Tonight's MLB board is thin on nine-inning drama and heavy on spectacle, and the best MLB betting promos are available for anyone registers before the players walk out of the corn.
Netflix has the night to itself at 7:30 p.m. ET, with the Twins serving as the designated home team against the Phillies at the Field of Dreams site in Dyersville, Iowa. This an 8,000-seat cornfield ballpark which hosts two clubs hanging around the playoff picture.
Redeem the MLB betting promos below and clear over $5,000 in new user bonus funds. Instant bonus-bet credits, first-bets on the house, daily resets and bet-and-get offers are all in play. Steer these bonuses at Phillies vs. Twins or any other game else on tap today, Thursday, Aug. 13, 2026.
| 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 |
Best MLB Betting Promos for Thursday, August 13
All of the MLB betting promos below has been verified by Action Network staff members. Here's what each bonus pays, what it costs to trigger these offers, and which code is needed to turn it on.
1. Fanatics Sportsbook Promo Code
The Fanatics Sportsbook promo codeACTION26 spreads a $1,000 Bet Match across ten straight days of betting, making it a top pick for anyone who plans to keep firing rather than take one big swing at the cornfield. Each day's losing wager comes back as FanCash, so the $100 daily cushion refills every morning.
The ten-day clock is useful timing, as you get covered bets tonight in Dyersville, the rest of the Phillies-Twins series back at Target Field, and the whole weekend slate behind it.
| 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 Bonus Code
None of the MLB betting promos on this page print a larger number than the BetMGM bonus code TOPACTION, which puts as much as $1,500 of cover behind your opening wager. Point your first bet at the Twins moneyline, a Dyersville total shaded by the humid Iowa air, a Kyle Schwarber home run prop, and more.
Lose your first ticket and the $1,500 BetMGM promo returns your stake in bonus bets, up to the $1,500 cap. This means the size of your qualifying bet decides how much of the offer you potentially cash in on.
| 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 Bonus Code
You don't have to type anything for the bet365 bonus code, as signing up through our link applies the offer on its own. The terms are about as simple as MLB betting promos get. Put $10 on any market Thursday, and $150 in bonus bets shows up whether your ticket wins or loses.
Send your qualifier wager to a Mick Abel strikeout total, the Phillies run line or a late West Coast side; the bet365 sign-up bonus pays the same either way.
| 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 Promo Code
The DraftKings promo code switches on through the link by itself, and it asks for less money up front than any of the MLB betting promos else here. A $5 stake on any market brings back $150 in bonus bets, and the credit lands the second your wager is accepted instead of after it settles.
If the goal is having bonus bets sitting in your account before Netflix cuts to the corn path at 7:30 p.m. ET, the DraftKings sign-up bonus offers the quickest turnaround.
| 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 Promo Code
There's no code to enter for the FanDuel promo code either, and the build here stretches your protection over five days rather than resting it all on one ticket. Bet $5 a day and every losing qualifier comes back as a reset worth up to $200, with $1,000 as the overall ceiling.
For bettors who put a few dollars through most nights, the FanDuel sign-up bonus fits the calendar better than a single oversized first-bet offer. Bet on the action in Dyersville tonight, Minneapolis over the weekend, and three more days after that.
| 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 Promo Code
theScore Bet promo code ACTNEWS unlocks a $1,000 First Bet Reset, so any market on tonight's card works as a qualifier bet. A losing opening bet is refunded in bonus bets, up to $1,000.
Note that theScoreBet offers a $100 bet-and-get instead of the reset to new bettors in Michigan, New Jersey, Pennsylvania and West Virginia. Check which version applies to you before you deposit.
| 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 Promo Code
The betPARX promo code TANBONUS wraps 100% insurance around your first wager and hands it back as a bonus bet worth as much as $50.
That's the shortest ceiling on the page, but registration runs about two minutes, which makes betPARX an easy bolt-on for Pennsylvania bettors already collecting the rest of these MLB betting promos.
| betPARX Promo Code | betPARX Sign-Up Offer | betPARX Legal States |
|---|---|---|
| betPARX Promo Code TANBONUS | 100% Bet Insurance, Up to $50 Bonus Bet | PA |
8. Hard Rock Bet Promo Code
The Hard Rock Bet promo code is another that activates on the link alone, and it's one of the bet-and-get MLB betting promos with a condition attached. Your $5 opener has to win before the $150 in bonus bets is released.
Only Michigan and New Jersey accounts qualify, and because Hard Rock Bet needs a winner, a short-priced favorite somewhere on the slate makes more sense as the qualifier than a coin-flip in the cornfield.
| 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 Bonus Code
There's nothing to type when it comes to the BetRivers bonus code, but note that the payout depends on your state. A 2nd Chance Bet is worth up to $500 in Michigan and Pennsylvania, $250 in New Jersey, and $100 in West Virginia.
A losing opener returns as a bonus bet, so BetRivers sign-up bonus keeps you live for the later windows on tonight's card, even if the Field of Dreams game turns sideways early.
| 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 Bonus Code
The Borgata bonus code ACTION rounds out the MLB betting promos list with a New Jersey-exclusive offer. Stake $20 and $100 in bonus bets arrives the moment the qualifier grades, with no win requirement and no waiting around.
Consider Borgata Sportsbook the last stop for Garden State bettors clearing tonight's MLB sign-up bonuses before first pitch.
| 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 Today's Slate
Sportsbook MLB betting promos aren't the only way into Phillies-Twins. Prediction market apps run welcome offers of their own, and their maps cover far more ground than legal sports betting does. This is handy on a night when a Netflix subscription reaches every state but the sportsbooks above don't.
1. Kalshi Promo Code
The Kalshi promo code ACTION credits new traders with a bonus of up to $500 once $25 of volume goes through. Kalshi is live in more than 40 states, which brings the Phillies-Twins cornfield game within reach for plenty of people who can't legally open a sportsbook account.
| 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, WI, WV, WY |
2. Polymarket Promo Code
The Polymarket promo codeACTION is the lighter lift of the two prediction market promos and clears fastest. Fund your account with $10 and a $20 trading bonus follows. Coverage again runs past 40 states, which makes it a natural option alongside Kalshi.
| 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 |
