Monday’s MLB slate is filled with marquee matchups like the Rangers vs. Cubs at 7:40 p.m. ET and the Orioles vs. Diamondbacks at 9:40 p.m. ET. With a full schedule on tap, there’s no shortage of angles for bettors to dive into. Take advantage of the best MLB betting promos from top sportsbooks to boost your bets on tonight’s games.
Whether you're backing the Rangers on the road game against the Cubs or placing a wager on the Orioles vs. Diamondbacks after dark, these MLB betting promos provide excellent value for new users who sign up and place their first bets. From moneyline bets to player props like total bases or strikeouts, these offers enhance your betting experience across a variety of MLB markets.
These sign-up bonuses include bet-and-get offers, first-bet protection, and deposit matches—ideal for building your bankroll as the season progresses. Use these promotions to place confident bets on your favorite teams or explore more advanced player props and alternate lines.
Sign up today with any of the MLB betting promos below and get started with Monday’s MLB odds. Be sure to check out our expert picks and predictions, as well as MLB player prop picks, to fine-tune your strategy.
Browse the chart below to find the best MLB betting promos, and continue reading for expert insights to help you grow your bankroll and make successful bets all season long.
| Top MLB Sportsbooks | MLB Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $150 Bet-and-Get or $1,000 First Bet Safety Net | TOPACTION |
| Fanatics Sportsbook | $300 Bet-and-Get Promo or $1,000 in No Sweat Bets | 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, Predictions, and Starting Pitchers for April 7
1. bet365
- bet365 Bonus Code: TOPACTION
- bet365 Promo: $1,000 First Bet Safety Net or Bet $5, Get $150 in Bonus Bets, Win or Lose
- bet365 PA Promo: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins, Win or Lose
- bet365 States Available: AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, PA, TN, VA
Get in on the action tonight with the bet365 bonus code TOPACTION, and choose between two excellent MLB betting promos for Monday's slate, featuring games like Rangers vs. Cubs at 7:40 p.m. ET and Orioles vs. Diamondbacks at 9:40 p.m. ET.
Sign up and place a $5 wager to unlock $150 in bonus bets, win or lose. Alternatively, you can choose the $1,000 First Bet Safety Net, which provides a refund in bonus bets if your first wager doesn’t win.
Pennsylvania users get an added bonus. When signing up with the bet365 bonus code TOPACTION, PA bettors receive the $150 bet-and-get offer, along with 50 spins for bet365 Casino.
2. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Click Here
- Fanatics Sportsbook Bet-and-Get Promo: Bet $30, Get $300 in Bonus Bets
- Fanatics Sportsbook Sign-Up Bonus: $1,000 in No Sweat Bets
- Fanatics Sportsbook NY Sign-Up Bonus: 300% Profit Boost Token
- Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, NJ, OH, PA, TN, VA, VT, WV, WY
Sign up today with the Fanatics Sportsbook promo and take your pick from the tremendous offers available for Monday’s MLB action.
One of the best MLB betting promos from Fanatics Sportsbook is their $300 bonus bet offer, which is spread across your first three days on the platform.
Here’s how the Bet & Get offer works:
- Place a $10+ wager each day for three consecutive days
- Receive $100 in bonus bets after each bet settles
- That adds up to $300 in bonus bets to use on MLB markets, including moneylines, player props, and run totals
If you’re looking for added security with your bets, Fanatics Sportsbook also offers up to $1,000 in No Sweat Bets. This promo refunds your stake in bonus bets—up to $100 per day—if your wager loses. With 10 consecutive days of coverage, you can bet confidently on MLB action.
For New York bettors, Fanatics Sportsbook has an exclusive 300% Profit Boost Token. Here’s how it works:
- Sign up and place a wager of up to $50 on any MLB game
- If your bet wins, your profit is tripled, giving you a big payout boost
3. BetMGM
- BetMGM Bonus Code: ACTIONGET
- BetMGM Promo: Bet $10, Get $150 in Bonus Bets if You Win
- BetMGM Bonus Code: TOPTAN1500
- BetMGM Promo: 20% First Deposit Match, Up to $1,500 in Sports Bonus
- BetMGM Bonus Code: TOPACTION
- BetMGM Promo: $1,500 First Bet Offer
- BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY
BetMGM Sportsbook is rolling out three MLB betting promos to help you get started on Monday's action, featuring games like Rangers vs. Cubs at 7:40 p.m. ET and Orioles vs. Diamondbacks at 9:40 p.m. ET. With these exciting matchups, it's the perfect time to place your bets.
You can start with just $10 by signing up with the BetMGM bonus code ACTIONGET. Place a $10+ first bet on any MLB market, and if your bet wins, you receive $150 in bonus bets. This is one of the best offers available for new users in CO, MI, NJ, PA, and WV.
For those looking to boost their bonus funds, use the BetMGM bonus code TOPTAN1500. This offer gives you a 20% deposit match up to $1,500 in bonus funds, available in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY. Any deposit of $10 or more qualifies, but to unlock the full bonus, you need to deposit $7,500.
If you’re interested in making a larger first bet, the BetMGM first bet offer might be the right choice for you. Sign up with the BetMGM bonus code TOPACTION and get up to $1,500 back in bonus bets if your first bet doesn’t win.
