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Use BetMGM Bonus Code SIBONUS For a $1,500 First Bet on Week 4 NFL and the MLB Postseason
Week 4 NFL action kicks off Thursday, Oct. 1, and new bettors can claim valuable sportsbook promos this week. Use the BetMGM bonus code "SI1500" to unlock up to $1,500 in bonus bets when you place your first wager on any Week 4 matchup. A code is required to claim this offer.
Gambling problem? Call 1-800-GAMBLER or 1-800-MY-RESET (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA), 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR) 21+ only. Please Gamble Responsibly. See Sports Betting | Legal Online Sportsbook at BetMGM | BetMGM for Terms. 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, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
How the BetMGM bonus code works for Week 4 NFL
The BetMGM bonus code "SI1500" gives new customers a straightforward welcome offer for Week 4 NFL betting. Place your first real money wager on any game this week, including Thursday's Steelers vs. Browns matchup or any other Week 4 contest. If your bet loses, BetMGM returns your entire stake as bonus bets, up to $1,500.
Here's how the bonus bets break down:
- If you wager more than $50, you receive five bonus bets, each worth 20 percent of your qualifying wager.
- If you wager $50 or less, you receive one bonus bet.
- For example, if you wagered $1,500 on the Steelers vs. Browns and lost, you would receive five $300 bonus bets totaling $1,500.
- Bonus bets expire seven days after issuance.
- Win or lose, you also earn $50 in MGM Rewards Points.
MGM Rewards Points can be redeemed for bonus credits for digital play at BetMGM, MGM Rewards Points, Marriott Bonvoy Points, merchandise, or Gametime Vouchers. Learn more about the program at https://www.nj.betmgm.com/en/p/betmgmrewards.
You must make a minimum $10 deposit to qualify for this offer. The bonus bets you receive cannot be withdrawn as cash, but you must use them before accessing any potential payout. When you use a bonus bet, BetMGM does not return your stake.
This BetMGM promotion is available to first-time users in the following states: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MD, MI, MS, NC, NJ, OH, PA, TN, VA, WV, WY. It is not available in NV, NY, or Ontario, Canada.
Claiming your BetMGM Sportsbook promo code for Week 4 NFL
Follow these steps to sign up and place your first bet on Week 4 NFL action:
- Register a new account at BetMGM Sportsbook and enter the BetMGM promo code "SI1500" during signup.
- Provide your personal information, including name, address, email, and driver's license for identity verification.
- Deposit at least $10 into your account.
- Place your first real money wager on any Week 4 NFL game.
- If your bet loses, you'll receive your stake back as bonus bets within 24 hours.
- Use your bonus bets on any available market before withdrawing winnings.
For a complete overview of BetMGM's features and offerings, check out our BetMGM review.
Explore additional BetMGM Sportsbook promotions
BetMGM regularly rolls out bonuses and boosts for existing customers throughout the season. You can find these ongoing promotions by navigating to the Promos section within the BetMGM Sportsbook app. These offers change frequently, so checking the app regularly helps you maximize your betting value on Week 4 NFL games and beyond.
- Welcome to MGM Rewards: Earn MGM Rewards Points and redeem them for hotel stays, dining, entertainment, and other exclusive perks.
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.
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Geoff is a prediction markets specialist with over a decade of experience creating content. His work has been published by major brands throughout the industry, and he has been featured as a betting analyst and daily fantasy writer for several networks and sporting leagues. A former online poker player who multi-tabled 20+ tournaments at the height of the poker boom, he’s been active in betting and trading sports for most of his adult life and has always approached them with a +EV mindset. Today, his favorite markets to trade include NFL player props, specifically milestones and alternate-line props on platforms like Kalshi and Polymarket, for his favorite undervalued receivers and running backs. He also continues to tilt the same group of PGA players every Sunday. As a writer, Geoff focuses on actionable content and finding original or underappreciated information that can give readers an edge. He has a B.A. in English, an After Education Degree, and a Juris Doctor in Law from the University of Alberta, and his industry experience allows him to create reliable, original content on sports betting, prediction markets, and trading platforms that readers can use when deciding where and how to deploy their bankrolls. In his spare time, Geoff enjoys running with his English Springer Spaniel Pepper and staying up late to watch F1 and European golf.