to $7,770 in sportsbook promos for NCAA Tournament games up for grabs. Sports betting apps like Fanatics Sportsbook, BetMGM, and DraftKings all provide new players ways to get in on the action.

Sign up through the modules below to make accounts on the best sportsbook promos in North America. All these March Madness betting promos are verified and legitimate, and great choices to claim to fund your Round of 32 predictions today, Sunday, March 22, 2026.

March Madness Betting Promos: Claim Top Sportsbook Promos for NCAA Tournament

Click on any of the links below to create accounts with the top March Madness betting promos in North America.

Round of 32 March Madness Schedule Tonight

Once you redeem the March Madness betting promos, from the table in the section above, wager on any Round of 32 game today. This schedule reflects games that have yet to tip as of publishing time:

• 12:10 p.m. – No. 7 Miami vs. No. 2 Purdue (CBS)
• 2:45 p.m. – No. 7 Kentucky vs. No. 12 Iowa State (CBS)
• 5:15 p.m. – No. 5 St. John's vs. No. 4 Kansas (CBS)
• 6:10 p.m. – No. 6 Tennessee vs. No. 3 Virginia (TNT)
• 7:10 p.m. – No. 9 Iowa vs. No. 1 Florida (TBS)
• 7:50 p.m. – No. 9 Utah State vs. No. 1 Arizona (truTV)
• 8:45 p.m. – No. 7 UCLA vs. No. 2 UConn (TNT)
• 9:45 p.m. – No. 5 Texas Tech vs. No. 4 Alabama (TBS)

What Are the Best March Madness Betting Promos?

Redeem the top sportsbook promos for NCAA Tournament games below to wager on the Round of 32 today.

1. Fanatics Sportsbook

Unlock one of a half dozen March Madness betting promos when you sign up with the Fanatics Sportsbook promo code ACTION. Be careful to pay attention to to minimum odds requirements attached to your respective offer to ensure you claim FanCash.

• Fanatics Sportsbook Promo Code ACTION (Bet $5, Get $200 in FanCash Instantly)
  • Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, MO, NJ, OH, PA, VA, VT, WV, WY

• Fanatics Sportsbook Promo Code ACTION ($1,000 Bet Match Over 10 Days)
  • Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, OH, PA, TN, VA, VT, WV, WY

• Fanatics Sportsbook Promo Code ACTION (Bet $5, Get $400 in FanCash)
  • Fanatics Sportsbook States Available: NC, TN

• Fanatics Sportsbook NY Promo Code ACTIONNY ($250 No Sweat Bets Over 10 Days)
  • Fanatics Sportsbook States Available: New York

• Fanatics Sportsbook NY Promo Code ACTIONNY (Daily 100% Profit Boost Token Over Five Days)
  • Fanatics Sportsbook States Available: Illinois & New York

2. BetMGM Sportsbook

Register next with the the BetMGM bonus code below attached to one of the three March Madness betting promos. Your options are to attempt to win $150 in bonus bets, get a $1,500 first bet offer, or have 20% of your first deposit matched, up to $1,500.

• BetMGM Bonus Code ACTIONGET (Bet $10, Get $150 in Bonus Bets If You Win)
  • BetMGM States Available: MI, NJ, PA, WV

• BetMGM Bonus Code TOPACTION ($1,500 First Bet On the House)
  • BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY

• BetMGM Bonus Code TOPTAN1500 (20% Deposit Match, Up to $1,500 Sports Bonus Funds)
  • BetMGM States Available: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, MO, NJ, NC, PA, TN, WV, WY

3. DraftKings Sportsbook

One of the most popular March Madness betting promos you won't want to miss out on is the DraftKings promo code from Action Network. Attempt to win $200 in bonus bets today.

• DraftKings Promo Code (Bet $5, Get $200 in Bonus Bets If You Win)
  • DraftKings States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

4. FanDuel Sportsbook

None of the March Madness betting promos in this article have your back as much as the FanDuel promo code. New users receive up to $300 back in bonus bets whenever your first bet loses each of the first days from when you sign up. Note the recently launched FanDuel Arkansas promo code as well and the $300 bet-and-get offer that comes with it.

