👉 TAP TO SAVE 30% WITH CODE NEW
X
Lost password?

Don't have an account?
Gain Access Now

X

Receive free daily analysis

NFL
NBA
NHL
NASCAR
CFB
MLB
MMA
PGA
ESPORTS
BETTING

Already have an account? Log In

X

Forgot Password


POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

Starting Pitcher Waiver Wire Pickups - Week 9

Starting pitcher waiver wire adds for Week 9 of the 2021 fantasy baseball season. Mike Schwarzenbach identifies SP pickups for shallow and deep leagues.

Week 9 of the fantasy baseball season is here and man, does it feel good to have it happen in mid-May rather than September. This time last year, fantasy playoffs were starting. This season, we've got a long way to go and I for one could not be more excited we still have over four months of baseball.

With so much time left on the calendar, there's still time for scuffling fantasy teams to pull things together and make a run in the summer months. This week's batch of starting pitcher waiver wire options are players that can help fantasy managers win now, but they could also have long-term upside.

Let's get into it, a fresh batch of starting pitcher waiver wire options for Week 9 (May 24-30) of the fantasy baseball season.

Be sure to check all of our fantasy baseball draft tools and resources:

 

Pickups for Shallow Leagues

Robbie Ray, Toronto Blue Jays (56% Rostered)

What happens when a three-true-outcomes pitcher stops walking hitters? You get the 2021 version of Robbie Ray who is putting together a career year for the Blue Jays. Ray has always had the talent. He was among the league leaders in strikeout rate in both 2017 and 2018. The issue for him has always been too many walks. Last season, his 17.9 percent walk rate was by far the worst mark of any hurler who tossed at least 50 innings.

This season, Ray is sporting a much more manageable 6.6 percent walk rate. He's still striking out batters at a healthy clip as his 48:11 strikeout-to-walk ratio is the primary factor behind his success this year, as is his 45 percent ground ball rate. He still gives up a lot of hard contact and his barrel rate isn't where you'd want it to be but, here's the thing, solo home runs here and there aren't hurting Ray. His 3.79 ERA is supported by a 3.44 xFIP and his 1.17 WHIP is easily a career-best. Funny what cutting back on free passes will do. Ray has burned fantasy managers before. His strikeout ability has long made him a magnet for strikeout-starved teams and those endeavors seldom ended well. This season feels different. As long as the walks stay at bay, you'll want to start Robbie Ray.

Brady Singer, Kansas City Royals (45% Rostered)

Ever have a song stuck in your head that you can't shake? Well, as a fantasy baseball nerd, I've had the Singer rather than the song stuck in my head. He hasn't fully broken out this season, but Singer has shown flashes of brilliance and all of his underlying metrics point to a breakout for the former first-round pick. The Royals righty is currently sporting a 4.00 ERA and a 1.33 WHIP while averaging over a strikeout-per-inning.

A look under the hood backs up his solid surface stats. Singer ranks top-25 in the Majors with a 30.9 percent called-plus-swinging strike rate, one of the most accurate advanced metrics for predicting future success. When Singer does give up contact, he's done a great job of avoiding the sweet spot of the bat as he's averaging just 1.6 barrels-per-plate appearance, best in the Majors so far this season. Singer has prospect pedigree, plays in a great pitcher's park, and is excelling at the aspects of the game that lead to future success.

Yusei Kikuchi, Seattle Mariners (47% Rostered)

Kikuchi is a repeat from last week but he's not rostered on nearly enough fantasy teams to escape the waiver wire column. Kikuchi has completed at least six innings in four straight starts and has allowed three runs or fewer in all of them. Coincidentally or not, Kikuchi's run-prevention success is syncing up with an uptick in strikeouts. The left-hander only struck out one in an April 23 start against Boston. Since then, he's struck out seven, seven, 11, and eight batters in his last four starts. An uptick in fastball velocity seems to be the culprit behind his recent success.

As we can see, Kikuchi's average fastball velocity in that April 23 start was his lowest this season. His velocity has increased since then and we're seeing how good he can be when his four-seam/cutter combination is working. There's no reason to expect his velocity to dip as the weather heats up, implying Kikuchi should be able to continue racking up the K's.

 

Pickups for Deeper Leagues

David Peterson, New York Mets (11% Rostered)

Peterson is listed in the deep league options as that's where his rostership percentage implies he should be, but honestly, Peterson is a great pick up for any fantasy team heading into Week 9. It may not be obvious looking at his pedestrian surface numbers, but there's a reason Peterson is the cover boy on this piece. Not much about his 4.97 ERA screams "add me" to fantasy baseballers, but overlook Peterson at your own risk, as he's been the victim of a lot of bad luck early in the season. The left-hander has a .311 BABIP allowed, a 26 percent HR/FB%, and has only stranded 63 percent of baserunners.

