The Philadelphia 76ers are one loss away from elimination, and tonight's Game 5 against the Boston Celtics at 7 p.m. ET on ESPN is a win-or-go-home. I'm placing my trades on this elimination game tonight, and the Polymarket promo code ACTION is the best way to get into the market. Deposit $20 and get $20 in bonus funds instantly to put your trading power to work on one of the most compelling elimination spots of the first round.
Claim your $20 bonus with Polymarket invite code ACTION here:
Visit our Polymarket promo code review page for full terms and conditions.
Polymarket Promo Code ACTION Offer Details
| Promo Code | ACTION |
| Invite Code | ACTION |
| Offer | Deposit $20, Get $20 Bonus |
| New Customers Only | First-time Polymarket users only |
| Minimum Deposit | $20 |
| Location Eligibility | Physically present in an eligible Polymarket state |
| Identity Verification | Valid proof of identification required before bonus can be used |
| One Bonus Per Customer | Cannot be combined with other offers |
| Not Available In | AZ, IL, MA, MD, MI, MT, NV, and OH |
| Date Verified | April 28, 2026 |
How to Claim the Polymarket Invite Code ACTION
- Tap this link or any on this page to download the Polymarket app on iOS or Android.
- Open the app and tap "I Have an Invite Code".
- Enter ACTION to skip the waitlist and unlock the welcome offer.
- Sign in with your Apple or Google account.
- Verify your identity with a valid government-issued ID.
- Make a first deposit of $20 or more.
- Your $20 bonus is credited automatically and ready to use.
Sign up with Polymarket invite code ACTION before 7 p.m. ET tip-off tonight:
Celtics vs. 76ers Game 5 — Elimination Night Market Analysis (7 p.m. ET, ESPN)
Boston leads this series 3-1 after Sunday's 128-96 demolition in Philadelphia, one of the most lopsided playoff wins of the NBA Playoffs first round. The Celtics excelled from three, connecting on 24-of-53 attempts at 45.3%, with Payton Pritchard delivering 32 points off the bench on 12-of-21 shooting. Jayson Tatum added 30 points and 11 assists. Boston's bench outscore Philadelphia's 57-24. The 76ers simply had no answer.
Tonight, the Celtics return to TD Garden with a chance to close it out. The win probability entering Game 5 sits at Boston 82.8%/Philadelphia 17.2% which is one of the steepest elimination lines of the entire first round.
Current Polymarket market for Celtics vs. 76ers Game 5:
Trading your $20 welcome bonus on Boston at 83¢ returns approximately $3.97 in profit along with the $20 trading fee if the Celtics close out the series tonight — a low-risk, high-probability position on the defending-favorite to advance. On the other end of the market, a $20 trade on Philadelphia at 18¢ returns approximately $98.38 in profit if the 76ers somehow stave off elimination — the kind of longshot payout that makes prediction markets uniquely compelling compared to traditional spreads.
Boston's series Net Rating is a dominant +27.6, with a 51.8% Total Rebound Percentage across the four games. Philadelphia's -27.6 Net Rating tells the story of a team outplayed at both ends across the series. Joel Embiid had 26 points in Game 4 but shot just 42.9% with a plus/minus at -25.
There's also a NBA futures angle worth considering. If Boston closes out tonight, their chances of making the NBA Finals shift immediately. Trading Boston to win the Eastern Conference before the series ends locks in a better price than waiting for the series to close.
Trade on Celtics vs. 76ers Game 5 with Polymarket promo code ACTION here:
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NV, and OH.
