Smash Your Thursday MLB Bets With BetMGM Bonus Code WSNSPORTS

The MLB season is rolling right along, and Thursday, May 21, 2026, brings a loaded slate of afternoon and evening baseball games. If you want to get in on the action, sports bettors can get a great offer by signing up with the BetMGM bonus code WSNSPORTS.

Whether you want to back a home team or look at a total, using the BetMGM bonus code WSNSPORTS gives you an extra cushion for your first wager. This article breaks down exactly how the promotion works, how you can claim it today, and the top baseball matchups on the schedule.

Use BetMGM Promo Code WSNSPORTS and Get Up to $1,500 in Bonus Bets

BetMGM has two distinct welcome promotions running depending on your location. For most sports bettors across the country, entering the BetMGM bonus code WSNSPORTS unlocks a first-bet offer worth up to $1,500. This means if your very first bet loses, you will get that exact amount back in the form of bonus bets to try again.

If you live in a state with BetMGM Casino access (like Michigan, New Jersey, Pennsylvania, or West Virginia), you can choose a different version of the deal. By using the BetMGM bonus code WSNSPORTS in those states, you can get a $1,500 first-bet offer plus an added casino bonus pack, usually consisting of $25 in house casino credits.

Here are the details you need to know for the main sportsbook promotion:

BetMGM Sportsbook Offer Details

How to Claim BetMGM Bonus Code Offers

Getting your hands on this offer is simple and takes just a few minutes. Follow these quick steps to get started before the first pitch today:

1. Click to visit the BetMGM Sportsbook website or download the official app on your mobile device.

2. Hit the "Register" button to create a new account.

3. Fill out your details like your name, email, address, and the last four digits of your SSN to confirm your identity.

4. When prompted, type in the BetMGM bonus code WSNSPORTS to lock in your promotion.

5. Make your very first deposit of at least $10.

6. Place your first cash wager on any MLB game this Thursday, May 21, 2026.

If that first wager wins, you keep your cash profit. If it falls short, BetMGM will credit your account with bonus bets equal to your stake, up to $1,500.

Read our BetMGM Sportsbook review to get more info.

Best Sports Matchups for Your BetMGM Bonus Code This Thursday, May 21, 2026

We have a great mix of early afternoon business specials and night games on Thursday, May 21, 2026. Here is a quick look at the latest consensus betting lines available at BetMGM Sportsbook for today's top games.

MLB Thursday Slate Odds

Please note that odds are subject to change.

Cleveland Guardians vs. Detroit Tigers (1:10 PM EDT)

An American League Central battle kicks off the afternoon in Detroit. The Guardians have been strong on the road all season, but the Tigers always play tough division rivals tight at Comerica Park. This looks like a classic pitching duel, making the under on runs an interesting look for your BetMGM bonus code WSNSPORTS wager.

Place Your Bet on Guardians vs. Tigers

Pittsburgh Pirates vs. St. Louis Cardinals (1:15 PM EDT)

The Cardinals look to defend their home turf at Busch Stadium against a gritty Pirates squad. St. Louis comes into this one as the slight home favorite on the moneyline. Pittsburgh has shown flash on offense lately, so expect a competitive battle in the NL Central.

Place Your Bet on Pirates vs. Cardinals

New York Mets vs. Washington Nationals (4:05 PM EDT)

The Mets travel to the nation's capital for a late afternoon game. New York is favored on the road, but the Nationals have a knack for keeping games close late. If you want to use your BetMGM bonus code WSNSPORTS, looking at the Nationals on the +1.5 run line could offer some value.

Place Your Bet on Mets vs. Nationals

Toronto Blue Jays vs. New York Yankees (7:05 PM EDT)

The biggest game of the night takes place in the Bronx. The Yankees are heavy home favorites against their AL East rivals. Yankee Stadium should be rocking, and New York's power bats make them a popular pick on the moneyline, though division games are rarely walkovers.

Place Your Bet on Blue Jays vs. Yankees