Assuming Peterson gets some luck-based regression, he's got the skill to be a quality option in fantasy. His xFIP (3.13) and SIERA (3.43) both imply his ERA should be much lower. He's struck out 28.9 percent of batters this season and is sporting a healthy 12.3 percent swinging-strike rate. When batters do hit the ball? How's about a 52.6 percent ground ball rate. Best of all for Peterson, he's got two juicy matchups this week. He'll start things off on Monday versus the Rockies in their first game away from Coors Field, a must-start spot for almost any pitcher. Later in the week, he'll face a Braves team that has struggled mightily with LHP. Pick up and start Peterson.

James Kaprielian, Oakland Athletics (12% Rostered)

Kaprielian is an older prospect, which may explain the lack of hoopla around him after back-to-back strong starts to begin the season. It took Kaprielian a long time to get to the Majors as he battled a myriad of injuries in his minor league career. However, this is still a former first-round pick who routinely was posting strikeout rates near 30 percent when he was healthy in the minors. He's made two starts for the A's and has been good in both. He held the Red Sox to one run in 5 1/3 innings with six strikeouts in his season debut. This past week, he posted another good start, allowing two runs in five innings against the Angels. He struck out nine in that game and generated a healthy 13 swinging strikes on 99 pitches.

This week Kaprielian gets the Mariners who have been no-hit twice this season and rank 27th in OPS versus RHP. Pick up Kaprielian for the good matchup, hold him for his long-term potential as a piece of an A's rotation that hasn't been overly reliable this season.



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Waiver Wire Advice


Check out RotoBaller's entire fantasy baseball waiver wire pickups and sleepers list, updated daily!




POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Ja'Tavion Sanders

Panthers Expect Ja'Tavion Sanders to be Ready for Offseason Program
Dylan Crews

Optioned to Triple-A Rochester
Quinshon Judkins

Does Quinshon Judkins Have RB1 Upside in Dynasty Formats?
Jayden Reed

Is Jayden Reed a Buy-Low Candidate After Injury-Marred 2025 Campaign?
Lerone Murphy

Set For UFC London Main Event
Chris Olave

Rehabs his Dynasty Value With Resurgent 2025 Performance
Movsar Evloev

Looks To Remain Unbeaten
Tyrone Tracy Jr.

Facing Uphill Battle for Playing Time in New York
Michael Aswell

Jr. An Underdog At UFC London
Luke Riley

Set For UFC London Co-Main Event
Chimere Dike

Could See a Diminished Role in 2026
Joe Ryan

Named Opening Day Starter for Twins
Chase Brown

Profiles as a High-End Dynasty Running Back Heading into 2026
Sam Patterson

Looks To Extend His Win Streak
Michael Page

Set For Welterweight Bout
Austen Lane

In Dire Need Of Victory
Iwo Baraniewski

A Favorite At UFC London
C.J. Stroud

Will C.J. Stroud Ever Rediscover his Rookie-Season Magic?
Bijan Robinson

Finally Has the Falcons' Backfield All to Himself
Najee Harris

Remains on the Open Market
George Kittle

Injury Complicates Price Tag
Jameson Williams

Flashes WR1 Upside Ahead of 2026
Parker Washington

a Solidified Fantasy Option Despite Crowded Offense?
Nico Collins

Has Yet to Reach His Full Potential
Collin Murray-Boyles

Unlikely to Play Friday
Jonathan Kuminga

Ruled Out Friday Against Rockets
Aaron Gordon

Off Injury Report Against Toronto
Sergei Bobrovsky

Shuts Out Oilers with 21 Saves
Peyton Watson

Not Yet Ready to Return Friday
Gary Trent Jr.

