Best MLB Player Props Today: Rays vs. Guardians Prediction (ALCS Game 4)

The Kalshi promo code (ACTION55) is available for new traders to claim ahead of the ALCS Game 4 showdown in Cleveland, my best MLB player props today give you a starting point on which Rays vs. Guardians prediction markets to target before the 8 p.m. ET start.

• The Guardians carry a 2-1 series lead into Game 4 after Petey Halpin's go-ahead two-run homer powered a 3-2 win in Game 3. Cleveland's pitching staff has racked up 13 strikeouts in each of its last two outings.
• The Rays are looking to even the series back up and will likely hand the ball to Nick Martinez (15-6, 3.10 ERA. Martinez threw 13 innings without allowing an earned run against this Guardians lineup in two regular-season starts.

Before locking anything in, check lines across the best prediction markets. Here's my full rundown of today's top Rays vs. Guardians prop picks on Kalshi.

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Best MLB Player Props Today: Rays vs. Guardians Picks for ALCS Game 4

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Best Prop Today – José Ramírez 2+ Hits + Runs + RBIs

Ramírez has been Cleveland's engine all October, racking up eight hits and eight RBI during the team's ALDS comeback and ALCS Game 1 win before adding more hard contact in Game 3.

He's going up against a Rays staff that has walked a tightrope for most of this series, and he gets a full nine innings at home to pile up a hit, a run, or an RBI combination.

At 45 cents, the market is giving this close to a coin flip, which lines up with how often Ramírez has reached multiple stat lines in a single game this postseason.

Buying $100 of Yes shares at 45 cents gets roughly 222 shares in this Kalshi contract.

• If Ramírez clears 2+ Hits + Runs + RBIs: the position pays out $208.95.
• If he falls short: the full $100 stake is lost.

That's a little better than a 2-to-1 payout multiple on a game script that fits Cleveland's offensive identity.

Best Prop Today – Junior Caminero 2+ Hits + Runs + RBIs

Caminero has gone cold at the wrong time, striking out four times in Game 3 and sitting without a hit across his last several at-bats this series.

He's still Tampa Bay's primary power threat, and a club facing a 2-1 deficit needs its best hitter to snap out of it in an elimination-adjacent spot.

This price reads as a bet on regression toward his season-long numbers rather than a continuation of the current slump, so it carries real risk against a Cleveland staff that has been locking hitters down.

A $100 buy at 47 cents converts to roughly 213 shares on this contract.

• If Caminero clears 2+ Hits + Runs + RBIs: the position pays out $208.87.
• If he falls short: the full $100 stake is lost.

That's just over a 2-to-1 payout multiple on a bounce-back bet.

Best Prop Today – Nick Martinez 3+ Strikeouts

Martinez is lined up as Tampa Bay's likely Game 4 starter and has owned this specific Guardians lineup in the past, working 13 innings without allowing an earned run across two regular-season starts.

His postseason track record has been shakier, allowing two runs in 3.2 innings in his ALDS start against the Yankees, but reaching three strikeouts has been a low bar for him across the full season.

Even in a short outing, Cleveland's lineup gives him chances to miss bats, which keeps this number in play even if his pitch count stays on the low side.

A $100 buy at 45 cents converts to roughly 222 shares.

• If Martinez records 3+ strikeouts: the position pays out $213.53.
• If he falls short: the full $100 stake is lost.

That's a little better than a 2-to-1 payout multiple on a strikeout total he's cleared regularly all year.

Best Prop Today – Brayan Rocchio 2+ Total Bases

Rocchio had a hit in Game 3 that forced a mid-inning pitching change from Tampa Bay, and he's settled in as a steady complementary bat in Cleveland's lineup all series.

Two total bases only requires a double or a pair of singles, which is a very reachable number against a Rays staff still searching for length from its rotation.

At 26 cents, the market is pricing this as a real longshot even though the bar itself is modest, which creates some value for a bottom-of-the-order contributor who's been quietly productive.

A $100 buy at 26 cents converts to roughly 385 shares.

• If Rocchio reaches 2+ total bases: the position pays out $374.88.
• If he falls short: the full $100 stake is lost.

That's nearly a 4-to-1 payout multiple on a line that doesn't require much more than a single extra-base hit.

Best Prop Today – José Ramírez 1+ Home Run

Ramírez has already gone deep twice this postseason and remains one of the more dangerous power threats left in October.

Asking for a specific home run in any single game is always a longshot by nature, and the 13 cent price reflects that reality even for a hitter this locked in.

This works best as a speculative piece of a larger Kalshi portfolio rather than a standalone centerpiece, paired with one of the safer contact-based props above.

A $100 buy at 13 cents converts to roughly 769 shares.

• If Ramírez hits a home run: the position pays out $746.46.
• If he doesn't: the full $100 stake is lost.

