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Free MLB Player Props - Today's Prop Betting Picks for Hitters and Pitchers (5/31/23)

George Kirby - Fantasy Baseball Rankings, Draft Sleepers, Waiver Wire Pickups

Today's free MLB prop betting picks for Wednesday, May 31, 2023. Use Dan Palyo's top baseball prop picks and MLB prop bet recommendations to win money on sports books.

I'm back again with more MLB player props! If you're getting tired of me, don't worry - I am just covering once again for one of my fellow writers and I will never turn down a chance to share some of my favorite prop bets with you! I do strikeout and walk projections for pitchers every day and I hope you tailed yesterday as both Kodai Senga and Shane McClanahan hit for us (though Yusei Kikuchi goes on the no-fly list since he couldn't take advantage of an elite matchup).

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In this article, I'll provide my favorite prop bets for MLB games on Wednesday, May 31, 2023. If you ever want to chat about strikeout props or any other MLB bets, you can find me on Twitter @ThunderDanDFS. Good luck today and let's cash some bets!

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MLB Pitcher Prop Bets - Today's Betting Picks

Mitch Keller OVER 6.5 strikeouts (-130 DraftKings)

It's really for me (as a Pirates fan) not to be wildly optimistic about Mitch Keller and what he's doing this season. He's been one of the best stories in baseball so far and I was someone who backed his breakout this offseason as I thought he made some really important changes to his arsenal in the second half of last season.

It turns out that one more offseason was all he needed to really tune up his stuff. He's throwing harder than ever before and locating his pitches with incredible precision. At some point, I would like to see him improve on his 10.5% SwStr% as he's not going to catch guys looking forever, but it's hard not to endorse him for 7+ strikeouts today when he's done it six straight times.

The Giants have an above-average strikeout rate of 25%, too, which has my projections for Keller pushing up toward 9 today. Even if we account for some regression, it's still quite possible that Mitch gets to seven strikeouts today without being as dominant as he has been during this recent run.

Hunter Brown OVER 7.5 strikeouts (+115 DraftKings)

If Mitch Keller wasn't grabbing all the headlines, then Hunter Brown's ridiculous rookie year thus far would certainly be a bigger story. I mean, this kid has been tremendous and has quieted any doubts that he's not cut out for a starting role as some thought he would best be utilized out of the bullpen.

Brown made easy work of the Athletics in his last two starts, striking out 19 A's over 13 innings while allowing just three runs on seven hits.

He had eight strikeouts against the White Sox the start before that, giving him 8, 9, and 10 strikeouts over his last three starts. As with all rookies, he had some hiccups as he struggled against the Giants and Angels in early May, but he punched out eight Rays in seven impressive shutout innings, shut out Texas over seven frames, and shut out these Twins with seven strikeouts over seven innings back in early April.

He continues to improve and is demonstrating some impressive command of his fastball and nasty curveball. While he's trending up, the Twins are trending down (well, actually UP) as their K% against RHP over the last two weeks has been a massive 32%.

I think Brown can get 8+ tonight. He's feeling it and the matchup couldn't be better. I like betting on good pitchers and we getting a stud here who is locked in at plus odds. Go do your thing, Hunter!

George Kirby UNDER 1.5 walks (-200 DraftKings)

And now we go in a slightly different direction. This is what I call a "parlay prop" in that I rarely like to make straight bets that approach -200, but I am not sure we can pass up what has been free money all season. Kirby is the definition of an elite control pitcher. He's walked one batter or no batters in every start this season and he's only walked two hitters TWICE in his entire career (albeit a short career so far)

It doesn't really matter the matchup, we are betting on Kirby's control here and whether or not he's giving up runs is irrelevant. I like pairing this prop with some other safe outcomes (like a big ML favorite) to get up around +100 or better, but I would certainly endorse betting it straight up, too, because it's been automatic all season long.