This promo is available in AZ, DC, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, and WY. If your bet loses, you receive a refund in the form of five equal bonus bet tokens, giving you multiple chances to recover and win.
4. Caesars Sportsbook
- Caesars Sportsbook Promo Code: ACTION4BG1
- Caesars Sportsbook Welcome Offer: Bet $1, Get $150 in Bonus Bets if You Win
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Welcome Offer: Bet $1, Get 10 100% Profit Boost Tokens
- Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
Sign up tonight with Caesars Sportsbook promo code ACTION4BG1 and place a $1 first bet to unlock $150 in bonus bets for Monday's MLB action, making it amongst the best MLB betting promos for those starting with a minimal deposit. With exciting games like Rangers vs. Cubs at 7:40 p.m. ET and Orioles vs. Diamondbacks at 9:40 p.m. ET, this is the perfect opportunity to make your first wager. To qualify, your first bet must be successful.
If your bet hits, Caesars Sportsbook credits your account with six $25 bonus bets, which can be used on any eligible market.
For those looking to maximize their earnings from Monday’s matchups, Caesars Sportsbook has an incredible offer to help you double your profits. New users who sign up with Caesars Sportsbook promo code ACTION4DYW can place a $1 first bet and instantly receive 10 Profit Boost Tokens—one of the top MLB betting promos available.
Here’s how to claim and use your Profit Boost Tokens for Monday’s games:
- Register with Caesars Sportsbook promo code ACTION4DYW
- Place a $1 first bet on any MLB market
- Instantly receive 10 Profit Boost Tokens
- Use each token to place bets up to $25 to double your profit on any win
These Profit Boost Tokens are perfect for any MLB bet, including moneylines, run lines, or player props. Just remember that you must use all tokens within 14 days of activation.
MLB Betting Promos: Alternate Options
While traditional sportsbooks offer fantastic sign-up promos, platforms like Kalshi and Underdog provide unique ways to engage with Monday’s MLB action. Whether you’re trading game outcomes or creating daily fantasy lineups, these platforms offer fresh opportunities to build your MLB betting bankroll alongside top MLB betting promos.
1. Kalshi Predictive Market
- Kalshi Promo Code: ACTION
- Kalshi Welcome Offer: Make $100 in Trades, Get $10 Sign-Up Bonus
- Kalshi States Available: 46 States + Washington D.C. (Not available in Illinois, New Jersey, Nevada, and Ohio)
Kalshi offers a new twist on traditional MLB betting by allowing users to trade long-term outcomes. Instead of placing standard bets, you can trade yes-or-no outcomes on various events, providing a dynamic, market-like experience that feels similar to stock trading. This platform gives a fun and engaging way to interact with Monday’s MLB action.
How to claim your Kalshi bonus:
- Register using Kalshi promo code ACTION
- Complete $100 worth of trades on any Kalshi market
- Receive a $10 bonus to continue exploring and trading
2. Underdog (DFS)
- Underdog Promo Code: TOPACTION
- Underdog Sign-Up Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog States Available: AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, WY
Sign up with Underdog promo code TOPACTION to get a 50% match on your first deposit—up to $1,000. This bonus gives you more chances to build winning daily fantasy lineups for Monday's MLB games, including Rangers vs. Cubs and Orioles vs. Diamondbacks.
MLB Starting Pitchers & Predictions — Sunday, April 6
Monday's MLB slate is loaded with top teams and the stars in their lineups as a majority of the league begins a new series tonight. While there are 10 games on tap for tonight, we have predictions for two of the must-see matchups, and the best part is that you can use those predictions to score big on the MLB betting promos above.
Texas Rangers vs. Chicago Cubs
- Time/Location: 7:40 p.m. ET at Wrigley Field (Chicago, IL )
- Starting Pitchers: Nathan Eovaldi (Texas Rangers) vs. Justin Steele (Chicago Cubs)
- Prediction: Over 6 -105
The Texas Rangers have won six of the last ten meetings, including three of the last four. Nathan Eovaldi delivered an impressive performance in his previous outing, but I don’t expect him to pitch another shutout here.
Justin Steele has had a rough start to the season, and despite facing one of the weaker offenses in MLB, I foresee him allowing three or four runs. With a low total set for this game, I’m leaning toward the Over. In fact, seven of the last ten head-to-head matchups went Over, and eight of the Chicago Cubs' last ten games also hit the Over.
Baltimore Orioles vs. Arizona Diamondbacks
- Time/Location: 9:40 p.m. ET at Chase Field (Phoneix, AZ)
- Starting Pitchers: Zach Eflin (Baltimore Orioles) vs. Zac Gallen (Arizona Diamondbacks)
- Prediction: Diamondbacks ML -125
The Baltimore Orioles have won six of the last ten matchups, including four of the most recent five. However, Zach Eflin has struggled historically against the Diamondbacks, allowing a .312 batting average with four home runs and 13 RBI over 80 at-bats.
On the other hand, Zac Gallen has been strong against the Orioles, limiting them to a .158 batting average and just two RBI in 64 at-bats. With the edge going to Gallen and the home team, I’m backing the Arizona Diamondbacks to secure the win.