BetMGM Bonus Code ROTOBONUS: $1500 Promo for Celtics-Mavericks Game 4 Odds

This could be the final night of the NBA season, so use the BetMGM bonus code ROTOBONUS on the Finals Game 4 matchup between the Boston Celtics and Dallas Mavericks and get up to $1,500 in bonus bets on a losing wager.

When using one of the most lucrative sports betting promos in the business, you'll still get rewarded if your first bet doesn't hit the mark. Just place that first bet, and if it doesn't win, you'll get up to $1,500 in bonus bets from BetMGM.

Friday night, the Celtics will look to lock down their 18th NBA Championship. Of course, Luka Doncic and Kyrie Irving won't go quietly into the night after making a comeback effort in Game 3, but Jayson Tatum and Jaylen Brown want to end this series and get their first ring. According to the NBA odds at BetMGM, the Celtics are 1.5-point favorites, but even if you're not betting on the spread, there are still plenty of NBA betting markets to take advantage of.

BetMGM Bonus Code ROTOBONUS $1500 Offer Sign Up Info

New customers, who are at least 21 years old and located in a state where BetMGM operates legally, can sign up for a new account with the BetMGM bonus code ROTOBONUS by following these steps at one of the most iconic sports betting sites:

1. Click on the "BET NOW" below to begin the process of signing up for a new account.
2. You will be redirected to the BetMGM new-user registration page where you will need to enter some basic personal information like your name, email address, physical address, and phone number. You will also need to verify your identity, so provide your DOB and the last four digits of your SSN to complete the process.
3. Enter the BetMGM bonus code ROTOBONUS.
4. Make your first-time minimum qualifying deposit of at least $10 at BetMGM using one of the many payment methods like credit cards, debit cards, or online wallets like PayPal and Venmo.
5. After creating and funding your account, go ahead and place your first bet at BetMGM.

BetMGM Sportsbook Promo Terms & Conditions

Before placing your first bet on one of the top sports betting apps, be sure to review the terms and conditions for the BetMGM bonus code ROTOBONUS. 

If your bet wins, you'll hold on to the earnings as you would on a regular bet. However, if your first bet loses, you'll get up to $1,500 in bonus bets as compensation. For those who place a $49 or less first-time losing wager, you will receive a bonus bet in the amount of your first wager. However, if you place a $50 or more first-time wager that loses, you will receive five equal bonus bets that total up to the amount of your first-time losing wager. 

Let's say you take advantage of the maximum $1,500 welcome offer, your first-time losing wager would get you back five separate $300 bonus bets. The entirety of your bonus bets must be used within seven days or they will expire with the BetMGM bonus code ROTOBONUS,

Wager on Celtics-Mavericks Odds with BetMGM Bonus Code ROTOBONUS

We're ready to tip it off Friday night, and there's never been a better time to claim $1,500 in bonus bets with the BetMGM bonus code ROTOBONUS for Celtics-Mavericks NBA Finals Game 4.

With so many options on the board, be check out the NBA player props section. After all, this could be the last night of the season – leave it all out on the floor with BetMGM.

This article is part of our Betting Promotions series.