Guardians vs. Rays Prediction, MLB Picks for ALCS Game 1 – Monday, October 12

First pitch for the Cleveland Guardians vs. Tampa Bay Rays game is set for 8 p.m. ET on Monday, October 12, at Tropicana Field in St. Petersburg, Florida.

Cleveland arrives after completing a remarkable comeback against the Chicago White Sox in the ALDS. The Guardians overcame a 2-0 series deficit, winning three straight elimination games to advance. They closed out the set with a 2-0 win on Saturday, powered by dominant pitching.

Meanwhile, Tampa Bay swept the New York Yankees in the ALDS and showcased much of the dominance that landed them the best record in the American League.

Can LHP Foster Griffin help Cleveland steal a key road win to open the series, or will RHP Drew Rasmussen and the Rays defend home field and take an early ALCS lead?

Below, we'll break down our Guardians vs. Rays prediction and picks for Monday's ALCS Game 1, including the winner, over/under, and player picks for PrizePicks.

Make your Guardians vs. Rays picks on PrizePicks now.

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Guardians vs. Rays Prediction, Winner Payout, Over/Under for ALCS Game 1 – Monday, October 12

Tampa Bay enters Game 1 as home favorites against the Guardians, returning a 1.58x payout if they win outright.

Here are the full payouts for the Guardians vs. Rays game on PrizePicks.

Play the Guardians vs. Rays spread or over/under on PrizePicks.

Team Picks data is live at the time of writing and is subject to change.

Rasmussen (3.21 xFIP) gets the nod for Tampa Bay after nearly throwing a no-hitter against the Yankees in the ALDS opening game, allowing just 1 hit and walking a pair over 7.2 scoreless innings.

Griffin (3.76 xFIP) will take the ball for the Guardians, and he's already made an impact this postseason, striking out 7 batters over 2.2 innings of relief against the White Sox. However, his transition back into a starting role is worth monitoring.

Griffin hadn't pitched since September 23 before that postseason relief appearance, and he posted a 5.19 ERA over his final nine regular-season starts.

The Guardians may require more offensive output than they had during the regular season if they want to win this series. Cleveland finished the year with a .239 batting average, a .316 OBP, and a .380 SLG, all amounting to the ninth-worst wRC+ (97).

3B José Ramírez remains the lineup's centerpiece, and his 2-run home run helped Cleveland close out the White Sox in Game 5. The Guardians will need him and the rest of their lineup to find ways to generate runs against a Tampa Bay pitching staff that has been excellent in October.

Guardians vs. Rays Prediction on Winner for ALCS Game 1 – 10/12/26

Here are the key stats and trends behind our Guardians vs. Rays prediction on the winner for Monday's ALCS Game 1.

Unless otherwise noted, data used in this article is from FanGraphs, Baseball Savant, and MLB.com

• The Rays have been fantastic at home, finishing the regular season 55-26 at Tropicana Field. 
• They went 41-7 in games where they didn't allow a home run, which could be relevant against a Cleveland team that hit the fourth-fewest long balls this season (162).
• The Rays finished the regular season tied for the fifth-best wRC+ in baseball (104).
• Rasmussen has an xFIP about half a run better than Griffin, but the difference between these two pitchers is more substantial than that. Rasmussen can give this Rays team much more length, while Griffin threw just 53 pitches in his lone ALDS appearance.
• Tampa Bay's shorter ALDS  leaves its bullpen in a more favorable position entering Game 1.
• While the White Sox strike out a ton and rely on the homer to score runs, Tampa Bay's contact approach was on full display throughout the Yankees series. The ability to manufacture offense is paramount to postseason success, and the Rays do that with the very best.
• The regular-season head-to-head matchup also supports Tampa Bay. The Rays won five of the six meetings, showing their offense and pitching have generally matched up well against Cleveland.
• The Rays' pen has been phenomenal in the postseason, leading all teams in xFIP (2.4) and SIERA (2.05).

Lock in your Guardians vs. Rays prediction on PrizePicks before first pitch.

Guardians vs. Rays Picks, Player Stats for ALCS on PrizePicks: 10/12/26

Here are some of the top Guardians vs. Rays player picks to consider on PrizePicks for Monday's ALCS Game 1. Today's MLB picks include Foster Griffin and Drew Rasmussen.

Guardians P Foster Griffin vs. Rays: 3.5 Strikeouts

• Fading pitchers' strikeouts against the Rays has been a good strategy all season, with Tampa owning the lowest regular-season strikeout rate in baseball (18.8%).
• That high-contact approach has carried into the postseason, with the Rays striking out at just 17.5%, the lowest mark of any playoff team.
• Tampa Bay also struck out just 18.1% of the time against LHP in the regular season, compared with 19.1% against RHP.
• Cleveland may be reluctant to let Griffin face the order multiple times if Tampa Bay starts making hard contact.

Add Foster Griffin + Guardians to win to your PrizePicks lineup now.

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Rays P Drew Rasmussen vs. Guardians: 5.5 Strikeouts

• Rasmussen comes into this matchup scorching hot after generating 23 swinging strikes en route to striking out 10 Yankees in his last start.
• Rasmussen saw his strikeout rate jump in the second half of the season, when he posted a 9.41 K/9 compared to 8.88 K/9 in the first half.
• He was also a reverse-splits pitcher, posting a 10.16 K/9 against LHB but only a 7.7 K/9 against RHB. The Guardians' lineup projects to have eight of its nine hitters bat left-handed.
• In this seven-game series, protecting the bullpen from a heavy early workload will be crucial. If he pitches well, manager Kevin Cash could ride with Rasmussen a bit longer than usual.

Add Drew Rasmussen + Rays to cover the spread to your PrizePicks lineup now.

Make Guardians vs. Rays Picks on PrizePicks

The 2026 ALCS begins with a compelling pitching matchup between Griffin and Rasmussen. Cleveland arrives with momentum after an impressive comeback against Chicago, but Tampa Bay has home-field advantage and a starter in the stages of a dominant postseason.

Don't wait until first pitch — make your Guardians vs. Rays picks on PrizePicks now and earn real money if you're right.

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