Best MLB Sportsbook Promo Codes And Bonuses

Written By Giovanni Shorter | Last Updated at November 14, 2025
MLB betting promo codes

Bettors can find the best MLB betting promo codes and bonuses throughout the season here. The top-rated MLB sportsbooks are listed below. Join any of the best sports betting sites today and win big betting on MLB.

Earn over $1000 in bonus bets at DraftKings Sportsbook or up to Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win at BetMGM. Click PLAY NOW on the banner below and get ready for MLB betting.

Rank
Sportsbook
Bonus
Features
Play
1
BetMGM Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
Play Now
Gambling problem? Call 1-800-GAMBLER (Available in the US) Call 877-8-HOPENY or text HOPENY (467369) (NY) Call 1-800-327-5050 (MA) 21+ only. Please Gamble Responsibly. Call 1-800-NEXT-STEP (AZ), 1-800-BETS-OFF (IA), 1-800-981-0023 (PR). Rewards are non-withdrawable bonus bets that expire in 7 days. In partnership with Kansas Crossing Casino and Hotel. See BetMGM.com for Terms. US promotional offers not available in DC, Mississippi, New York, Nevada, Ontario, or Puerto Rico.
2
Bet365 Bet $5 & Get $200 in bonus bets
Play Now
Minimum $10 deposit required. Minimum odds -500 of greater. Bonus Bets wager excluded from returns. New customers only. T&CS, time limits and exclusions apply. This Referral Code is used for marketing/tracking purposes only. $10 minimum deposit. Paid in Bonus Bets. Bonus Bets wager excluded from returns. New customers only. Available in app only. Max. prize, game restrictions, time limits and T&Cs apply. GAMBLING PROBLEM? CALL OR TEXT 1-800-GAMBLER (AZ/CO/IL/IN/KS/KY/LA/MD/NC/NJ/OH/PA/TN/VA) or 1-800-BETS OFF (IA). 21+ (18+ KY). Must be present in AZ/CO/IA/IL/IN/KS/KY/LA (select parishes)/MD/NC/NJ/OH/PA/TN/VA.
3
Caesars Bet $1, Double your Winnings on your Next 20 Wagers. Up to $25 Max Bet Per Boost
Play Now
21+ New users only. Must register using eligible promo code. First bet after registration must qualify. Max. Bonus Bet: $1,000. Bonus Bet expires 14 days after receipt. Void where prohibited. See Caesars.com/promos for full terms. Gambling Problem? 1-800-GAMBLER (1-800-426-2537)
4
Hard Rock Bet Bet $5 & Get $150 in Bonus Bets If You Win
Play Now
The promotion is available for all new players on Hard Rock Bet. An initial deposit is required, and the players first cash bet must be at least $5 to qualify. Additionally, the qualifying wager must win to receive the $150 in Bonus Bets. To be eligible, the Player must be at least 21 years old, physically located in a Eligible Jurisdiction: AZ, IL, IN, NJ, OH, TN, or VA, and not on any exclusionary lists in any Eligible Jurisdiction. Excluded patrons are prohibited from participating in Promotions. To be eligible all personal and contact data associated to your account must be verifiable. | T&C apply | Gambling Problem? Call 1-800-GAMBLER
5
FanDuel Bet $5 Get $150 in Bonus Bets If Your Bet Wins!
Play Now
Gambling Problem? Call 1-800-GAMBLER or visit RG Help . Call 1-888-789-7777 or visit Helpline and Chat - CONNECTICUT COUNCIL (CT). Hope is here. Home or call (800) 327-5050 for 24/7 support (MA). Visit Home (MD). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY). 21+ (18+ D.C.) and present in select states (for KS, in affiliation with Kansas Star Casino). First online real money wager only. $5 first deposit required. Bonus issued as nonwithdrawable bonus bets which expire 7 days after receipt. See terms at FanDuel Sportsbook
6
DraftKings New Customers: Bet $5+ Get $300 in Bonus Bets If Your Bet Wins + 3 Months of League Pass On Us!
Play Now
T&Cs apply, 21+
7
Fanatics Bet $50, Get $250 in FanCash
Play Now
New customers in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TV, VA, VT, WV, WY. Must opt-in and wager $10+ cash on any market with odds of -500 or longer to receive $50 in FanCash each day for your first 5 days (issued when qualifying wager settles). Your 5 days begin the day you establish your account. See full Promo Terms and FanCash terms in the Fanatics Sportsbook app.

