The 2026 MLB season is officially off and running, and the action continues for both the Seattle Mariners (0-1) and the Cleveland Guardians (1-0) on Friday, March 27. The two teams clash at 9:40 p.m. ET on Apple TV.
The Mariners look to even the score after dropping game one of the series, 6-4. Guardians SP Gavin Williams (4.08 xFIP in 2025) vs. Mariners SP George Kirby (3.25 xFIP) is the starting pitcher matchup. Seattle is listed as favorites, returning a 1.53x payout on PrizePicks Team Picks if it wins outright.
Below, we’ll break down our Guardians vs. Mariners prediction and picks for tonight's game. Make your MLB picks on PrizePicks and earn real money if you’re right, including on game winners, spreads, and totals!
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Guardians vs. Mariners Prediction, Spread, Over/Under
It seems like a fever dream that the Cleveland Guardians won the AL Central last year. They engineered one of the greatest regular-season divisional race comebacks, hawking down the Detroit Tigers, who led by 11.5 games at the All-Star break.
Despite this impressive comeback, it’s still a season the Guards would like to improve upon, as they finished with the third-best run differential in the division (-6) behind both the Tigers and Kansas City Royals.
Cleveland made very few roster changes from last year, with the two most notable ones being to their batting order. They signed 1B Rhys Hoskins to a prove-it deal at $1.5M, and they called up 2022 first-round OF Chase DeLauter. DeLauter made an immediate impact, homering twice yesterday.
Seattle looks to repeat its breakout season from last year, when it went 90-72 and won the AL West. The season ended in disappointment after taking a 3-2 ALCS series lead to the Toronto Blue Jays, only to lose to the eventual World Series runner-ups.
Despite that, it was a foundational season for this Mariners team, which will look to make another deep playoff run this year.
They made virtually no changes to the roster but did sign 2B Brendan Donovan from the St. Louis Cardinals. Donovan slashed .287/.353/.422 last year with a 119 wRC+. He'll seemingly slot in at the leadoff spot to start, at least vs. right-handed pitchers. He's already made an impact, logging two extra-base hits last night.
Guardians vs. Mariners Spread, Over/Under
The Guardians enter Friday’s game as road underdogs, returning a 2.38x payout on PrizePicks Team Picks if they win outright.
The Mariners are home favorites with a 1.53x payout if they win, via PrizePicks Team Picks, where you can earn money with your picks in 35 states.
- Spread: Seattle Mariners -1.5 (2.22x payout)
- Over/Under: 6.5 Runs (1.69x payout on over)
- Game Winner Payout: Guardians 2.38x | Mariners 1.53x
Team Picks data is live at the time of writing and is subject to change.
Guardians vs. Mariners Prediction on Spread – Friday, March 27
Here are the key stats to know before locking in your Guardians vs. Mariners MLB prediction on the 1.5-run spread for Friday, March 27, on PrizePicks.
- Cleveland had an 89-76 (53.9%) run line record last season, seventh-best in MLB.
- Seattle, on the flip side, had a run line record of just 76-98-0 (43.7%), third-worst in the league.
- The Guardians had the lowest BABIP last year at .268, according to FanGraphs. This suggests they may have gotten fairly unlucky and could be due for some positive offensive regression.
- Williams fared pretty well against this Mariners team in two starts last season, allowing just 3 runs over 11 innings.
- The Guardians were a remarkable 52-29-0 (64.2%) ATS on the road last year, the second-best road cover record in MLB.
Guardians vs. Mariners Picks for PrizePicks Today: 3/27/26
Here are the top Guardians vs. Mariners picks to target for Friday, March 27. Today’s MLB picks for PrizePicks are headlined by Guardians SP Gavin Williams and Mariners SP George Kirby.
Guardians SP Gavin Williams vs. Mariners Projection: 6 Strikeouts
- At home last season, Williams had a monster 10.76 K/9 to go along with a 3.44 xFIP. On the road, he had a 7.7 K/9 and a 4.78 xFIP.
- He also had an unbelievably high road walk rate of 5.13 BB/9. That's a troubling stat against a Mariners team that walked 8.8% of the time in 2025, tied for the eighth-most in the majors.
- Williams started one game in Seattle last season and went just 4 innings, allowing 6 hits while walking 3 batters with just 1 strikeout.
- The Mariners were slightly better against RHP last year, owning a K% of 22.7 and a wRC+ of 114. Against LHP, their K% would rise to 24.8% with a 108 wRC+.
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Mariners SP George Kirby vs. Guardians Projection: 16.5 Pitcher Outs
- Three inevitabilities of life seem to be death, taxes, and George Kirby at home. Kirby has had a higher K/9 and lower xFIP at home in every season with Seattle.
- The Mariners' stud pitcher got up to 75 pitches in spring training, which could mean that even with a limited workload, he might still throw 85+ pitches tonight. He averages 14.2 pitches per inning — a very tidy mark.
- The Guardians posted a putrid 85 wRC+ on the road last season, the third-worst in the majors, only better than the Pittsburgh Pirates and Colorado Rockies.
Make Guardians vs. Mariners Picks on PrizePicks
The Guardians vs. Mariners on Friday night features two division winners looking to start their seasons off strong. Cleveland aims to repeat as AL Central champions, while the Mariners look to get the taste of losing out of their mouths following last year’s playoff defeat and a loss to these Guardians.
You can make Guardians vs. Mariners picks on PrizePicks and PrizePicks Team Picks to earn real money. Just pick MLB players, predict More or Less on their projected stats, and cash in if you’re correct. And with Team Picks, you can make predictions on winners, spreads, and over/unders, now available in 35 states.
Stick around with the Playbook for continued MLB predictions, picks, and news throughout the 2026 season.