Also consider: Zach Eflin over 5.5 strikeouts (+105)

 

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MLB Hitter Prop Bets - Today's Betting Picks

Josh Jung OVER 1.5 total bases (+110 DraftKings)

Jung has been one of my favorite hitters to bet on this year, especially when he faces a lefty. His splits against LHP this season have been elite as he's now at a .413 wOBA and .333 ISO. He went 3-5 yesterday with a double and a home run and continues to hit for power this year.

The opposing pitcher today is Joey Wentz, who is having a forgettable start to this season. Over his first two months, Wentz has a 5.35 xFIP and is allowing a .345 wOBA and .201 ISO to RHH. This is a matchup that Jung can dominate and I love his chances at continuing to rack up multi-hit games or cash the bet with just one swing if he goes for extra bases.

Wander Franco OVER 0.5 stolen bases (+340 DraftKings)

I haven't written up a stolen base prop all season, but here goes nothing! Franco and the Rays face lefty Justin Steele from the Cubs today. While Steele has had a solid season, he will have his work cut out for him today as the Rays rank as one of the best teams in baseball against lefties.

Franco has been doing an excellent job getting on base this year against left-handed pitching with an elite .452 wOBA. He's striking out just 6% of the time and walking over 10% of the time. He's managed to get on base now in eight straight games and has been running wild. He's stolen a base in five of his of his last seven games, including a 2-steal game against Toronto last week.

If he gets on base, he has the green light to run an these odds are too good to pass up!

Good luck, RotoBallers, let's have some fun today and make some money!



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REAL-TIME FANTASY NEWS

D'Andre Swift

on Track to Return After Full Practice
A.J. Brown

Back at Practice After Bye Week
Saquon Barkley

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Rhamondre Stevenson

Misses Another Practice, Availability in Doubt
Garrett Wilson

Cleared for Week 10 Matchup
Rico Dowdle

Back at Practice on Thursday
Bo Bichette

Blue Jays Extend Qualifying Offer to Bo Bichette
Craig Stammen

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Michael Pittman Jr.

Returns to Thursday's Practice
James Cook

Back on the Field on Thursday
Nick Chubb

Back at Practice on Thursday
Brian Thomas Jr.

Not at Practice Again on Thursday
Chris Godwin

Misses Thursday's Practice
Bucky Irving

to Miss Another Week of Practice?
Ty Johnson

Could See More Work in Week 10
Marshawn Kneeland

Cowboys Defensive End Marshawn Kneeland Passes Away
K'Andre Miller

Could Return to Action Thursday
Sean Monahan

Injured in Wednesday's Loss
Tyler Bertuzzi

Pots Third-Period Hat Trick Wednesday
Macklin Celebrini

Leads Sharks Past Kraken
Jakob Chychrun

Records Three Assists Wednesday
Alex Ovechkin

Scores 900th Career Goal
Dillon Brooks

Misses Sixth Consecutive Game
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on Track to Make Suns Debut Thursday
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Back in Action Thursday
Kawhi Leonard

Remains Out Thursday
James Harden

Won't Play on Thursday
LeBron James

to Miss at Least Five More Games
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Set to Lead Arizona Backfield in Week 10?
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Goes Through Full Practice on Wednesday
Jorge Polanco

Declines his 2026 Option to Become a Free Agent
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Set to Suit Up On Wednesday
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Back in Action on Wednesday Night
Nick Chubb

Unable to Practice Due to Foot Injury
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Ruled Out Versus Golden State
D'Andre Swift

Says he Will Play in Week 10
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Sidelined Versus Sacramento
Domantas Sabonis

Sidelined on Wednesday
Brandon Aiyuk

49ers "Pretty Confident" Brandon Aiyuk Will Play This Year
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Available Against Kraken
Anthony Edwards

Probable for Wednesday's Matchup With Knicks
Scott Laughton

Set for Season Debut Wednesday
Justin Brazeau

Ruled Out for Four Weeks
Tristan Jarry

Expcted to Miss Three Weeks
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Not on the Week 10 Injury Report
Johnny Furphy

