The Round of 32 concludes today for March Madness, but it's not too late to join the betting action. Sign up for BetMGM Sportsbook to access a $1,500 first bet on the house or a $1,600 deposit match.

The BetMGM bonus code TOPACTION allows you to earn up to $1.5K in bonus bets. Bet up to $1,500 on any sporting event and earn your bet back in bonus bets if it loses. BetMGM doesn't provide a bonus bet if your first bet wins.

The $1,600 deposit match is available with the BetMGM bonus code TOPTAN1600. It's a 20% deposit match, so you'll receive a percentage of your initial deposit back in bonus bets. For example, if you deposit $1,000, you'll have $200 in bonus bets. This offer also features a 10x rollover requirement, which must be met within 30 days to withdraw.

North Carolina users have an exclusive welcome offer at BetMGM. They must use the BetMGM NC bonus code TOPACTION and wager $5 on any market. Once complete, they'll earn $150 in bonus bets. BetMGM provides the bonus in increments of $25.

The bonus bets are available for seven days. You don't have to use them today or on a particular sporting event. Keep reading to view a bonus bet example for today's March Madness slate.

Colorado and Marquette kick off Sunday's CBB slate with a Round of 32 matchup. Colorado advanced out of the First Four with a late comeback against Boise State. Then, they played a thriller against Florida, ending with a 102-100 victory. The Buffalos are in the Round of 32 for the first time since 2012.

Marquette entered the NCAA Tournament with injury concerns. Last year's Big East Player of the Year, Tyler Kolek, returned from an oblique injury to record a double-double and lead Marquette to an 18-point win.

The win margin seems like a blowout, but they struggled with Western Kentucky. Marquette trailed by seven at halftime, and it was a one-possession game midway through the second half. Ultimately, the Golden Eagles did enough on both ends to score the victory.

BetMGM Sportsbook has Marquette as a 3.5-point favorite over Colorado. The Golden Eagles didn't impress me a ton, despite the blowout victory over Western Kentucky. Meanwhile, Colorado has shown that it can win in different ways.

Their First Four matchup featured a late comeback in a low-scoring game. Then, it was an absolute shootout against Florida, ending with a game-winner by KJ Simpson. Nothing fazes this Colorado team; they have what it takes to knock off No. 2 Marquette.

Let's say you want to use one of your $25 bonus bets on this game. A wager on the Colorado ML (+140) yields $35 in winnings. The $25 stake goes away no matter the outcome.

1. Click here聽and select your state. Click聽"Register"聽in the top right corner to begin registration.

2. Enter your details to create a new account

3. Accept the Terms & Conditions, set security questions, and confirm your age and eligibility.

4. Make an initial deposit using online banking, PayPal, a credit card, or another funding option.

5. You will get your first deposit matched 20% to unlock up to $1,600 in Sports Bonus with the BetMGM bonus code after successfully navigating the BetMGM login process.

Must be 21+ and present in North Carolina. Full T&C apply. Gambling problem? Call 877-718-5543 or visit morethanagame.nc.gov