Saturday night’s MLB slate is packed with excitement, featuring key matchups like the Blue Jays vs. Mets and Rays vs. Rangers. These games promise plenty of action, and with seven games left on the schedule, there’s no shortage of opportunities to place your bets. You can get in on the action with some of the best MLB betting promos from top sportsbooks.
Whether you're placing a wager on the Blue Jays vs. Mets game or taking a late-night position on the Guardians vs. Angels, these MLB betting promos provide fantastic value for new users who sign up and make their first bet. From moneyline bets to player props like total bases or strikeouts, these promotions offer extra value across a wide range of MLB markets.
These sign-up bonuses include bet-and-get offers, first-bet protection, and deposit matches—ideal for boosting your bankroll as the season heats up. Use these promos to bet confidently on your favorite teams or dive into advanced player props and alternate lines.
Sign up today with any of the MLB betting promos below and get started with Saturday night's MLB odds. Be sure to check out our expert picks, predictions, and player prop recommendations to fine-tune your strategy.
Review the chart below to find the best MLB betting promos, and continue reading for expert insights to help you grow your bankroll and make winning 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 5
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
Join the action by signing up with the bet365 bonus code TOPACTION and choose between two fantastic MLB betting promos: a bet $5, get $150 in bonus bets offer that pays out regardless of whether your bet wins or loses, or a $1,000 First Bet Safety Net that refunds your first wager in bonus bets if it doesn’t hit.
For users in Pennsylvania, the $150 bet-and-get promo comes with an added bonus. Pennsylvania bettors who sign up with the bet365 bonus code TOPACTION also receive 50 spins for bet365 Casino along with their bonus bets.
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
Fanatics Sportsbook offers multiple ways to get in on the action and help build your bankroll as you bet on MLB, especially with exciting Saturday night matchups like Blue Jays vs. Mets and Rays vs. Rangers. Sign up today with the Fanatics Sportsbook promo of your choice, and take advantage of the great offers listed below.
One of the top MLB betting promos from Fanatics Sportsbook is their $300 bonus bet offer, spread across your first three days on the platform.
How it works:
- Place a $10+ wager each day for three consecutive days
- Receive $100 in bonus bets after each wager settles
- That’s up to $300 in bonus bets to use on MLB markets, including moneylines, player props, and run totals
Looking for a little added security with your bets? Fanatics Sportsbook also offers up to $1,000 in No Sweat Bets, which refund your stake in bonus bets—up to $100 per day—if your wager loses. This promo runs for 10 consecutive days, offering you peace of mind as you get into MLB betting.
If you're in New York, Fanatics Sportsbook has a special treat for you: a 300% Profit Boost Token on your first MLB wager. 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 huge 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
If you're ready to wager on Saturday night's MLB action, BetMGM Sportsbook has three top-tier MLB betting promos to help you get started, allowing you to pick the one that best suits your bankroll. With exciting matchups like Blue Jays vs. Mets and Rays vs. Rangers, now’s the perfect time to jump in.
Start with as little as $10 by signing up with the BetMGM bonus code ACTIONGET. Place a $10+ first wager 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 promo 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 you need to deposit $7,500 to unlock the full bonus.
If you’re looking to start with a larger bet, the BetMGM first bet offer might be your best option. Sign up with BetMGM bonus code TOPACTION and receive up to $1,500 back in bonus bets if your first wager 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 your refund in the form of five equal bonus bet tokens, giving you multiple chances to bounce back 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 with Caesars Sportsbook promo code ACTION4BG1 tonight and place a $1 first bet to unlock $150 in bonus bets for Saturday’s MLB action. To qualify for the bonus, your first wager must win.
If your bet hits, Caesars Sportsbook credits your account with six $25 bonus bets, which you can use on any eligible market, including tonight’s exciting matchups like Blue Jays vs. Mets and Rays vs. Rangers.
For those looking to make the most of tonight’s slate, Caesars Sportsbook has a fantastic offer to help you double your winnings. 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 best MLB betting promos available.
Here’s how to unlock and use your Profit Boost Tokens for tonight’s games:
- Register with Caesars Sportsbook promo code ACTION4DYW
- Place a $1 first bet on any MLB market
- Instantly receive 10 Profit Boost Tokens
- Apply each token to bets up to $25 to double your profit on any win
These Profit Boost Tokens are ideal for any MLB bet, including moneylines, run lines, or player props. Remember, you must use all tokens within 14 days of activation.
Alternate MLB Betting Promos
While traditional sportsbooks offer great sign-up promos, platforms like Kalshi and Underdog provide exciting alternatives to engage with tonight’s MLB action, including matchups like Blue Jays vs. Mets and Rays vs. Rangers. Whether you’re trading game outcomes or building daily fantasy lineups, these options are a great complement to the top MLB betting promos available.
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 unique way to engage with MLB action by trading game outcomes instead of placing traditional bets. On a busy night like tonight, users can trade yes-or-no outcomes, creating a stock exchange-like experience.
How to claim your Kalshi bonus:
- Sign up using Kalshi promo code ACTION
- Make $100 worth of trades on any Kalshi market
- Receive a $10 bonus to continue trading and exploring
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 win big as you build your lineup for tonight’s games, such as Blue Jays vs. Mets and Rays vs. Rangers.
MLB Starting Pitchers & Predictions — Saturday, April 5
Saturday night's slate is packed with big bats and aces on the mound. Each matchup presents multiple angles to use the MLB betting promos highlighted above. Let's dive into our predictions for two marquee matchups tonight.
Tampa Bay Rays vs. Texas Rangers
- Time/Location: 7:05 p.m. ET at Globe Life Field (Arlington, TX )
- Starting Pitchers: Taj Bradley (Tampa Bay Rays) vs. Jacob deGrom (Texas Rangers)
- Prediction: Rangers -1.5 (+125)
The Tampa Bay Rays have been inconsistent through their first seven games, and I’m not confident they’ll find any rhythm against a pitcher like Jacob deGrom. Despite battling injuries over the years, the CY Young winner looked sharp in his season debut, and I see no reason to doubt him here.
When deGrom is at his best, he’s one of the top pitchers in the league and capable of dominating any lineup. The Texas Rangers have given up just two runs over their last three games, so it’s only fitting that deGrom continues the trend of dominance. I’m backing the Rangers on Saturday night and laying the run line to ease the price.
Toronto Blue Jays vs. New York Mets
- Time/Location: 7:10 p.m. ET at Citi Field (Flushing, Queens, NY)
- Starting Pitchers: Chris Bassitt (Toronto Blue Jays) vs. Griffin Canning (New York Mets)
- Prediction: Blue Jays ML +110
I’m taking the Toronto Blue Jays in this matchup. I’m not high on Griffin Canning, and I don’t think he brings much to the New York Mets in this game. Toronto has a distinct advantage in the starting pitching department with Chris Bassitt, who’s had great success against his former team. After a lackluster performance on Friday, I expect the Blue Jays’ offense to bounce back. I’m backing Toronto to level the series on the road.