That's close to a 7.5-to-1 payout multiple among today's best home run bets today on this board.

Best Prop Today – Yandy Díaz 1+ Home Run

Díaz has leaned more toward a doubles-and-average profile than a power threat this October, and Cleveland's bullpen has racked up strikeouts in bunches, limiting the clean swings he'll see.

At 9 cents, this is priced as a true lottery ticket on today's home run predictions today board rather than a lean one way or another.

Treat this as a small, speculative flier rather than a core position, best paired with a safer anchor leg elsewhere on this card.

A $100 buy at 9 cents converts to roughly 1,111 shares.

• If Díaz hits a home run: the position pays out $969.60.
• If he doesn't: the full $100 stake is lost.

That's just under a 10-to-1 payout multiple on the longest shot of today's board.

Best MLB Hits, Runs & RBIs Prop Bets for Rays vs. Guardians

• José Ramírez (CLE) (Hits + Runs + RBIs 2+: Yes 45%): Ramírez has carried Cleveland's offense all postseason and gets a full home slate to pile up a combined stat line.
• Junior Caminero (TB) (Hits + Runs + RBIs 2+: Yes 47%): Caminero is cold right now but remains Tampa Bay's top power bat, making this a bounce-back bet against a tough Cleveland staff.

Best Home Run Predictions Today for Rays vs. Guardians

• José Ramírez (CLE) (Home Run 1+: Yes 13%): Ramírez has already gone deep twice this postseason, giving this longshot price some real backing.
• Yandy Díaz (TB) (Home Run 1+: Yes 9%): Díaz has trended toward contact over power in October, making this one of the longer shots among today's best home run bets today.

Best Total Bases Prop Bets for Rays vs. Guardians

• Brayan Rocchio (CLE) (Total Bases 2+: Yes 26%): Rocchio's steady contact bat makes a double or multiple singles a realistic path to clearing this line.

Best Strikeout Prop Picks for Rays vs. Guardians

• Nick Martinez (TB) (Strikeouts 3+: Yes 45%): Martinez has dominated this Guardians lineup in the past and has cleared three strikeouts routinely all season.

What's Moving the Market for Rays vs. Guardians

Cleveland's pitching dominance is clearly baked into these prices, with Tampa Bay's top power bats like Junior Caminero and Yandy Díaz both sitting at longer odds than their regular-season roles would suggest.

Nick Martinez's strikeout price has firmed up as reports confirmed him as the likely Game 4 starter, shifting from uncertain bullpen speculation to a real, probable workload.

José Ramírez remains the board's most expensive name across multiple categories, a direct reflection of his role as Cleveland's offensive focal point all October.

For more context on how my best MLB player props today compare across exchanges, check out the prediction markets hub before placing a trade.

How to Trade This Board on Kalshi

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• Read a comprehensive Kalshi review to understand how this exchange operates.
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Final Thoughts on Today's Best MLB Player Props

Game 4 sets up as a pivotal swing in this ALCS, with Cleveland looking to push its lead to 3-1 and Tampa Bay needing a response from both its lineup and Nick Martinez on the mound.

José Ramírez and Nick Martinez anchor the safer end of this board, while the home run props on Ramírez and Yandy Díaz offer longer-shot upside for anyone looking to build out a bigger parlay-style portfolio across multiple contracts.

Whichever combination you choose, I recommend you consider each of my best MLB player props today for Rays vs. Guardians Game 4, all available to trade directly on Kalshi.

FAQs

Who is starting on the mound for the Rays in Game 4?

Nick Martinez is the likely Game 4 starter for Tampa Bay, and he has a strong history against this Guardians lineup with 13 scoreless innings across two regular-season starts.

Who is starting on the mound for the Guardians in Game 4?

Cleveland is expected to go with a bullpen game, mixing in arms like Joey Cantillo, Tanner Bibee, and Slade Cecconi after using ace Gavin Williams in Game 3.

What is the best home run prop for this game?

José Ramírez's 1+ home run prop carries the shortest price of the two home run picks on this board, reflecting his power output so far this postseason.

How do I use promo code ACTION55 on Kalshi?

Create a Kalshi account, make a qualifying deposit, and enter the promo code during sign-up to unlock the $55 bonus tied to this offer.

What is the series score heading into Game 4?

The Guardians lead the best-of-seven ALCS 2-1 after a 3-2 win in Game 3, and Game 4 is being played at Progressive Field in Cleveland.

Are these real trades or estimated prices?

Every pick on this board reflects a real screenshot-sourced Kalshi trade, with the listed return figures matching what the platform displayed at the time of the screenshot.

Where can I find more MLB prediction market content?

Check out the full MLB section on Action Network for more best MLB player props today coverage throughout the ALCS and World Series.