Best MLB Promo Codes

These are the best MLB promo codes for today's games. Use the promo codes below to get bonuses.

MLB Betting SiteOffer DetailsPromo Code
Caesars Sportsbook Promo Code Bet $1, Double Your Winnings on Next 10 Wagers


TLCSPO20X
BetMGM Sportsbook Promo CodeWelcome Bonus up to Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win

FanDuel Sportsbook Promo Code Bet $5, Get Bet $5 Get $150 in Bonus Bets If Your Bet Wins! in Bonus Bets If Your Bet Wins
No promo code needed- Use Links
Fanatics Sportsbook Promo Code Bet and Get up to Game Day Guarantee: Every Game Day, Get Up To $100 Back In FanCash If Your Football Bet Loses in No Sweat Bets (most states)

OR

Receive a 300% Profit Boost Token to use on a wager of $50 max (NY only)
No promo code needed- Use Links
DraftKings Sportsbook Promo Code Up to $1000 BonusNo promo code needed- Use Links
BetRivers Sportsbook Promo Code welcome bonus
Bet365 Sportsbook Promo Code Claim Your Bonus!

Top MLB Sportsbook Promo Codes And Bonuses Expertly Ranked

Here at TheLines, our staff has ranked the top MLB betting promos and bonus offers for readers. These sportsbook promos have been expertly ranked based on both the amount of bonus bets new users can claim as well as the overall quality of the offer.

  1. BetMGM Sportsbook: Welcome Bonus up to Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
  2. DraftKings Sportsbook: Get Up To $1000 in bonuses
  3. Bet365 Sportsbook: Claim Your Bonus!
  4. Fanatics Sportsbook: Bet and Get up to Game Day Guarantee: Every Game Day, Get Up To $100 Back In FanCash If Your Football Bet Loses in No Sweat Bets (most states) OR Receive a 300% Profit Boost Token to use on a wager of $50 max (NY only)
  5. BetRivers Sportsbook: Up to bonus
  6. FanDuel Sportsbook: Bet $5, Get Bet $5 Get $150 in Bonus Bets If Your Bet Wins! in bonus bets if your bet wins
  7. Caesars Sportsbook: Bet $1, Double Your Winnings on Next 10 Wagers welcome bonus

Best Baseball Betting Promos And MLB Bonuses

MLB betting fans can join the top-rated online sportsbooks for promos and bonuses. These operators offer both new and existing customers bonuses, as well as odds boosts every day throughout the MLB season.

1. BetMGM MLB Promos

BetMGM is hosting its own promo for MLB bettors. Those who join BetMGM today can get a welcome bonus up to Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win. Bonus bets at BetMGM expire after seven days.

2. DraftKings MLB Promos

DraftKings is hosting multiple sign-up offers that can all be claimed. This gives MLB betting fans up to $1000 in bonuses for new users. Join DK today and claim these promos to wager on MLB games this week.

3. Bet365 MLB Promos

New bettors can claim the welcome promo at bet365. It is a bonus.

4. Fanatics MLB Promos

The Fanatics welcome offer is different depending on which state you live in.

5. BetRivers MLB Promos

New users can claim up to a bonus.

6. FanDuel MLB Promos

FanDuel is offering first-time bettors a Bet $5, Get Bet $5 Get $150 in Bonus Bets If Your Bet Wins! in Bonus Bets if Your Bet Wins promo. No promo code is needed, simply click on the FanDuel Sportsbook link on this page to get started. *T&Cs below.

21+ and in a state where FanDuel is licensed. A minimum $5 deposit and minimum $5 first real-money wager are required. Welcome offer applies to first online wager only. Wager on any FanDuel Sportsbook market (no odds limits) live on the platform. First bet must win to get Bet $5 Get $150 in Bonus Bets If Your Bet Wins! in bonus bets. Users will receive Bet $5 Get $150 in Bonus Bets If Your Bet Wins! in Bonus Bets within 72 hours of the qualifying wager settling. Bonus Bets are non-withdrawable and expire seven (7) days after receipt. Bonus Bet stake not returned as part of winnings. Limit of one bonus per person.

7. Caesars Sportsbook MLB Promos

Bettors who join Caesars Sportsbook can claim a Bet $1, Double Your Winnings on Next 10 Wagers Welcome Bonus. This offer is for first-time bettors.

Caesars also has the latest World Series odds.

How To Claim An MLB Betting Promo

The process of claiming MLB promos is simple. Follow the steps below and get ready to join MLB sportsbooks and claim promos.

