The St. Louis Cardinals take on the Boston Red Sox at Fenway Park tonight at 7:10 p.m. ET on ESPN, and you can claim the best MLB betting promos to bet on the matchup. Register for a new account at some of the top sportsbooks in the industry to take advantage of deposit match bonuses, bet-and-get offers, and more.
You can find the top Cardinals vs. Red Sox MLB betting promos at leading sports betting apps, including bet365, Fanatics Sportsbook, BetMGM, and Caesars Sportsbook. See the chart below for more information regarding the top MLB betting promos, including the promo code and sign-up link for each offer:
| Best MLB Sportsbooks | MLB Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get | TOPACTION |
| Fanatics Sportsbook | $1,000 in No Sweat Bets or $300 Bet-and-Get | Click Here |
| BetMGM | Bet $10, Get $150 in Bonus Bets if You Win | ACTIONGET |
| Caesars Sportsbook | Bet $1, Get $150 in Bonus Bets If You Win | ACTION4BG1 |
MLB Betting Promos: Top Sportsbook Promos for Cardinals vs. Red Sox Today
Let's take a look at the best MLB betting promos to claim now to place bets on Cardinals vs. Red Sox on ESPN.
bet365
| bet365 Promo | States Available | bet365 Bonus Code |
|---|---|---|
| $150 Bet-and-Get | AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, VA | TOPACTION |
| $1,000 First Bet Safety Net | AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, VA | TOPACTION |
| $150 Bet-and-Get + 50 Casino Spins | PA | TOPACTION |
When you sign up with the bet365 bonus code TOPACTION now, you get a choice between a $150 bet-and-get and a $1,000 First Bet Safety Net offer. If you register for a new account in Pennsylvania, you receive the $150 bet-and-get and 50 spins at bet365 Casino.
Bet-and-Get: Place a $5+ first bet, and get $150 in bonus bets win or lose.
First Bet Safety Net: Place your first bet, and if it loses, get back up to $1,000 in bonus bets to cover it. If the bet wins, you get the profit and your initial stake back.
Pennsylvania Offer: Place a $5+ first bet and get $150 in bonus bets plus 50 spins, win or lose.
Fanatics Sportsbook
| Fanatics Sportsbook Promo | States Available | Sign-Up Link |
|---|---|---|
| Bet and Get up to $1,000 in No Sweat Bets | AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY | Click Here |
| Bet $30, Get $300 in Bonus Bets | AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA, WV | Click Here |
| Sign Up and Get a 300% Profit Boost Token | NY | Click Here |
Claim one of three Cardinals vs. Red Sox MLB betting promos now at Fanatics Sportsbook. The Fanatics Sportsbook promo available in most states provides 10 days of No Sweat Bets for up to $1,000 in bonus bets available to cover your daily losses. Alternatively, claim a three-day $300 bet-and-get promo. If you register in New York, you get a 300% Profit Boost Token.
$1,000 in No Sweat Bets: Opt-in daily and place a qualifying bet at -500 odds or longer. Get back up to $100 in bonus bets to cover the loss. This offer provides 10 separate $100 No Sweat Bet opportunities.
$300 Bet-and-Get: Place a $10+ qualifying wager and get $100 in bonus bets, win or lose, on each of your first three days after registration. You must opt-in daily to maintain eligibility for the promo.
New York Exclusive Offer: Sign up for a new account and get a 300% Profit Boost Token.
BetMGM
| BetMGM Promo | States Available | BetMGM Bonus Code |
|---|---|---|
| $150 Bet-and-Get | CO, MI, NJ, PA, WV | ACTIONGET |
| $1,500 Deposit Match Offer | AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY | TOPTAN1500 |
| $1,500 First Bet Promo | AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY | TOPACTION |
Sign up for a new account and grab one of three BetMGM bonus code offers. Each of these Cardinals vs. Red Sox MLB betting promos at BetMGM are structured differently, with a $150 bet-and-get, $1,500 deposit match, and $1,500 first bet promo available to choose between.
$150 Bet-and-Get: Place a $10+ first bet and get $150 in bonus bets if the bet wins with BetMGM bonus code ACTIONGET.
$1,500 Deposit Match Offer: Sign up and get a 20% deposit match of up to $1,500 in sports bonus with BetMGM bonus code TOPTAN1500. This offer has a 10x rollover requirement that you must meet within 30 days to withdraw any winnings.
$1,500 First Bet Offer: Place your first bet, and if it loses, get back up to $1,500 in bonus bets to cover the loss with BetMGM bonus code TOPACTION. Your bonus is distributed in five equal increments and expires seven days after receipt.
Caesars Sportsbook
| Caesars Sportsbook Sign-Up Bonus | States Available | Caesars Sportsbook Promo Code |
|---|---|---|
| Bet $1+, Get 10 100% Profit Boost Tokens | AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY | ACTION4DYW |
| Bet $1, Get $150 in Bonus Bets If You Win | AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, WY | ACTION4BG1 |
Register now and claim one of the two best MLB betting promos at Caesars Sportsbook. Use the Caesars Sportsbook promo code to bet $1+ and either get 10 100% Profit Boost Tokens or $150 in bonus bets.
Profit Boost Tokens: Place a $1+ first bet, get 10 100% Profit Boost Tokens. Each Profit Boost Token can be applied to wagers of $25 or less and expires seven days after receipt.
Bet-and-Get: Place a $1+ first bet and get $150 in bonus bets if the bet wins.
Alternative to Best Cardinals vs. Red Sox MLB Betting Promos: Kalshi
| Kalshi Sign-Up Bonus | States Available | Kalshi Promo Code |
|---|---|---|
| Trade on Sports & Politics – Get a $10 Bonus with Our Code | AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NH, NM, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC | ACTION |
If online sports betting is not legal in your state yet, there is an outstanding alternative option to the best Cardinals vs. Red Sox MLB betting promos. Kalshi is a prediction market where you can buy and sell shares of event outcomes across sports, including tonight's ESPN game. Register with Kalshi promo code ACTION for a $10 bonus when you complete $100 in total trades.