• FanDuel Promo Code (Get $300 Back in Bonus Bets Every Day For 10 Days)
  • FanDuel States Available: AZ, CO, CT, DC, IA,, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

• FanDuel Promo Code (Bet and Get Up to $1,000 in Bonus Bets)
  • FanDuel States Available: IN, VA

• FanDuel Arkansas Promo Code (Bet $5, Get $300 Instantly in Bonus Bets)
  • FanDuel States Available: Arkansas

5. bet365 Sportsbook

Another choice in March Madness betting promos is through the bet365 bonus codeTOPACTION. Tap on one of the links below to register your account and wager on -500 odds or longer in the Round of 32 today.

• bet365 Bonus Code TOPACTION (Bet $5, Get $365 in Bonus Bets, Win or Lose)
  • bet365 States Available: AZ, CO, IA, IL, IN, KS, KY, LA, MD, MO, NC, NJ, OH, PA, TN, VA

• bet365 Bonus Code TOPACTION ($1,000 First Bet Safety Net)
  • bet365 States Available: AZ, CO, IA, IL, IN, KS, KY, LA, NC, OH, TN, VA

• bet365 PA Bonus Code TOPACTION (Bet $5, Get $365 in Bonus Bets, Win or Lose+ 50 Casino Spins)
  • bet365 States Available: Pennsylvania, New Jersey

• bet365 IL Bonus Code TOPACTION (Bet $10, Get $150 in Bonus Bets, Win or Lose)
  • bet365 States Available: Illinois

6. Hard Rock Bet

Sign up next with the Hard Rock Bet promo code to receive a unique offer in Michigan and New Jerseys. This is one of the best March Madness betting promos in the state, which is 10 100% Profit Boost Tokens.

• Hard Rock Bet Promo Code (10 100% Profit Boost Tokens)
  • Hard Rock Bet States Available: Michigan & New Jersey

7. Caesars Sportsbook

Another one of the premiere March Madness betting promos is the Caesars Sportsbook promo code ACTION4DYW. This sign-up bonus unlocks 10 100% Profit Boost Tokens to double your potential winnings with.

• Caesars Sportsbook Promo Code ACTION4DYW (Bet $1, Get Double Your Winnings on Next 10 Wagers)
  • Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MO, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY

8. theScore Bet

Finally, no collection of March Madness betting promos is complete without theScore Bet promo code ACTNEWS. Sign up in most available states with a $1,000 first bet offer, or a $100 bet-and-get promo in MI, NJ, PA, and WV.

• theScore Bet Promo Code ACTNEWS ($1,000 First Bet Reset)
  • theScore Bet States Available: AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, MO, NC, OH, TN, VA

• theScore Bet Promo Code ACTNEWS (Bet $10, Get $100 in Bonus Bets If You Win)
  • theScore Bet States Available: MI, NJ, PA, WV

Make March Madness Predictions on Kalshi and Underdog Today

If the March Madness betting promos above aren't available in your state, Kalshi and Underdog are two of the best alternatives. Kalshi is a predictions market app, while Underdog is a DFS service. Both allow you to predict the NCAA Tournament and provide new player bonuses.

1. Kalshi

Unlock $10 in bonus cash with the Kalshi promo code ACTION once you trade $10 on any prediction matket.

• Kalshi Promo Code ACTION (Trade $10, Get a $10 Bonus)
  • Kalshi States Available: AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NY, NC, NV, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC

2. Underdog (DFS)

Play $5 after you register with the Underdog promo code TOPACTION to claim $50 in fantasy bonus entries, which fund your future DFS picks.

• Underdog Promo Code TOPACTION ($50 Fantasy Bonus Entries): Play $5 on CBB picks to unlock $50 in fantasy bonus entries.
  • Underdog States Available: AL, AK, AR, CA, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, WY