MLB Predictions & Saturday Prop Picks, Best Bets

The Saturday, April 5, slate features all 30 teams in action, and our baseball betting experts are all over it with three MLB predictions and picks.

They are all over the West Coast night action, with MLB best bets and props for Mariners vs Giants and Guardians vs Angels.

See how they’re betting on starting pitchers Robbie Ray, Bryce Miller and Jack Kochanowicz below.

[quickslipbasic bookname=”BetMGM” booklogo=”https://assets.actionnetwork.com/779359_BetMGM800x200@1x.png” image=”https://images.actionnetwork.com/blog/2025/04/Screenshot-2025-04-05-at-8.25.12%E2%80%AFAM.png” buttontext=”Saturday Night MLB Parlay on BetMGM” buttonlink=”https://sharpside.com/books/betmgm/passthrough?deeplinkId[0]=ML1441562919&deeplinkId[1]=ML1441561428&context=qs-articles”][/quickslipbasic]

MLB Predictions, Props, Best Bets Saturday

Game	Time (ET)	Pick
[teammatchup link=”#1″ firstfullname=”Seattle Mariners” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” secondfullname=”San Francisco Giants” secondlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png”][/teammatchup]	9:05 p.m.	Robbie Ray Over 15.5 Outs (-125)
[teammatchup link=”#2″ firstfullname=”Seattle Mariners” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” secondfullname=”San Francisco Giants” secondlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png”][/teammatchup]	9:05 p.m.	Bryce Miller Over 17.5 Outs (-165)
[teammatchup link=”#3″ firstfullname=”Cleveland Guardians” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-cleveland-guardians.png” secondfullname=”Los Angeles Angels” secondlogo=”https://static.sprtactn.co/teamlogos/mlb/100/laa.png”][/teammatchup]	9:38 p.m.	Jack Kochanowicz Under 3.5 Strikeouts (-145)
Specific betting recommendations come from the sportsbook offering preferred odds as of writing. Always shop for the best price using our MLB Odds page, which automatically surfaces the best lines for every game.

[relatedarticle articleimageurl=”https://images.actionnetwork.com/blog/2025/04/willy-adames.jpg” linktext=”Mariners vs Giants Prediction, Pick, Odds for Saturday, April 5″ link=”https://www.actionnetwork.com/mlb/seattle-mariners-vs-san-francisco-giants-prediction-pick-odds-saturday-april-5-qs”][/relatedarticle]

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[anchor name=”1″][/anchor]

[subheader sizedown=”false” text=”Charlie Wright’s Mariners vs Giants Best Bet: Back Robbie Ray”][/subheader]

[gameheader haspick=”true” picktext=”Robbie Ray Over 15.5 Outs (-125)” league=”mlb” awaylogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” awayname=”Seattle Mariners” awayslug=”seattle-mariners” homelogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png” homename=”San Francisco Giants” homeslug=”san-francisco-giants” date=”Saturday, April 5″ time=”9:05 p.m. ET” network=”MLB.TV” bookname=”DraftKings ” bookprimarylogo=”https://assets.actionnetwork.com/477013_DraftKings@1x.png” bookreviewslug=”draftkings”][/gameheader]

By Charlie Wright

These teams played an 11-inning game on Friday and had to use a ton of relievers.

Justin Verlander didn’t make it out of the third inning, so the Giants had to get nearly a full game (8 2/3 innings) out of their bullpen. They used seven relievers; Hayden Birdsong was the only bullpen option who didn’t pitch, and he threw two innings on Wednesday. He worked as a starter in Spring Training, so it’s unclear if he’d be available today on just two days of rest.

Robbie Ray threw 70+ pitches in his final 2 spring appearances. He went 5 1/3 innings on 78 pitches in his first start of the season. Ray was actually perfect through five innings before running into trouble in the sixth. The changeup he learned from Tarik Skubal seems like a real weapon.

Seattle ranked 25th in OPS and 24th in wOBA against lefties in 2024. The Mariners were up to 19th in wRC+, which adjusts for ballpark — T-Mobile Park was the toughest place to hit last season.

However, Oracle Park was also a bottom-five venue for right-handed hitters in 2024, according to Statcast’s Park Factors. The Mariners aren’t getting much of a park upgrade.

Pick: Robbie Ray Over 15.5 Outs (-125)

[teammatchup link=”#1″ shadow=”true” firstfullname=”Seattle Mariners” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” secondfullname=”San Francisco Giants” secondlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png”][/teammatchup]

[teammatchup link=”#2″ shadow=”true” firstfullname=”Seattle Mariners” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” secondfullname=”San Francisco Giants” secondlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png”][/teammatchup]

[teammatchup link=”#3″ shadow=”true” firstfullname=”Cleveland Guardians” firstlogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-cleveland-guardians.png” secondfullname=”Los Angeles Angels” secondlogo=”https://static.sprtactn.co/teamlogos/mlb/100/laa.png”][/teammatchup]

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[subheader sizedown=”false” text=”Nick Galaida’s Mariners vs Giants Best Bet: Good Spot for Bryce Miller”][/subheader]

[gameheader haspick=”true” picktext=”Bryce Miller Over 17.5 Outs (-165)” league=”mlb” awaylogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-seattle-mariners.png” awayname=”Seattle Mariners” awayslug=”seattle-mariners” homelogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-san-francisco-giants.png” homename=”San Francisco Giants” homeslug=”san-francisco-giants” date=”Saturday, April 5″ time=”9:05 p.m. ET” network=”MLB.TV” bookname=”DraftKings ” bookprimarylogo=”https://assets.actionnetwork.com/477013_DraftKings@1x.png” bookreviewslug=”draftkings”][/gameheader]

By Nick Galaida

On Friday, Seattle used eight relievers, six of which threw 16+ pitches.

Suffice it to say, they would like to get some length from Bryce Miller tonight.

It’s not the most favorable matchup, facing a San Francisco lineup that is adept at working the count, but it should be pitcher-friendly weather, and the Giants should have at least five right-handed hitters in the lineup, both of which are to Miller’s benefit.

Pick: Bryce Miller Over 17.5 Outs (-165)

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[subheader sizedown=”false” text=”Guardians vs Angels Best Bet: Fade Kochanowicz”][/subheader]

[gameheader haspick=”true” picktext=”Jack Kochanowicz Under 3.5 Strikeouts (-145)” league=”mlb” awaylogo=”https://images.actionnetwork.com/blog/2023/08/2023-mlb-logo-cleveland-guardians.png” awayname=”Cleveland Guardians” awayslug=”cleveland-guardians” homelogo=”https://static.sprtactn.co/teamlogos/mlb/100/laa.png” homename=”Los Angeles Angels” homeslug=”los-angeles-angels” date=”Saturday, April 5″ time=”9:38 p.m. ET” network=”MLB.TV” bookname=”BetMGM” bookprimarylogo=”https://assets.actionnetwork.com/779359_BetMGM800x200@1x.png” bookreviewslug=”betmgm”][/gameheader]

By PropModel

The strikeouts prop for Kochanowicz looks like a strong wager based on the current data.

The line of 3.5 compares favorably based on our MLB simulations.

The prop projects to hit 73.53% of the time based on the assumptions, and that represents a 13.53% edge. You can find all prop bet evaluations in ParlayIQ.

MLB Predictions & Saturday Prop Picks, Best Bets

MLB Predictions, Props, Best Bets Saturday

Pick: Robbie Ray Over 15.5 Outs (-125)

Pick: Bryce Miller Over 17.5 Outs (-165)

Pick: Jack Kochanowicz Under 3.5 Strikeouts (-145)