It's time for another pivotal day at Flushing Meadows, and new users can claim thousands of dollars in bonus bets with the best US Open betting promos for Wednesday, September 2, 2026.
Today's US Open odds feature a full second-round slate across Arthur Ashe, Louis Armstrong, and the outer courts, with play beginning at 11 a.m. ET on ESPN. Marquee matchups like Carlos Alcaraz vs. Jaime Faria and Arthur Rinderknech vs. Jaume Munar carry real seeding and draw implications, making these the top matches of the day.
Check out the top US Open betting promos below for the chance to claim thousands in bonus funds. There are plenty of unique offers to take advantage of, with some only requiring a deposit or first-time wager, while others give you a backstop to claim bonus bets if your first wager loses. Let's see what these deals have to offer:
| US Open Sportsbook | US Open Betting Promo | Sign-Up Link |
| Fanatics Sportsbook | $1,000 Bet Match | ACTION26 |
| BetMGM | $1,500 First Bet Offer | TOPACTION |
| bet365 | Bet $10, Get $365 Bonus + 50 Casino Spins | Click Here |
| DraftKings Sportsbook | $150 Bet-and-Get Promo | Click Here |
| FanDuel Sportsbook | Get $350 in Bonus Bets Over 7 Days | 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 |
US Open TV Schedule for Second Round Matches: Wednesday, September 2
- Wednesday: US Open Tennis Second Round, 11 a.m. ET to 6 p.m. ET (ESPN), 7 p.m. to 11 p.m. ET (ESPN)
- Thursday: US Open Tennis Second Round, 11 a.m. ET to 6 p.m. ET (ESPN), 7 p.m. to 11 p.m. ET (ESPN)
- Friday: US Open Tennis Third Round begins, 11 a.m. ET to 6 p.m. ET (ESPN), 7 p.m. ET to 11 p.m. ET (ESPN)
Best US Open Betting Promos for Wednesday, September 2
Action Network has compiled a list of the top eight US Open betting promos for Wednesday, September 2, 2026. New users can get started by signing up for one or all of these sportsbook promos, as long as they aren't already signed up. Without further ado, let's break it all down before first pitch tonight:
1. Fanatics Sportsbook Promo Code
Sign up with Fanatics Sportsbook promo code ACTION26 and you'll unlock a $1,000 Bet Match spread across 10 days. The structure is simple: place a wager on an eligible match each day, and if it loses, Fanatics refunds you in bonus bets up to $100. Back a second-round underdog for $100 and come up short? That's $100 back in bonus bets. Risk $50 instead? You'll get $50. The refund mirrors your stake, so smaller wagers produce smaller returns.
Loss-forgiveness offers like this one rank among my favorite US Open betting promos because we have already seen some upsets at this year's tournament, and this gives you room to chase a plus-money seed-slayer without torching your bankroll. A losing ticket still leaves you something to work with the following day.
With the promotion stretching across 10 days, you'll have second-round action Wednesday and Thursday plus the rest of the night to work with, though you may want to branch out to keep collecting daily. One last note: Fanatics runs different welcome offers by state, so check what's available where you are, as the alternate promo may be your only option.
| 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
The BetMGM bonus code TOPACTION carries the highest dollar value on these US Open betting promos in this article. It's an ace of a deal: if your first wager loses, BetMGM returns up to $1,500 in bonus bets. As with Fanatics, BetMGM runs several different welcome offers, so confirm which one applies in your state before you sign up.
It might sound aggressive, but the second round is a fine spot to take a swing at a live underdog. Seeds arrive at this stage with one match under their belt, and the draw always produces a few who look shakier than their ranking suggests — a $1,500 ticket on a plus-money upset would pay off in a serious way. And if the favorite handles business? You still walk away with $1,500 in bonus bets for the rest of the night. That's a reasonable trade-off either way.
| 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
The bet365 bonus code terms were recently upgraded, and it now ranks among the strongest US Open betting promos for new users. All it takes is a $10 first-time wager. Win or lose, you'll receive $365 in bonus bets plus 50 casino spins. That's more than double what bet365 was handing out before, and the offer expires Sept. 22, so don't let this one sit on the table.
| bet365 Bonus Code | bet365 Welcome Promo | bet365 Legal States |
|---|---|---|
| bet365 Bonus Code (Click Here) | Bet $10, Get $365 in Bonus Bets, Win or Lose | AZ, CO, IA, IN, KS, KY, LA, MD, MI, 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 | IL, TN |
4. DraftKings Promo Code
The DraftKings promo code recently refreshed, and the new terms are an improvement. Place a first-time wager of $5 or more, and you'll collect $200 in bonus bets. The payout arrives in four $50 installments: the first hits once your qualifying bet is placed, then another $50 lands every seven days after that.
