Monday's MLB slate delivers 12 games across the board, and the biggest sportsbooks answer with their strongest sign-up offers of the summer. The best MLB betting promos on Monday, July 27 hand new customers everything from a $1,000 bet match to $150 in guaranteed bonus bets — bankroll you put toward Guardians vs. Reds on ESPN or any other game on tonight's card.
New bettors in Ohio, New York, Pennsylvania, and every other legal state grab these MLB betting promos in minutes: tap a sign-up link, enter the code, and place a qualifying wager before first pitch. Below, we rank the top offers from the best sports betting sites so you claim the most value on tonight's action.
| MLB Sportsbooks | MLB Betting Promos | Sign-Up Link |
|---|---|---|
| Fanatics Sportsbook | $1,000 Bet Match | ACTION26 |
| BetMGM | $1,550 in Bonuses | ACTION1550 |
| bet365 | $150 Bet-and-Get Promo | Click Here |
| DraftKings Sportsbook | $150 Bet-and-Get Promo | Click Here |
| FanDuel Sportsbook | $1,000 Bet Resets | Click Here |
| Hard Rock Bet | $150 Bet-and-Get Promo | Click Here |
| theScore Bet | $1,000 First Bet Reset | ACTNEWS |
Why Monday's MLB Slate Fits These Sportsbook Promos
The featured game tonight puts the Cleveland Guardians on the road at Great American Ball Park to face the Cincinnati Reds at 7:10 p.m. ET on ESPN — an AL Central vs. NL Central matchup with division standing implications for Cleveland and a national broadcast audience. Slade Cecconi (4-7, 4.60 ERA) takes the mound for Cincinnati tonight. The market is still forming
The rest of Monday's 12-game slate stretches from a 2:35 p.m. ET afternoon opener in Arlington to a pair of West Coast games after 9 p.m. ET, giving new users the full evening to put their welcome bonus to work across multiple markets. Check the MLB odds on the moneyline, run line, or a Cecconi strikeout prop, then apply one of these MLB betting promos to back your read on tonight's card.
1. Fanatics Sportsbook
The Fanatics Sportsbook promo code ACTION26 leads our list of MLB betting promos with a $1,000 Bet Match. New users place a first bet, and Fanatics Sportsbook matches that stake in bonus bets over the following 10 days — so a full $1,000 wager returns up to $1,000 back to keep betting Guardians vs. Reds and beyond.
The match structure rewards bettors who plan to stay active across the full week, since the bonus lands in increments as you play. Fanatics Sportsbook also runs alternate welcome paths in select markets, including a straightforward Bet $20, Get $350 offer and instant profit-boost tokens for players in New York and Illinois.
| Fanatics Sportsbook Promo | Fanatics Sportsbook Sign-Up Bonus | Fanatics Sportsbook Legal States |
|---|---|---|
| Fanatics Sportsbook Promo Code ACTION26 | $1,000 Bet Match | AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY |
| Fanatics Sportsbook Promo Code (Click Here) | Bet $20, Get $350 in Bonus Bets | AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, OH, PA, TN, VA, VT, WV, WY |
| Fanatics Sportsbook Promo Code (Click Here) | Get 10x100% Profit Boost Tokens Instantly | IL, NY |
2. BetMGM
The BetMGM bonus code ACTION1550 packs the most total value among Monday's MLB betting promos: a $1,500 first-bet offer plus $50 in BetMGM Reward Points. Place your opening wager on Guardians vs. Reds or any eligible market, and if it loses, BetMGM refunds the stake up to $1,500 in bonus bets — a wide safety net for a first swing on the ESPN national game.
The $50 in Reward Points lands regardless of outcome, so every new player walks away with something. BetMGM also tailors its welcome offer by state, running a no-sweat token version and a smaller Bet $10, Get $150 bet-and-get in markets such as Michigan, New Jersey, Pennsylvania, and West Virginia.
| BetMGM Bonus Code | BetMGM Promo | BetMGM Legal States |
|---|---|---|
| BetMGM Bonus Code ACTION1550 | $1,500 First Bet Offer + $50 BetMGM Reward Points | AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, MO, NC, NJ, OH, PA, TN, VA, WV, WY |
| BetMGM Bonus Code TANGET2 | $1,000 No Sweat Tokens | AZ, CO, DC, IA, IL, IN, LA, KS, KY, MD, MO, NC, OH, TN, VA, WY |
| BetMGM Bonus Code ACTIONGET | Bet $10, Get $150 Bonus Bets if You Win | MI, NJ, PA, WV |
| BetMGM Bonus Code TOPACTION | $1,500 First Bet Offer | AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, WY |
3. bet365
The bet365 bonus code keeps things simple with one of the most straightforward MLB betting promos in the market: Bet $10, Get $150 in Bonus Bets, win or lose. A $10 qualifying wager on Guardians vs. Reds or any Monday MLB game unlocks the full $150 regardless of how the bet settles.
