The Polymarket sign up bonus ACTION gives eligible new users a $25 trading bonus after a $10 deposit, and Tuesday's Brewers vs. Rays World Series Game 4 gives traders a close market to use it on. First pitch is scheduled for 8 p.m. ET at Tropicana Field on FOX.
Open an account with Polymarket promo code ACTION, deposit $10 and receive the listed $25 trading bonus under the offer terms. Polymarket had Game 4 priced almost evenly on Monday afternoon, with Tampa Bay around 50.5¢ and Milwaukee around 50¢ before Game 3.
Click the module below to register with the Polymarket sign up bonus ACTION, and trade on MLB markets from Brewers vs. Rays today with one of the best prediction market promos:
Polymarket Sign Up Bonus for Brewers vs. Rays Game 4
| Detail | Value |
|---|---|
| New User Offer | Deposit $10, Get a $25 Trading Bonus! |
| Polymarket Promo Code | ACTION |
| Offer Type | Deposit bonus |
| Minimum to Qualify | $10 deposit |
| Reward | $25 trading bonus |
| Available States | 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 |
| Platform | Polymarket review |
| Game | Brewers at Rays, World Series Game 4, Tuesday, Oct. 27, 8 p.m. ET, FOX |
How the Polymarket Sign Up Bonus ACTION Works
The Action NetworkPolymarket sign up bonus ACTION is based on the initial deposit rather than the result of a first trade.
Sign up with Polymarket promo code ACTION, complete the required verification and deposit at least $10 to receive the listed $25 trading bonus under the promotion terms.
Polymarket uses Yes or No event contracts priced between 1¢ and 99¢. A winning contract settles at $1, while a losing contract settles at $0. A Rays contract trading at 50.5¢ therefore roughly represents a 50.5% market-implied probability of Tampa Bay winning.
Prices come from traders on the exchange and can change throughout the day. Positions can also be sold before settlement if sufficient liquidity is available.
Our guide on how to bet on Polymarket explains the trading mechanics on the prediction market app step by step.
Brewers vs. Rays Game 4 Prices on Polymarket
Trade on the latest MLB odds from Brewers vs. Rays with the Polymarket sign up bonus ACTION today:
| Market | Side | Buy Price | $100 Returns About | Trade It |
|---|---|---|---|---|
| Moneyline | Rays | 50.5¢ | $198 | Trade on Polymarket |
| Moneyline | Brewers | 50¢ | $200 | Trade on Polymarket |
| Run Line | Brewers +1.5 | 77¢ | $130 | Trade on Polymarket |
| Run Line | Rays -1.5 | 49¢ | $204 | Trade on Polymarket |
The early moneyline was essentially a coin flip, with only half a cent separating Tampa Bay and Milwaukee.
The run-line market was less settled when these prices were pulled, so I would put more weight on the moneyline until trading volume picks up Tuesday. A full-game total was not listed at the time of the initial check.
Brewers vs. Rays Prediction for Game 4
- Brewers vs. Rays Prediction: Rays to win at 50.5¢ ($100 returns about $198 before fees)
Tampa Bay is my preferred side if the price stays close to even.
The Rays get home-field advantage at Tropicana Field and entered the World Series with strong postseason starting pitching, while Milwaukee has leaned heavily on its bullpen throughout October.
That bullpen has been excellent, but Game 4 comes on the second night of a back-to-back after Game 3. At 50.5¢, I prefer the home team without paying a significant premium.
Want another set of prediction-market prices? Use the Kalshi promo code to claim its current welcome offer and check out the odds board, while our Kalshi vs. Polymarket comparison breaks down the two platforms.
How to Claim the Polymarket Sign Up Bonus for Game 4
- Click the Polymarket sign up bonus ACTION link to open Polymarket's registration page.
- Create an account and enter promo code ACTION.
- Complete the required identity verification.
- Deposit at least $10 to trigger the listed $25 trading bonus.
- Open the Brewers vs. Rays Game 4 market and choose your position before first pitch.
Polymarket Refer-a-Friend
The welcome offer is separate from Polymarket's referral program. Eligible users may also be able to share a referral code and receive a reward when a friend completes the qualifying requirements.
Check the current referral terms in the app before participating, since limits and requirements can change.
Bottom Line on the Polymarket Sign Up Bonus
The Polymarket sign up bonus gives eligible new users a $25 trading bonus after a $10 deposit with promo code ACTION.
For World Series Game 4, my early preference is Tampa Bay at 50.5¢ if the market stays near even. Check the Game 3 result, confirmed Game 4 pitching plans and Tuesday's live Polymarket price before opening a position.
Terms and Conditions
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