This is about as low-friction as US Open betting promos get — five bucks on any second-round match gets you started, and whether that first bet wins or loses is irrelevant. The catch is that many bettors already have DraftKings accounts and won't qualify. If you're one of the holdouts, the tournament running through Sept. 13 lines up with the rest of the night, so there's no better time to sign up.
| DraftKings Promo Code | DraftKings Welcome Offer | DraftKings Legal States |
|---|---|---|
| DraftKings Promo Code (Click Here) | Spend $5, Get $200 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
Sportsbooks across the board are reworking their welcome offers, and the FanDuel promo code follows suit. FanDuel's updated deal asks new users to place a $5+ bet once a day for seven consecutive days. Each time one of those wagers settles, $50 in bonus bets lands in your account. Stack all seven, and you're looking at a maximum of $350, which puts it near the top of the US Open betting promos on this list.
This structure works well because you're getting a fresh reload every day for a full week. If I were signing up, I'd start the seven-day clock here in the second round, which would leave me holding $350 in bonus bets right around the time the quarterfinals arrive on Sept. 8. Nothing wrong with heading into the business end of the draw with a full tank.
| FanDuel Promo Code | FanDuel Sign-Up Bonus | FanDuel Legal States |
|---|---|---|
| FanDuel Promo Code (Click Here) | Get $350 in Bonus Bets When You Bet $5 for 7 Days | 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 ACTNEWS
In most states, theScore Bet promo code ACTNEWS unlocks a $1,000 First Bet Reset for new users. Put your opening wager on any second-round match at Flushing Meadows, and if it comes up short, theScore Bet reimburses you with up to $1,000 in bonus bets.
A separate version of the offer is running in Michigan, New Jersey, Pennsylvania, and West Virginia. In those states, the structure flips: place a first-time bet of $10 or more, and you'll pick up $100 in bonus bets if it wins — a much smaller ceiling, but you don't have to lose to collect. Worth confirming which version applies to you before locking anything in.
| 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 TANBONUS
It won't top the list of most lucrative US Open betting promos, but the betPARX promo code TANBONUS comes with 100% bet insurance: if your first wager loses, you'll get up to $50 back in bonus bets. With a safety net like that, I'd chase the biggest number I could find — and a second-round card this deep gives you plenty to work with. Stitch together a handful of straight-sets calls or plus-money seeds and see how far the ticket takes you.
One important caveat: this welcome offer is available only to bettors located in Pennsylvania.
| 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
With the Hard Rock Bet promo code, there's no code to punch in as you'd find with most US Open betting promos. Just click the link above and the registration process handles the rest. The offer itself is respectable without being the headliner: bet $5 and collect $100 in bonus bets if it wins. Keep in mind this one is limited to new customers in Michigan and New Jersey.
A $100 bankroll opens up a few directions worth exploring, and I'd give some thought to spreading it across four or five tournament futures. You can keep it relatively safe by backing one of the top seeds to lift the trophy, or roll the dice on a longer number and take an unseeded player to reach the semifinals — the kind of ticket that looks foolish on Wednesday and brilliant by the middle weekend.
| 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 $1o0 in Bonus Bets | MI, NJ |
US Open Prediction Markets for Wednesday, September 2
Prediction markets offer another route to claiming bonuses outside the traditional sportsbook setup. If you live in a state where sports betting hasn't gone legal, this is your way into the action on the second round.
Several leading prediction market apps have rolled out their own US Open prediction market promos. The catch is that the value doesn't stack up against what the sportsbooks above are offering. Still, free money is free money — I signed up for both offers myself and haven't regretted it.
1. Kalshi Promo Code ACTION
The Kalshi promo code ACTION comes with a refreshed welcome offer, and it's about as simple as they come. Register for an account, place $25 worth of trades, and you'll get a $25 bonus. Consider it an easy way to get on the board in the prediction market space.
| Kalshi Promo Code | Kalshi Referral Offer | Kalshi States Available |
|---|---|---|
| Kalshi Promo Code ACTION | Trade $25, Get $25 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 ACTION
The Polymarket promo code ACTION asks for a smaller upfront commitment, and the updated welcome offer gives you a $50 bonus. Make a first-time deposit of $10 and a $50 trading bonus hits your account — no trading volume requirement to clear first.
| Polymarket Promo Code | Polymarket Referral Bonus | Polymarket States Available |
|---|---|---|
| Polymarket Promo Code ACTION | Deposit $10, Get $50 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 |