That guaranteed payout makes bet365 a strong first pick for new bettors who want certainty over complexity. Players in New Jersey, Pennsylvania, and Michigan also receive a version that bundles 50 casino spins, while a $1,000 first-bet safety net covers bigger opening swings in other eligible states.
| bet365 Bonus Code | bet365 Welcome Promo | bet365 Legal States |
|---|---|---|
| bet365 Bonus Code (Click Here) | Bet $10, Get $150 in Bonus Bets, Win or Lose | AZ, CO, IA, IN, KS, KY, LA, MD, MO, NC, NJ, OH, PA, VA |
| bet365 Bonus Code (Click Here) | $1,000 First Bet Safety Net | AZ, CO, IA, IL, IN, KS, KY, LA, MD, MO, NC, OH, TN, VA |
| bet365 Bonus Code (Click Here) | Bet $10, Get $150 in Bonus Bets, Win or Lose, 50 Casino Spins | MI, NJ, PA |
4. DraftKings
The DraftKings promo code offers the lowest buy-in on this list of MLB betting promos: Bet $5, Get $150 Instantly in Bonus Bets. A single $5 wager on Guardians vs. Reds or any game on tonight's 12-game card triggers $150 in bonus bets right away — no waiting on the outcome, no conditions attached.
The instant payout and minimal $5 threshold make DraftKings one of the most accessible entry points on this list, particularly for new bettors looking to test the waters on a Monday night card with a national ESPN broadcast as the anchor game.
| DraftKings Promo Code | DraftKings Welcome Offer | DraftKings Legal States |
|---|---|---|
| DraftKings Promo Code (Click Here) | Bet $5, Get $150 Instantly in Bonus Bets | AR, AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY |
5. FanDuel
The FanDuel promo code takes a multi-day approach to its MLB betting promos, offering up to $1,000 in bet resets across your first five days. Bet $5 daily, and if that wager loses, FanDuel refunds it as a bonus bet — up to $200 back each day for five straight days.
That structure suits bettors who plan to follow the full MLB week, not just tonight's slate. FanDuel's deep odds menu and same-game parlay tools make it one of the best sports betting sites for regular players, and the offer covers New York, Ohio, Pennsylvania, and dozens of other states.
| FanDuel Promo Code | FanDuel Sign-Up Bonus | FanDuel Legal States |
|---|---|---|
| FanDuel Promo Code (Click Here) | Bet $5 Daily, Get Up To $1000 In Bet Resets | AZ, AR, CO, CT, DC, IL, IA, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY |
6. Hard Rock Bet
The Hard Rock Bet promo code rounds out the bet-and-get group of MLB betting promos with a Bet $5, Get $150 in Bonus Bets if You Win offer. A $5 qualifying wager that cashes unlocks $150 in bonus bets on top of the cash return — a clean structure for bettors in Michigan and New Jersey who like backing a clear favorite on a nationally televised Monday night game.
| Hard Rock Bet Promo Code | Hard Rock Bet Welcome Bonus | Hard Rock Bet Legal States |
|---|---|---|
| Hard Rock Bet Promo Code (Click Here) | Bet $5, Get $150 in Bonus Bets if You Win | MI, NJ |
7. theScore Bet
theScore Bet promo code ACTNEWS closes out our MLB betting promos with a $1,000 First Bet Reset. Place your opening wager on tonight's ESPN game and if it loses, theScore Bet returns the full stake as a bonus bet up to $1,000. Bettors in Michigan, New Jersey, Pennsylvania, and West Virginia receive a Bet $10, Get $100 bet-and-get promo instead.
| theScore Bet Promo Code | theScore Bet Welcome Offer | theScore Bet Legal States |
|---|---|---|
| theScore Bet Promo Code ACTNEWS | $1,000 First Bet Reset | AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, MO, NC, OH, TN, VA |
| theScore Bet Promo Code ACTNEWS | Bet $10, Get $100 in Bonus Bets If You Win | MI, NJ, PA, WV |
Best Prediction Market Apps for Monday's MLB Slate
Prediction market apps give baseball fans another way to get into tonight's action outside of traditional sportsbook promos. These platforms let you trade contracts on real-world outcomes — Guardians to win, Reds to cover, whether Cecconi records six strikeouts — and both platforms offer welcome bonuses for new users tonight.
1. Kalshi
The Kalshi promo code ACTION unlocks a Trade $25, Get Up to $500 Bonus — the highest new-user ceiling of any prediction market platform available for tonight's game. Kalshi operates as a CFTC-regulated exchange available across dozens of states, giving MLB fans a nationwide option where many sportsbooks don't reach, including in states without legal sports betting.
| Kalshi Promo Code | Kalshi Referral Offer | Kalshi States Available |
|---|---|---|
| Kalshi Promo Code ACTION | Trade $25, Get Up to $500 Bonus | AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IN, KS, KY, LA, ME, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY |
2. Polymarket
The Polymarket promo code ACTION delivers a Deposit $10, Get $20 Trading Bonus for new traders. Like Kalshi, Polymarket reaches a wide list of states — fans in markets without full sportsbook access can still take part in tonight's outcomes by trading live event contracts that reprice through every half-inning.
| Polymarket Promo Code | Polymarket Referral Bonus | Polymarket States Available |
|---|---|---|
| Polymarket Promo Code ACTION | Deposit $10, Get $20 Trading Bonus | AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC |
How to Claim These MLB Betting Promos
Getting started takes only a few minutes on mobile:
- Tap the sign-up link or code for the sportsbook you want above.
- Register a new account and confirm you are in a legal state.
- Make a qualifying deposit and enter the promo code where prompted.
- Place your first wager on Guardians vs. Reds or any game on tonight's 12-game slate.
- Collect your bonus bets and put them back to work on tonight's MLB odds.
Comparing several of the best sports betting sites side by side lets you stack value — many bettors open more than one account to claim multiple MLB betting promos on the same slate.
