Wager on the NBA tonight or Sweet 16 in March Madness with a $1,500 first bet offer provided by our Action Network BetMGM bonus code TOPACTION. Place your first bet on any sports betting market and wait for it to settle. BetMGM issues you bonus bets back equal to your stake when you lose, up to $1,500. You keep your stake and profits when your first bet wins.
Tap the module above to unlock this $1,500 BetMGM promo in AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY. Act now to bet on the Spurs vs. Heat at 7 p.m. ET on Peacock in the NBA, or any college basketball matchup in the NCAA Tournament.
BetMGM Bonus Code TOPACTION Overview
Use our BetMGM bonus code TOPACTION to sign up and activate a $1,500 first bet on the house today, Monday, March 23, 2026. This is a generous and simple welcome bonus promotion for new and experienced bettors alike to comprehend:
- Place any first bet on the NBA, college basketball, or any sport
- Win your first bet to keep your stake and win additional profits
- When your first bet loses, you receive up to $1,500 back in bonus bets
Bonus bets get distributed in one of two ways depending on the amount you wager. Get one bonus bet back when your losing first bet is less than $50. Or receive five bonus bets equal to 20% of your stake when your losing first bet is $50+. Use your bonuses within seven days before they expire.
Make Spurs vs. Heat Prediction or March Madness Prediction Today
Read our Action Network Sweet 16 betting primer from Evan Abrams to get up to speed before Thursday, when March Madness returns. Another option you have is to bet on the NBA tonight, highlighted by the Spurs vs. Heat.
| Spurs Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-4.5 -118 | 239.5 -115o / -105u | -210 |
| Heat Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+4.5 -102 | 239.5 -115o / -105u | +170 |
Our NBA betting expert Matt Moore included a Spurs vs. Heat prediction of Heat +5 (-110) in his NBA picks and predictions for March 23. Here is the reasoning for this pick, which can be tailed after you capitalize on the BetMGM bonus code TOPACTION:
"The Heat are 7-2 ATS this season as home 'dogs, while the Spurs are 10-11 as road favorites. The market has been a little ahead of where the Spurs are at this season in this spot, and Miami continues to be masters at finding ways to make bad spots competitive with Erik Spoelstra."
Consider Alternative BetMGM Bonus Codes
Our verified BetMGM bonus code TOPACTION is the promotion I recommend to new players. However, two separate sign-up bonuses are also available to claim instead. Click one of the links or modules below to claim a $150 bet-and-get offer or 20% deposit match promo.
| BetMGM Promo | States Available | BetMGM Bonus Code |
|---|---|---|
| Bet $10, Get $150 in Bonus Bets if You Win | MI, NJ, PA, WV | ACTIONGET |
| Get a 20% First Deposit Match Up to $1,500 in Sports Bonus | AZ, CO, DC, IA, IN, KS, KY, MA, MD, MI, MO, NC, NJ, PA, TN, WV, WY | TOPTAN1500 |
How to Sign Up With BetMGM Sportsbook
BetMGM offers new user bonuses for sports betting, so take a few minutes out of your day to register with the BetMGM bonus code to get in on the action:
- Tap the following TOPACTION code to sign up with a $1,500 first bet offer. Use ACTIONGET and win your $10 first bet to unlock $150 in bonus bets. Hit the TOPTAN1500 code to get a 20% deposit match.
- Select your legal online sports betting state and tap "Register" in the top right corner.
- Type in your personal identifying information, like your date of birth,, home address, name, email address, phone number, and last four digits of your SSN. Make a user ID and password in this same step.
- Agree to the BetMGM Sportsbook terms & conditions, make your security questions, and confirm your age and eligibility.
- Use any available banking method to make a $10+ first deposit.
- Submit your first bet on a Spurs vs. Heat prediction, March Madness prediction, or any sport via the BetMGM app or site.
Expert tip: Do you want to make sure you're maximizing every dollar you wager at BetMGM Sportsbook? Enter your bet slip into our Action Network betting odds calculator and parlay calculator to preview your potential payouts and parlay odds.
Pick a Twin to Win Highlights BetMGM Promotions for Returning Customers
A share of $2 million in BetMGM bonus bets are up for grabs. Haley and Hanna Cavinder go one-on-one at "The Club" in Las Vegas, NV on April 5, 2026. Opt-in to this promotion and pick the twin you think wins this matchup, and win a share of the bonus if your pick is correct.
Additional BetMGM promotions returning players have access to on March 23 include:
- 25% Any Sport Parlay Boost Token
- Score Up to a $50 Bonus Bet Daily
- Refer a Friend to Get $100 for Sports or Casino
Terms & Conditions
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. Offer available in MI, NJ, PA, WV. Please Gamble Responsibly. Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. AZ, CO, DC, IA, IN, KS, KY, MA, MD, MI, MO, NC, NJ, PA, TN, WV, WY. Call 877-8-HOPENY or text HOPENY (467369) (NY). Call 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-BETS-OFF (IA). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
21+. Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET. AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY. Call 877-8-HOPENY or text HOPENY (467369) (NY). Call 1-800-327-5050 (MA), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-522-4700 (KS, NV), 1-800-BETS-OFF (IA). First Bet Offer for new customers only (if applicable). Subject to eligibility requirements. Bonus bets are non-withdrawable. In partnership with Kansas Crossing Casino and Hotel. This promotional offer is not available in DC, MS, NY, NV, ON, or PR. Visit BetMGM.com for Terms & Conditions.
