On Sunday, June 7, 2026, the Polymarket referral code ACTION gives new users a $50 bonus after completing a qualifying $20 first deposit. This offer gives baseball fans extra trading power for a nationally televised MLB slate featuring Nationals vs. Diamondbacks at 3:15 p.m. ET on Peacock and Giants vs. Cubs at 8:30 p.m. ET on NBC.
New users can apply the bonus from the Polymarket referral code ACTION toward available MLB prediction markets, including game winners, team-based outcomes, totals-style markets, and other active contracts throughout Sunday’s schedule. With two featured baseball windows on Peacock and NBC, this is a strong day to activate the offer and explore MLB markets on one of the top prediction market apps.
How to Use Polymarket Referral Code ACTION
- Click 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 on Nationals vs. Diamondbacks, Giants vs. Cubs, or any market you prefer this week.
Polymarket Referral Code ACTION Details for June 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 | Sunday, June 7, 2026 |
| Market access | All active Polymarket prediction markets |
Why Polymarket Works for Nationals vs. Diamondbacks and Giants vs. Cubs
Sunday’s MLB slate gives users multiple chances to trade on baseball prediction markets. Nationals vs. Diamondbacks begins the nationally featured action at 3:15 p.m. ET on Peacock, while Giants vs. Cubs closes the day in prime time at 8:30 p.m. ET on NBC.
That staggered schedule creates a useful trading window on prediction markets. Users can start with the afternoon game, then shift attention to the evening matchup as lineups are confirmed and market prices move closer to first pitch. MLB markets can react quickly to starting pitcher news, bullpen availability, weather, lineup changes, and public trading sentiment.
Here is a simple example of how the Polymarket referral code ACTION works for Sunday’s MLB slate:
You create a new account and deposit $20 to unlock the $50 bonus. From there, you could use your deposited funds on a Nationals vs. Diamondbacks market and save the bonus funds for Giants vs. Cubs later in the night. If your first trade wins, your payout depends on the contract price at entry. If it loses, that position can settle at $0, but the $50 bonus still gives you extra trading value to use within the eligible window.
Other Markets on Polymarket This Week
Beyond Sunday’s MLB matchups, users can explore other active sports and event markets on Polymarket. The 2026 World Cup is approaching, the NBA Finals are ongoing, and additional MLB games will continue throughout the week.
Sign up with the newest Polymarket promo code ACTION and deposit $20 for a $50 bonus to use on your favorite MLB, soccer, basketball, or other live prediction 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.
