The Kalshi sign up bonus ACTION55 gives eligible new users $55 after they make $25 in qualifying trades, and Tuesday's Brewers vs. Rays World Series Game 4 gives baseball fans a market to use it on. First pitch is scheduled for 8 p.m. ET at Tropicana Field on FOX.
The Kalshi promo code ACTION55 is available in both Florida and Wisconsin, so eligible Rays and Brewers fans can claim the offer before Game 4. Kalshi had Tampa Bay around 53¢ in its early Game 4 winner market, but prices can move substantially after Game 3 and once both MLB starting pitchers are confirmed.
Click the module below, to sign up with the Kalshi sign up bonus ACTION55 and trade on Brewers vs. Rays today:
Kalshi Sign Up Bonus ACTION55 for Brewers vs. Rays World Series Game 4
| Full Offer Details | |
|---|---|
| Kalshi Promo Code | ACTION55 |
| Kalshi Offer | Trade $25, Get $55! |
| Who Qualifies | New Kalshi users, 18+ |
| States Available | 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 |
| Full Terms | kalshi.com/tc/55 |
| Game | Brewers at Rays, World Series Game 4, Tuesday, Oct. 27, 8 p.m. ET, FOX |
How the Kalshi $55 Sign Up Bonus Works
The Kalshi sign up bonus is available to eligible new users. Open an account with promo code ACTION55, make $25 in qualifying trades and receive the listed $55 reward under the promotion terms.
Kalshi uses Yes or No event contracts rather than traditional sportsbook wagers. Contracts are priced between 1¢ and 99¢ and settle at $1 if the selected outcome occurs or $0 if it does not.
For example, a Rays Game 4 contract trading at 53¢ roughly represents a 53% market-implied probability of Tampa Bay winning.
Prices are set by traders on the exchange. You can also sell a position before settlement if sufficient liquidity is available. Our guide on how to bet on Kalshi explains the mechanics, while our Kalshi review covers the platform in more detail.
Brewers vs. Rays Game 4 Kalshi Prices
First pitch: Tuesday, Oct. 27, 2026, 8 p.m. ET | Ballpark: Tropicana Field, St. Petersburg | TV: FOX
| Market | Contract | Price | $100 Returns About | Trade It |
|---|---|---|---|---|
| Game 4 winner | Rays win (Yes) | 53¢ | $189 | Trade on Kalshi |
| Game 4 winner | Brewers win (Yes) | 51¢ | $196 | Trade on Kalshi |
| Game 4 total runs | Not listed at time of check | N/A | N/A | Trade on Kalshi |
Kalshi lists each team as its own Yes contract, so the displayed prices do not necessarily add up to exactly $1. The early market had Game 4 close to a coin flip.
For more prices across the World Series, check the latest MLB odds.
Brewers vs. Rays Prediction for Game 4
- Brewers vs. Rays Prediction: Rays to win at 53¢ ($100 returns about $189 before fees)
Tampa Bay is the side I prefer if the price remains near its early 53¢ mark.
The Rays have home-field advantage at Tropicana Field and entered the World Series with one of the strongest postseason starting-pitching performances in the field. Milwaukee's bullpen has also been excellent, so the pitching matchup and confirmed Game 4 starters will matter before locking in a position.
At close to an even price, I prefer Tampa Bay at home rather than paying much more for either side.
How to Claim the Kalshi Sign Up Bonus Before Game 4
- Click the Kalshi sign up bonus ACTION55 link to open Kalshi's registration page.
- Create an account and confirm ACTION55 is entered as the promo code.
- Complete the required identity verification and add funds.
- Make $25 in qualifying trades.
- Receive the listed $55 reward under the promotion terms.
Kalshi Sign Up Bonus for World Series Game 4
The Kalshi sign up bonus ACTION55 gives eligible new users $55 after $25 in qualifying trades, and Brewers vs. Rays Game 4 provides a Tuesday World Series market to target.
My early lean is Tampa Bay to win at 53¢, but check the Game 3 result, confirmed Game 4 starters and updated Kalshi price before trading Tuesday.
Terms and Conditions
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/55. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information. Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA.
