The best MLB betting promos are live for Wednesday's 15-game MLB slate, headlined by three national television games — Dodgers vs. Cubs at 2:20 p.m. ET on MLB Network, Cardinals vs. Yankees at 7:05 p.m. ET on Prime Video, and Pirates vs. Brewers at 7:30 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 best sports betting sites with bonus bets, first-bet safety nets, and bet-and-get offers all applying to tonight's national broadcast or any other game on the board.
Below we've broken down the top MLB betting promos available for Wednesday, walked through exactly what each one delivers, and included a pick from tonight's ESPN game to help you put your bonus to work right away on MLB odds.
| MLB Sportsbooks | MLB Betting Promos | Sign-Up Link |
|---|---|---|
| Fanatics Sportsbook | $1,000 Bet Match | ACTION26 |
| BetMGM | $1,500 First Bet Offer | TOPACTION |
| 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 |
| theScore Bet | $1,000 First Bet Reset | ACTNEWS |
| betPARX | $50 Bet Insurance | TANBONUS |
| Hard Rock Bet | $150 Bet-and-Get Promo | Click Here |
| BetRivers | 2nd Chance Bet, Up to $500 | Click Here |
| Borgata | $100 Bet-and-Get Promo | ACTION |
Wednesday MLB Pick: Pirates vs. Brewers (7:30 p.m. ET, ESPN)
Pick: Pirates moneyline (+113). Paul Skenes on the mound at plus money is the clearest value play on Wednesday's national TV slate. Skenes is one of the premier starters in baseball and gives Pittsburgh a genuine ace advantage against a Brewers club sending Kyle Harrison back from an arm injury. Harrison is making his return after missing several weeks, which introduces real uncertainty about his command and pitch count — factors that could shorten his outing and expose the Brewers bullpen earlier than Milwaukee would prefer. The Pirates are 5-5 over their last ten but have Skenes as the great equalizer — back Pittsburgh at plus money while deploying your welcome bonus on tonight's ESPN game.
Best MLB Betting Promos for Wednesday, August 5
Every offer below is verified for Wednesday's slate. Here's how each one works and how to claim it before tonight's first pitch.
1. Fanatics Sportsbook
The Fanatics Sportsbook promo code ACTION26 delivers a $1,000 Bet Match across your first ten days of action — a structure that rewards bettors who plan to stay active across the full Wednesday slate and beyond. Each day Fanatics matches your losing wager in bonus bets, giving you a rolling cushion across multiple games rather than requiring one large qualifying bet upfront.
| 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 TOPACTION delivers $1,500 in first-bet protection — the highest total value package among tonight's MLB betting promos. Place your first wager on the Pirates moneyline or any other market, and if it loses, BetMGM refunds the full stake in bonus bets up to $1,500.
| BetMGM Bonus Code | BetMGM Promo | BetMGM Legal States |
|---|---|---|
| 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 |
| 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 |
3. bet365
The bet365 bonus code delivers one of the cleanest structures among tonight's MLB betting promos — Bet $10, Get $150 in Bonus Bets, win or lose. A single $10 qualifying wager on the Dodgers or any other game on Wednesday's 15-game slate unlocks $150 in bonus bets regardless of how the bet settles. No code required — the offer activates through the link.
| 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 keeps the entry bar low — Bet $5, Get $150 in Bonus Bets instantly. A $5 qualifying wager on any market triggers the full $150 right away, making it one of the most accessible MLB betting promos available for Wednesday's slate. No code required — activates through the link.
| 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 runs across your first five days — Bet $5 daily and collect up to $1,000 in bet resets if those wagers lose, up to $200 back each day. A daily reset structure suits bettors who want coverage across the full week rather than a single upfront swing on tonight's games.
| 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. theScore Bet
The theScore Bet promo code ACTNEWS delivers a $1,000 First Bet Reset — place your opening wager on any Wednesday market and if it loses, theScore Bet refunds the full stake as bonus bets up to $1,000. Bettors in Michigan, New Jersey, Pennsylvania, and West Virginia receive a Bet $10, Get $100 version 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 |
7. betPARX
The betPARX promo code TANBONUS covers your first bet with 100% Bet Insurance up to a $50 bonus bet. It's an easy way to add another of these MLB betting promos to your stack.
| betPARX Promo Code | betPARX Sign-Up Offer | betPARX Legal States |
|---|---|---|
| betPARX Promo Code TANBONUS | 100% Bet Insurance, Up to $50 Bonus Bet | MD, NJ, PA |
8. Hard Rock Bet
The Hard Rock Bet promo code gives new users Bet $5, Get $150 in Bonus Bets if You Win, and it's one of the best bet-and-get MLB betting promos. A winning $5 qualifier unlocks the full $150 for Michigan and New Jersey bettors.
| 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 |
9. BetRivers
The BetRivers bonus code banks a 2nd Chance Bet worth up to $500, depending on your state. A losing opening wager returns as a bonus bet, so you stay in the game through the Wednesday slate.
| BetRivers Bonus Code | BetRivers Sign-Up Bonus | BetRivers Legal States |
|---|---|---|
| BetRivers Bonus Code (Click Here) | 2nd Chance Bet: Get Up to a $500 Bonus Bet | MI, PA |
| BetRivers Bonus Code (Click Here) | 2nd Chance Bet: Get Up to a $250 Bonus Bet | NJ |
| BetRivers Bonus Code (Click Here) | 2nd Chance Bet: Get Up to a $100 Bonus Bet | WV |
10. Borgata
The Borgata bonus code ACTION rounds out the list with a Bet $20, Get $100 Instantly in Bonus Bets offer for New Jersey players. Your $100 arrives right after the qualifying bet settles.
| Borgata Bonus Code | Borgata Welcome Offer | Borgata Legal States |
|---|---|---|
| Borgata Bonus Code ACTION | Bet $20, Get $100 Instantly in Bonus Bets | NJ |
MLB Prediction Markets for Deadline Day
Beyond the sportsbook MLB betting promos, prediction-market apps run their own sign-up offers and reach far more states. Trade on Wednesday's games with the prom below.
1. Kalshi
The Kalshi promo code ACTION rewards new traders with a Trade $25, Get up to $500 Bonus. Kalshi operates in more than 40 states, so it opens the action to traders outside of legal sports betting states.
| 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 gives new users a Deposit $10, Get $20 Trading Bonus. It's a quick add to your stack of MLB prediction market promos and, like Kalshi, reaches well over 40 states.
| Polymarket Promo Code | Polymarket Referral Bonus | Polymarket States Available |
|---|---|---|
| Polymarket Promo Code ACTION | Deposit $10, Get $20 Trading 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 |
