BetMGM Bonus Code SI1500: Bet on NBA, World Baseball Classic, and Players Championship Action

New bettors can claim a generous welcome offer with BetMGM bonus code SI1500 when wagering on Thursday's exciting sports lineup. The $1,500 first bet offer provides bonus bets back if your initial wager loses, making it perfect for betting on NBA games, World Baseball Classic matchups, or Players Championship golf action. BetMGM requires the bonus code SI1500 to unlock this March 12 promotion, and bettors can explore various sportsbook promos across multiple sports.
How the BetMGM bonus code SI1500 offer works for NBA and WBC betting
The BetMGM bonus code SI1500 delivers substantial value for new users across most states. First-time customers must enter the promo code during registration and make a minimum $10 deposit to qualify. After placing your initial real money wager on any market, including NBA games or World Baseball Classic pool play, you'll receive bonus bets equal to your stake if the bet loses.
The offer structure varies by location, with most states receiving the $1,500 first bet protection. However, users in Michigan, New Jersey, Pennsylvania, and West Virginia can opt for a different promotion: bet $10 and receive $150 in bonus bets if your first wager wins. This alternative provides guaranteed bonus bets for successful initial wagers on events like the Players Championship or NBA contests.
Key terms and conditions include:
- Bonus bets expire seven days after issuance.
- Wagers over $50 receive five separate bonus bets worth 20% each of the original stake.
- Wagers under $50 receive one bonus bet equal to the original stake.
- Bonus bet stakes are not returned with winnings.
For example, if you wager $500 on an NBA playoff contender to win their next game and lose, you'd receive five $100 bonus bets totaling your original $500 stake. Alternatively, betting $25 on a World Baseball Classic team to advance would result in one $25 bonus bet if unsuccessful.
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 Thursday's games
Claiming your welcome bonus for NBA, World Baseball Classic, or Players Championship betting requires completing several straightforward steps.
- Register a new BetMGM Sportsbook account using bonus code SI1500 during the sign-up process.
- Verify your identity by providing required documentation like a driver's license.
- Make your initial deposit of at least $10 using any accepted payment method.
- Place your first real money wager on any available market, including NBA games, WBC matchups, or golf futures.
- Receive bonus bets if your initial wager loses, or collect your winnings plus any applicable bonus bets.
New users should read our comprehensive BetMGM review to understand all platform features before placing their first bet.
Additional BetMGM Sportsbook promotions beyond the welcome offer
BetMGM consistently provides ongoing promotions for existing customers beyond the initial welcome bonus. The sportsbook regularly features profit boosts, parlay insurance offers, and sport-specific promotions that enhance betting value throughout major sporting events. Current users can access these rotating promotions by navigating to the 'Promos' section within the BetMGM Sportsbook mobile app.
These ongoing offers frequently target popular betting markets like NBA player props, World Baseball Classic tournament futures, and PGA Tour event specials. BetMGM updates its promotional offerings regularly, ensuring customers have access to enhanced odds and bonus opportunities across various sports and betting markets throughout the year.
- 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.