  1. Click either PLAY NOW on the banner above for the desired sportsbook or on the sportsbook itself above.
  2. Sign up for the sportsbook. Enter name, address, email, phone number, and age.
  3. Enter promo code if required for the desired promo.
  4. Deposit into betting accounts. Sportsbooks accept bank accounts, debit cards, credit cards, and PayPal.
  5. Wager on the MLB.
  6. Claim welcome promo.

How We Rank Baseball Betting Promos

The way we at TheLines rank sportsbook promos is based on a few factors. For starters, we look at promos that offer the most bonuses to new and returning users. We also factor in promos that have a low risk for bettors. Promos like the Bet $5, Get $150 in Bonus Bets offer a bet365 is a good one because bettors only need to wager $5 for the payout. Even if the initial wager is a loss, bet365 will add funds to keep bettors in on the action.

Some promos would only grant the bonus bets if the wager is a win. Some other proms only return the initial funds as bonus bets if the first wager is a loss. When it comes to MLB sportsbook promos, we factor in all details when we rank them.

The criteria we consider when ranking bonuses are:

One of the standout promo offers is the welcome bonus at Caesar Sportsbook. Bettors can see up to $1,000 returned as bonus bets if their first wager is a loss. Caesars has additional value in their welcome offer as new customers can also earn Tier Credits and Reward Credits. These can be used to redeem hotel stays, game tickets, restaurant vouchers, and more.

We also factor in how much cash investment bettors are required to claim a promo along with the bonus bet expiration date. The multiple promos on offer at DraftKings make them a great value proposition for new users. Allowing bettors to claim multiple promos at once brings a lot of winning opportunities to first-time customers.

How Do MLB Betting Bonuses Work?

When it comes to the best sportsbook promo codes, they were in the same manner as any online purchase. A bettor enters the promo code and sees the bonuses credited to the user's account. When depositing, a section to enter promo codes will be available for bettors. Bettors must enter the designated promo code at this time, or they miss out on the offer.

For offers that require no promo code, bettors simply opt-in to claim the offer. When exploring a mobile sportsbook, bettors will see banners that say opt in for specific promotions. Click those banners and select the opt-in option to do so.

For bettors in markets that do not have mobile sports betting, there are still options for promos through DFS. Fans can find California sports betting promos for MLB matches via DFS apps for example.

Types Of MLB Bonuses

There are a few notable types of sportsbook bonuses that come from MLB promos. New users will see promos like deposit match bonuses, insurance, bet & get, or a combination of these. These are the most common bonuses that are offered to new users. All users will see promos like odds boosts for MLB matches as well as awarded bonus bets or bet credits.

Bettors should always make a note of the terms and conditions of any promo they accept. Some promos have specific criteria to account for. For example, a promo may only be valid on same game parlays or require wagers have odds no shorter than +400. How each bonus is issued depends on the promo and the sportsbook.

Notable Bonuses

MLB Betting Tools

When betting on the MLB, it is important for bettors to utilize all their betting tools. In addition to promo codes, bettors should always line shop to find the best odds. This is the major benefit of joining multiple sportsbooks. Bettors can accept multiple welcome promos and also shop the lines to find the best potential payout for each wager.

Fans can find World Series odds comparisons as well as MLB MVP odds comparisons to help bettors find the best odds on the market.

More MLB Sportsbook Promo Codes And Reviews

Throughout the MLB season, TheLines will keep fans updated on the latest and best sportsbook promo codes and bonuses.

The best MLB promos can be accessed when first joining a new sportsbook. The best MLB sportsbooks include:

Fans can join many of the recommended sportsbooks by using PayPal as their deposit method. PayPal is a fast and safe method of funding betting wallets and claiming promos. Bettors can both deposit and withdraw from their betting wallets using PayPal.

MLB promo codes FAQ

What is the best MLB betting promo code?
The best MLB betting promo code offer truly comes down to personal preference. The bet365 promo code is a notable one.
What sportsbook has the best MLB odds boosts?
When it comes to odds boosts, MLB bettors can find Caesars, BetMGM, FanDuel, Bet365, and BetRivers all have a great selection and often grant odds boosts.
What is the most money I can make when signing up for sports betting?
The BetMGM Sportsbook promo grants a welcome promo if your first wager loses with an additional $50 bonus bet on offer.
Are there baseball betting promos for existing users?
Yes. Sportsbooks host a slew of promos every day for returning bettors.