BetMGM Bonus Code SI1500 Unlocks Welcome Offer for Monday's NBA, NCAAB and World Baseball Classic Action

New users can claim a generous welcome offer with BetMGM bonus code SI1500 for Monday's exciting slate featuring NBA playoff races, college basketball conference tournaments, and World Baseball Classic competition. The $1,500 first bet protection requires the promo code SI1500 and provides excellent value for betting on March 9 games.
BetMGM stands out among sportsbook promos with this substantial welcome bonus available through March 9.
How the BetMGM bonus code SI1500 offer works for Monday's games
The BetMGM bonus code SI1500 delivers two different welcome offers depending on your state. Most eligible states receive first bet protection up to $1,500, while Michigan, New Jersey, Pennsylvania, and West Virginia users get $150 in bonus bets when their first $10 wager wins.
For the $1,500 first bet protection offer, new users must register with promo code SI1500 and make a minimum $10 deposit. Your first real money wager on any market qualifies for protection. If you bet $500 on an NBA game and lose, BetMGM returns your stake as bonus bets. Wagers over $50 receive five separate bonus bets worth 20% each of your original stake, while smaller bets receive one bonus bet equal to your wager amount.
Key terms include:
• Bonus bets expire after seven days from issuance.
• You must use bonus bets before withdrawing any potential winnings.
• BetMGM does not return your stake when using bonus bets.
• The offer applies to any sport or betting market.
For example, if you wager $1,000 on a World Baseball Classic game and it loses, you receive five $200 bonus bets totaling $1,000. If you bet $300 on college basketball and win, you keep your winnings plus the original stake with no bonus bets awarded.
This BetMGM promotion is available to first-time users in the following states: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MS, NC, NJ, OH, PA, TN, VA, WV, WY. It is not available in NV, NY, or Ontario, Canada.
Steps to claim your BetMGM Sportsbook promo code for Monday's action
Claiming your welcome bonus for Monday's NBA, college basketball, and World Baseball Classic games requires four simple steps. Follow this process to maximize your betting potential on March 9 games.
- Register your new BetMGM Sportsbook account using bonus code SI1500 during the sign-up process.
- Complete identity verification by providing your driver's license and personal information including name, address, and email.
- Make your initial deposit of at least $10 using any accepted payment method.
- Place your first real money wager on any available market, including Monday's NBA games, college basketball tournaments, or World Baseball Classic matchups.
Your welcome bonus activates immediately after your first bet settles. Winning bets provide standard payouts, while losing bets trigger the bonus bet protection. Read our comprehensive BetMGM review for additional insights into the sportsbook's features and betting options.
Additional BetMGM promotions beyond the welcome offer
BetMGM consistently provides ongoing promotions for existing customers beyond the initial welcome bonus. The sportsbook regularly features odds boosts, parlay bonuses, and sport-specific promotions that enhance your betting experience throughout the season.
Current users can access these additional offers by navigating to the 'Promos' section within the BetMGM Sportsbook mobile app. These rotating promotions often include enhanced payouts for specific bet types, cashback opportunities, and special bonuses tied to major sporting events like March Madness and playoff races.
- Welcome to MGM Rewards: Earn MGM Rewards Points and redeem them for hotel stays, dining, entertainment, and other exclusive perks.
BetMGM has two separate welcome offers, each restricted to specific states. The $1,500 First Bet promotion is available to new customers in AZ, CO, IL, IN, IA, KS, KY, LA, MD, MA, MI, MO, MS, NC, NV, NJ, NY, OH, PA, TN, VA, WV, WY, as well as DC and PR. By using bonus code COVERS and depositing at least $10, players can place their first wager and receive bonus bets back—up to $1,500—if it loses. In contrast, the Bet $10, Get $150 offer is limited to MI, NJ, PA, and WV. With bonus code COVERSBONUS, new users who deposit $10 and place a $10 bet will earn $150 in bonus bets if that wager wins. Both deals are state-specific and only available to new registrants in eligible markets.
Odds refresh periodically and are subject to change. If you or someone you know has a gambling problem and wants help, call 1-800-GAMBLER.

Geoff is an analyst in the sports betting industry who has over a decade of experience creating content. As a former online poker player who used to multi-table 20+ tournaments at the height of the poker boom, he’s been an active gambler for the majority of his adult life and has always strived to be a +EV sports bettor. His foray into sports saw him develop a deep love for betting on the NFL and golf, where he continues to tilt the same group of PGA players every Sunday. As a writer, he loves providing actionable pieces of content, and his goal is to always search for an original or under-appreciated piece of information that gives his readers an edge. Geoff has a B.A. in English, an After Education Degree, and a Juris Doctor in Law from the University of Alberta. He’s had his work published by larger betting sites like DraftKings and been featured as a betting analyst and daily fantasy writer by some of the largest networks and sporting leagues in the world. His knowledge of betting and industry experience allows him to create reliable and original betting content and sportsbook reviews that readers can not only trust but also rely on when choosing which site to deploy their bankrolls. In his spare time, Geoff enjoys running with his English Springer Spaniel Pepper and staying up late to watch European golf.