New users can grab a massive Kalshi sign up bonus before Friday’s crucial ALCS matchup. Enter the Kalshi promo code ACTION55 during registration, trade just $25 on the platform, and Kalshi credits your account with a $55 bonus. Bettors can put that bonus to work on Friday night when the Tampa Bay Rays visit the Cleveland Guardians for ALCS Game 4. First pitch comes at 6:00 p.m. ET from Progressive Field, and fans can catch the broadcast on TBS, with streaming also available on truTV and HBO Max.
The Rays vs. Guardians battle enters Friday locked in a tense American League Championship Series. Cleveland stole Game 1 with a furious late comeback, scoring five runs in the final two innings to win 7-3. Tampa Bay answered in Game 2, riding a dominant start from Freddy Peralta and a two-run single from Liam Hicks to a 3-1 victory that evened the series. Cleveland then retook the lead Thursday in Game 3, as rookie Petey Halpin’s go-ahead two-run homer off Griffin Jax powered a 3-2 win, backed by five strong innings from Gavin Williams and a shutdown bullpen that retired 16 of the last 17 Rays batters.
That back-and-forth history makes this Kalshi sign-up bonus even more appealing before a potential series-defining Game 4. With Tampa Bay in a commanding position, a drop-off could put them on the brink of elimination, so trading on this matchup adds extra stakes to every pitch. Locking in the bonus now lets new users start putting money to work on Rays vs. Guardians right away. The $55 credit stretches across the rest of the ALCS and beyond, covering the World Series and every other market Kalshi offers.
Steps to Claim the Kalshi Sign Up Bonus
Signing up takes just a few minutes. Follow these steps to activate the offer:
- Create a new Kalshi account using an email address, Google account, or Apple ID.
- Enter the Kalshi promo code ACTION55 during registration.
- Verify your identity with a government-issued ID and a quick selfie check.
- Deposit at least $10 using an approved payment method.
- Place $25 in qualifying trades within the stated window to unlock the $55 bonus credit.
Kalshi Availability by State
Kalshi operates as a federally regulated exchange and currently serves traders in roughly 41 states. Reports indicate the platform remains unavailable in Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, Nevada, Ohio, and Washington, though availability shifts as regulatory approvals change. Readers should confirm their state’s status directly in the Kalshi app or on the website before signing up, since exclusions can change with little notice.
Kalshi MLB Odds: Preview & Prediction for Rays vs. Guardians
Game 4 sets up as one of the tightest contests of this postseason. Prediction markets price this matchup close to a coin flip, with Tampa Bay at even money and Cleveland only a shade favored. That pricing makes sense given how this series has unfolded, with each team trading haymakers and neither squad separating itself through two games. Both bullpens have performed well, and both lineups have shown they can erupt for multiple runs in a single inning.
| Market | Tampa Bay Rays | Cleveland Guardians |
|---|---|---|
| Moneyline | 51% | 49% |
| Run Line | -1.5 (36%) | +1.5 (66%) |
| Total Runs | Over 6.5 (50%) | Under 6.5 (51%) |
First pitch for Rays vs. Guardians is at 8 p.m. ET on Friday, October 16, 2026. Always check Kalshi for the most up-to-date pricing before the game begins.
Tampa Bay finds itself in an unfamiliar spot, down 1-2 in the series, but the fundamentals that made the Rays the AL’s top seed haven’t changed overnight. Tampa Bay finished the regular season with the best record in the American League at 98-64, built on a deep, patient lineup loaded with left-handed bats that has historically eaten right-handed pitching alive—exactly the matchup Cleveland’s rotation leans on. The Rays also steamrolled the Yankees in a three-game ALDS sweep and have already shown in this series that they can beat Cleveland’s best, answering the Guardians’ Game 1 comeback with a statement Game 2 win behind a dominant Freddy Peralta start. With Nick Martinez reportedly lined up to start Game 4 after a strong run since returning from the injured list, Tampa Bay has a credible path to even the series back up.
Cleveland’s Game 3 win leaned heavily on its bullpen, and that unit has worked hard over three straight games: Cade Smith, Hunter Gaddis, Erik Sabrowski, and Daniel Espino have all been used in high-leverage spots, raising questions about their freshness over a long series. Several analysts who picked Tampa Bay to win the series outright before it began cited this exact concern: Cleveland’s bullpen is excellent but has already been pushed hard, while its offense has been inconsistent, with some hitters doing little damage through the playoffs so far. Facing a desperate Tampa Bay team that still boasts the superior roster on paper: better rotation depth, a more dangerous offense, and an edge in team speed and defense, so there’s a real case that the Rays reassert control on Friday and send this series back to a more even footing.
Rays vs. Guardians Prediction: Rays Moneyline (51%)
If you like our content and picks, sign up with the Kalshi promo code ACTION55 to claim the bonus and start trading on Rays vs. Guardians Game 4 tonight.
Terms & Conditions for Kalshi Promo Code ACTION55
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.
