Claim the best MLB betting promos today at top online sportsbooks to bet on any game, including Mets vs. Marlins at 6:40 p.m. ET and Braves vs. Dodgers at 10:10 p.m. ET. You can find the top MLB betting promos at betting apps like bet365, Fanatics Sportsbook, BetMGM, and Caesars Sportsbook now. Collectively, claim up to $3,600 in sign-up bonuses when you register for a new account at each site.
Take a look at the chart below for more information about the best MLB betting promos for Monday, March 31:
| 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 10 100% Profit Boost Tokens | ACTION4DYW |
MLB Betting Promos: Claim $3,600 in Sportsbook Promos Monday
Let's take a look at the best MLB betting promos today that you can use to bet on Monday, March 31 games.
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 |
Create a new sportsbook account with the bet365 bonus code TOPACTION in most states to get a choice between two MLB betting promos.
Your first option is a bet-and-get that requires a $5+ first bet in exchange for $150 in bonus bets win or lose. Alternatively, select a $1,000 First Bet Safety Net where you get back up to $1,000 in bonus bets if your first bet results in a loss.
For example, let's say I pick the bet-and-get and place a $5 first bet on the Mets -1.5 (-110) vs. the Marlins:
- If the bet wins, I receive $4.54 in profit, my $5 stake back, and $150 in bonus bets.
- If the bet loses, I receive $150 in bonus bets.
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 Fanatics Sportsbook promo offers when you register for a new account today. Each of the MLB betting promos available at Fanatics Sportsbook require qualifying wagers of -500 minimum odds.
In most states, choose either a $1,000 No Sweat Bets offer or a $300 bet-and-get promo. The No Sweat Bets offer provides 10 days of No Sweat Bets, each up to $100 in bonus bets if you lose your bet. The bet-and-get provides three days of bet $10, get $100 in bonus bets offers.
If you register in New York, you get a 300% Profit Boost Token.
BetMGM
| BetMGM Promo | States Available | BetMGM Bonus Code |
|---|---|---|
| $150 Bet-and-Get | CO, MI, NJ, PA, WV | ACTIONGET |
| $1,600 Deposit Match Offer | AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY | TOPTAN1600 |
| $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 with one of three BetMGM bonus code offers today, depending on your location. If you register with the BetMGM bonus code ACTIONGET in one of the five states above, you receive a $150 bet-and-get. Place a $10+ first bet, and if it wins, you get $150 in bonus bets.
Use the BetMGM bonus code TOPTAN1600 to secure a 20% deposit match of up to $1,600 in sports bonus. This promo has a 10x rollover requirement that must be met within 30 days to withdraw any winnings.
Lastly, if you register with the BetMGM bonus code TOPACTION, you receive a $1,500 first bet offer. Simply place your first bet, and if it loses, get back up to $1,500 in bonus bets to cover it.
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 |
Sign up with the Caesars Sportsbook promo code ACTION4DYW to claim one of the most unique MLB betting promos today. Place an initial wager of $1 or more after you create a new account and you receive 10 100% Profit Boost Tokens.
Alternative to 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, OH, 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 excellent alternative option with Kalshi. Kalshi is a sports trading platform that operates like a stock market and does not provide a sports betting service.
Sign up with the Kalshi promo code ACTION and get a $10 bonus when you make $100 in total trades on your new account.
MLB Probable Pitchers — Monday, March 31
Sign up and claim the top MLB betting promos today to place bets on the pitching matchups and games below:
- Mets vs. Marlins, 6:40 p.m. ET: David Peterson vs. Cal Quantrill
- Rangers vs. Reds, 6:40 p.m. ET: Kumar Rocker vs. Brady Singer
- Pirates vs. Rays, 7:05 p.m. ET: Carmen Mlodzinski vs. Drew Rasmussen
- Nationals vs. Blue Jays, 7:07 p.m. ET: Michael Soroka vs. Bowden Francis
- Angels vs. Cardinals, 7:45 p.m. ET: Tyler Anderson vs. Miles Mikolas
- Giants vs. Astros, 8:10 p.m. ET: Jordan Hicks vs. Ronel Blanco
- Tigers vs. Mariners, 9:40 p.m. ET: Jackson Jobe vs. Emerson Hancock
- Guardians vs. Padres, 9:40 p.m. ET: Luis L. Ortiz vs. Kyle Hart
- Cubs vs. Athletics, 10:05 p.m. ET: Ben Brown vs. Joey Estes
- Braves vs. Dodgers, 10:10 p.m. ET: Grant Holmes vs. Tyler Glasnow