MLB Betting Promos: Claim Top Offers for Braves-Nationals on ESPN

The best MLB betting promos are lining up nicely for this evening, as the Washington Nationals face the Atlanta Braves at Truist Park (7:15 p.m. ET on ESPN). New bettors who sign up before first pitch can stack more than $3,000 in combined welcome bonuses across the top sportsbooks and betting sites, as bonus bets, first-bet safety nets and bet-and-get offers all apply to this Braves vs. Nationals matchup.

Below, we've rounded up the top MLB betting promos available for Nationals vs. Braves, broken down exactly what each one gives you and walked through how to lock them in. Every offer here is for first-time customers who are 21 or older and located in a legal betting state, and they can all be used on tonight's game or any other spot on the MLB slate.

Best MLB Betting Promos for Nationals vs. Braves

Below is information about the top MLB betting promos to can claim ahead of tonight's Nationals vs. Braves game.

Fanatics Sportsbook Promo Code ACTION26

Our Fanatics Sportsbook promo code ACTION26 unlocks a Bet and Get offer that reaches up to $1,000 in FanCash. New users get a matched No Sweat Bet each day for a set stretch of up to $100 per day over 10 days, and each losing wager you place is refunded in FanCash. Spread across the run, that adds up to as much as $1,000 in coverage.

This is one of the MLB betting promos that fits daily bettors well, since it rewards you for coming back to the app each day rather than requiring one large qualifying bet. Thursday's Nationals-Braves matchup is a fine spot to kick off the sequence.

BetMGM Bonus Code ACTION1550

The BetMGM bonus code ACTION1550 delivers a First-Bet Offer worth up to $1,500 in bonus bets, along with $50 in BetMGM Rewards Points. Sign up, make a qualifying deposit and place your opening wager: if it wins, you keep the cash; if it loses, BetMGM refunds the stake in bonus bets, up to $1,500. Larger first bets on tonight's game are covered by the full amount, which makes this appealing for bettors who want to swing a little bigger on the Braves or Nationals.

Confirm the bonus code attached to one of the four MLB betting promos offered by BetMGM Sportsbook before you register, as specific codes vary in welcome offer and by location.

bet365 Bonus Code

The bet365 bonus code unlocks a Bet $5, Get $150 in Bonus Bets welcome offer, one of the most bettor-friendly MLB betting promos in the market, because the bonus lands no matter what your first bet does. Put down a $10 wager on the Nationals or Braves moneyline, and bet365 credits $150 in bonus bets regardless of whether that opening ticket wins or loses.

That win-or-lose structure is what makes this one of the strongest MLB sign-up bonuses on the board. There's no need to sweat your qualifying bet, and the $150 in bonus bets can be spread across any markets bet365 offers, including run lines, totals and player props on tonight's game.

DraftKings Promo Code

DraftKings is running a Bet $5, Get $150 in Bonus Bets offer, and no DraftKings promo code is required, as the deal applies automatically when you sign up through our qualifying link. Deposit at least $5, place a $5 wager on any market priced at -500 odds or longer, and $150 in bonus bets hits your account once immediately.

This DraftKings promo pays out win or lose, which keeps the risk low for new users. A $5 moneyline bet on the Braves or a total on the Nationals-Braves game is all it takes to trigger the full $150 in bonus bets with one of the premiere MLB betting promos.

FanDuel Promo Code

FanDuel takes a different approach with its welcome offer, and no FanDuel promo code is needed to claim it. New users can bet $5 per day for five straight days and collect up to $1,000 in bet resets. Each day your $5 qualifying wager loses, FanDuel refunds you up to $200 in bet resets, so the safety net can total as much as $1,000 across the week.

That makes this one of the more flexible MLB betting promos for daily baseball bettors. Start with Thursday's Nationals vs. Braves game and keep the offer rolling through the weekend slate, giving yourself insurance on five separate days of action.

Hard Rock Bet Promo Code

Hard Rock Bet keeps things simple with their welcome offer, and no Hard Rock Bet promo code is needed. Sign up, deposit, and place a first wager of at least $5 on Nationals vs. Braves or any other market. If that opening bet wins, Hard Rock Bet credits $150 in bonus bets, delivered as six $25 bonus bets you can spread across future games.

The one thing to note here is that the qualifying bet must win to unlock the $150. This is a bet-and-get offer rather than a bet-back safety net. Because of that, many bettors point a modest $5 wager at a shorter-priced favorite, such as the Braves at home, to give the qualifying ticket the best chance of cashing.

theScore Bet Promo Code ACTNEWS

theScore Bet promo code ACTNEWS offers a First Bet Reset worth up to $1,000. Place your opening cash wager on any market, and if it loses, theScore Bet refunds your full stake in bonus bets. The reset applies automatically when you register using our respective code.

There's a useful wrinkle to how the refund is delivered: rather than one lump credit, the reset is issued as five separate bonus bets, each worth 20% of your losing stake. That gives you multiple chances to turn the insurance into real winnings across the MLB slate with one of the top MLB betting promos.

Kalshi Promo Code ACTION

Kalshi is a CFTC-regulated prediction market rather than a traditional sportsbook, which means users trade contracts on real-world outcomes, including MLB games. The Kalshi promo code welcome offer is a bit different from the MLB betting promos above: trade $25 across any markets, and Kalshi credits a randomized bonus worth up to $500 once you clear that threshold.

The bonus lands after your first $25 in trades is submitted, and it isn't tied to whether those trades win or lose. Spread the $25 across several smaller trades to explore the platform or put it toward Nationals vs. Braves contracts, such as which team wins or how many total runs score.

Polymarket Promo Code ACTION

Polymarket, the largest prediction market in the world, returned to U.S. traders after gaining CFTC clearance and acquiring a regulated exchange in late 2025. Like Kalshi, the Polymarket promo code ACTION is open to eligible users 18 and up and deals in event contracts rather than sportsbook-style bets. The current welcome offer requires you make a qualifying deposit of at least $10, and $20 in trading credit gets added to your balance.

One thing to keep in mind: the $20 bonus is issued as non-withdrawable trading credit, though any profits you earn using it can be cashed out. Put those funds toward MLB markets like the Nationals-Braves game or a wide range of politics, economics and entertainment contracts today.