On Tuesday, May 19, 2026 Polymarket promo code ACTION offers a new $50 bonus to new users who deposit $20 after account registration. This is an exceptional offer for the loaded sports slate on Memorial Day Week. Polymarket's straightforward bonus instantly adds more bankroll to one of the most active trading weeks of the year.
The NBA Playoffs have shifted to the Conference Finals and Cavs vs. Knicks Game 1 tips off tonight from MSG. Tomorrow, there's more NBA action plus Golden Knights vs. Avalanche in the Stanley Cup Western Conference Finals. In case you need more markets, catch loaded MLB matchups every day this week — making it the perfect time to activate the Polymarket promo code ACTION.
How to Use Polymarket Promo Code ACTION
- Tap this Polymarket sign-up link to start registration in your state.
- Create your account and enter Polymarket promo code ACTION.
- Complete identity verification and log in.
- Deposit at least $20 using your preferred payment method.
- Get a $50 bonus to trade a position on Cavs-Knicks Game 1 or any market you prefer this week.
Polymarket Promo Code ACTION Details for May 2026
| Offer | $50 trading bonus |
| Required deposit | $20 |
| Code | ACTION |
| Who qualifies | New Polymarket U.S. accounts (mobile only) in all states except AZ, IL, MA, MD, MI, MT, NV, and OH |
| Active as of | Tuesday, May 19, 2026 |
| Market access | All active Polymarket prediction markets |
Memorial Day Week Schedule on Polymarket
Here are some of the biggest sports events on Polymarket for May 19th:
NBA Playoffs Schedule
| Matchup | Time (ET) | Venue | TV | Probability |
|---|---|---|---|---|
| Cleveland Cavaliers vs. New York Knicks Game 1 | 8 p.m.; Tuesday, May 19 | Madison Square Garden — New York, NY | ESPN | CLE 31%/NYK 70% |
| San Antonio Spurs vs. Oklahoma City Thunder Game 2 | 8:30 p.m.; Wednesday, May 20 | Paycom Center — Oklahoma City, OK | NBC/Peacock | SAS 33%/OKC 68% |
| Cleveland Cavaliers vs. New York Knicks Game 2 | 8 p.m.; Thursday, May 21 | Madison Square Garden — New York, NY | ESPN | CLE 33%/NYK 68% |
| Oklahoma City Thunder vs. San Antonio Spurs Game 3 | 8:30 p.m.; Friday, May 22 | Frost Bank Center — San Antonio, TX | NBC/Peacock | OKC 49%/SAS 53% |
| New York Knicks vs. Cleveland Cavaliers Game 3 | 8 p.m.; Saturday, May 23 | Rocket Arena — Cleveland, OH | ABC | NYK 56%/ CLE 48% |
| Oklahoma City Thunder vs. San Antonio Spurs Game 4 | 8 p.m.; Sunday, May 24 | Frost Bank Center — San Antonio, TX | NBC/Peacock | OKC 48%/SAS 54% |
| New York Knicks vs. Cleveland Cavaliers Game 4 | 8 p.m.; Monday, May 25 | Rocket Arena — Cleveland, OH | ESPN | NYC 59%/CLE 47% |
Here's a quick example of how the Polymarket promo code ACTION works for Cavs vs. Knicks Game 1 tonight:
You create a new account and deposit $20 to get the $50 bonus. Let's say you play the deposited cash safe and place a $20 trade on the New York Knicks moneyline at 70¢ per share. If you win, the payout settles at $28.31, an $8.31 profit. If it loses, your position moves to $0.
Regardless of that first trade, you still have the $50 in bonus to utilize on a busy Memorial Day Week.
Other Markets on Polymarket This Week
Besides the hardwood, the NHL has moved to the Conference Finals round of the Stanley Cup Playoffs. The West begins on Wednesday with Vegas Golden Knights and Colorado Avalanche in Game 1. Next on Thursday, the East begins with Montreal Canadiens vs. Carolina Hurricanes Game 1. On top of all of that, there are compelling MLB games every day this week.
Sign up with the newest Polymarket referral code ACTION and deposit $20 for a $50 bonus to use on your favorite sports markets this week.
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.