Unavailable Wednesday
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Returns Against Blackhawks
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Should Play in Week 10
Rasmus Sandin

Back for Capitals Wednesday
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Out on Wednesday
Quenton Jackson

Unavailable on Wednesday
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Probable For Wednesday
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Remains Out With Ankle Injury
Walker Kessler

Out For The Season
Chris Sale

Braves Picking Up Chris Sale's 2026 Option
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Poised to Continue Hot Play in Mexico
Davis Riley

Struggling to Find Form Ahead of World Wide Technology Championship
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Leaning on Putter at World Wide Technology Championship
Stephan Jaeger

Offers Strong Value at World Wide Technology Championship
Ben Griffin

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Nick Dunlap

Looking to Find His Game at El Cardonal
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Searching for Consistency at El Cardonal
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Aims to Extend Fairytale Start at El Cardonal
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Extends Point Streak to Seven Games
Akira Schmid

Posts First Shutout of the Season
Jack Roslovic

Takes Point Streak to Four Games
Wyatt Johnston

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Trevor Zegras

Dishes Out Two Assists in Tuesday's Win
Darcy Kuemper

Shuts Out Jets With 23 Saves
Cutter Gauthier

Erupts for Four Points Against Panthers
Zach LaVine

Questionable to Face Warriors
Domantas Sabonis

Iffy for Wednesday
Austin Reaves

Considered Questionable for Wednesday
Luka Dončić

Luka Doncic Available Wednesday
Shane Bieber

Staying in Toronto for 2026
Salvador Perez

Agrees to Two-Year Extension With Royals
Gustav Nyquist

Jets Move Gustav Nyquist to Injured Reserve
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Opts in for Remaining Two Years on his Contract
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Becomes a Free Agent
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White Sox Pick Up 2026 Option on Luis Robert Jr.
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LJ Martin Expected to Play in Top-10 Matchup Against Texas Tech
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LIV Golf Expanding To 72-Hole Format In 2026
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Braves Hire Walt Weiss as Their Next Manager
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Cleared to Begin a Throwing Program
Brandon Woodruff

Declines Mutual Option for 2026
Freddy Peralta

Brewers Exercise 2026 Option on Freddy Peralta
Lucas Giolito

Declines his 2026 Player Option
J.J. Spaun

Finishes Sixth at Procore Championship
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Matti Schmid Finishes Tied for 46th at Baycurrent Classic
Keith Mitchell

Finishes Tied for 10th at Baycurrent Classic
Si Woo Kim

Finishes Tied for 21st at Genesis Championship
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Finishes Second at Baycurrent Classic
Austin Eckroat

Finishes Tied for 56th at Baycurrent Classic
Luke Clanton

Finishes Tied for 56th at Bank of Utah Championship
Pete Alonso

Officially Opts Out of his Contract With Mets
Alex Bregman

Opts Out of his Contract With Boston
Edwin Díaz

Edwin Diaz on the Open Market This Winter
Cody Bellinger

Becomes Free Agent After Opting Out
Robert Suarez

Opts Out, Becomes Free Agent
Kyle Larson

Wins His Second NASCAR Cup Series Championship at Phoenix
Ryan Blaney

Concludes the 2025 Season with A Win at Phoenix
William Byron

Strong Championship Effort Ends With Late-Race Flat-Tire Crash
Denny Hamlin

Overtime Four-Tire Call Costs Denny Hamlin the Championship
Chase Briscoe

Championship Bid Never Really Started After Two Tire Failures
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Nearly Steals Phoenix Race
David Onama

Suffers First-Round TKO Loss
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Scores First-Round TKO Win
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Dylan Raiola Suffers Season-Ending Injury
Waldo Cortes-Acosta

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Remains Undefeated
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Cut By UFC Following Submission Loss
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Dominates Daniel Frunza
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