Exits Thursday with Adductor Issue
Trent Frederic

Exits Early Against Panthers
Malik Monk

Leaves Early Thursday With Shoulder Injury
Mason Appleton

Hurt Thursday Night
Lauri Markkanen

Out at Least Two More Weeks
Tyler Toffoli

Suffers Lower-Body Injury in Thursday's Loss
Victor Hedman

Makes Early Exit Due to Illness
Juuse Saros

Dealing with Upper-Body Injury
Rome Odunze

Steps Into a Larger Role for 2026
Baker Mayfield

Loses Top Receiver After Subpar Season
Ray Davis

' Fantasy Managers Continue to Exercise Patience
Ja'Marr Chase

Has Overall WR1 Upside with Quarterback Healthy
Javonte Williams

Still Penciled Into Workhorse Role
Quentin Johnston

Expected to Handle More Targets in 2026?
Los Angeles Chargers

Derwin James Suffers Minor Injury
Spencer Knight

Shuts Down the Wild on Thursday
Adam Fantilli

Scores Two Goals in Victory
Francisco Alvarez

Pulled Early Thursday With Back Tightness
Amir Coffey

Exits Early with Ankle Sprain
Daeqwon Plowden

Moves Into Starting Lineup Thursday
Noah Clowney

Won't Play Friday Vs. New York
GG Jackson II

Unlikely to Play Against Boston
Naz Reid

Could Sit Again Friday
Josh Hart

Ruled Out Friday Against Brooklyn
Jalen Brunson

Set to Play Against Brooklyn
Brice Sensabaugh

Out Against Milwaukee
John Konchar

Out Thursday Against Bucks
Kyle Kuzma

Ready to Play Thursday Vs. Utah
Myles Turner

Set to Return Versus Jazz
Kevin Porter Jr.

Sidelined Against Utah
Donovan Mitchell

Ruled Out, Jaylon Tyson to Start Thursday
Auston Matthews

Ruled Out for 12 Weeks
Austin Reaves

Cleared to Play Thursday
Yaroslav Askarov

Still Out Thursday
Luis Severino

to Start for A's on Opening Day
Kirill Kaprizov

Won't Play Against Blackhawks
Alex Tuch

Expected to Return Thursday
Noah Laba

Unavailable Against Blue Jackets
Andrew Copp

Returns From Three-Game Absence
Josh Anderson

Won't Play Thursday
Logan Gilbert

Named Mariners Opening Day Starter
José Ramírez

Jose Ramirez Back in Cactus League Lineup on Thursday
Hayden Birdsong

to Have Tommy John Surgery, Miss Entire 2026 Season
Zack Wheeler

to Pitch in Minor-League Game on Monday
Paul Skenes

Pirates Officially Name Paul Skenes Their Opening Day Starter
Jurickson Profar

Officially Suspended for Entire 2026 Season
Carson Williams

"Likely" to Be Rays Opening Day Starting Shortstop
Trey Yesavage

Will Open 2026 on the Injured List Due to Shoulder Impingement
Jack Hughes

Posts Another Three-Point Performance in Victory
Jackson Blake

Collects Three Points on Wednesday
WAS

Cole Hutson Scores in NHL Debut on Wednesday
Max Fried

to Start on Opening Day for Yankees
Arizona Diamondbacks

Diamondbacks Not Naming a Closer to Begin the Season
Adrian Kempe

Could Return Thursday
Mason McTavish

Sits Out Second Consecutive Game
Ross Johnston

to Miss 3-4 Weeks
Matthew Liberatore

Named Cardinals Opening Day Starter
Roki Sasaki

to be in Opening Day Starting Rotation
Akshay Bhatia

Withdraws From Valspar Championship
José Berríos

Jose Berrios has Stress Fracture, Won't be Ready for Opening Day
CFB

Alberto Mendoza Drawing Positive Reviews at Georgia Tech
CFB

Anthony Colandrea Impressing in Nebraska's Spring Practices
J.J. Spaun

Offers Upside Despite Poor Course History at Innisbrook
Jeremy Peña

Opening Day "Not Ruled Out" for Jeremy Pena
Aaron Rai

Looks to Bounce Back at Valspar Championship
Johnny Keefer

Brings Ball-Striking Upside to Valspar Championship
Billy Horschel

a Volatile Play at Valspar Championship
Ben Griffin

Looks to Rebound at the Valspar Championship
Corey Conners

Brings Elite Ball-Striking to Valspar Championship
Cole Ragans

Named Royals Opening Day Starter
Xander Schauffele

Trending In The Right Direction For Valspar Championship
Sahith Theegala

Has Shot to Challenge at Valspar Championship
Mackenzie Hughes

Looking to Bounce Back at Valspar Championship
Nicolai Hojgaard

Finding Rhythm For Valspar Championship
Matt Fitzpatrick

Continues Hot Start to 2026 Heading to Valspar Championship
Pierceson Coody

Heads to Valspar Championship Following Two Missed Cuts
Shohei Ohtani

to Pitch in Cactus League Game on Wednesday
Seiya Suzuki

has Sprained Knee, Opening Day Availability Unclear
Wyndham Clark

Searching for Momentum at Valspar Championship
Justin Thomas

Is Justin Thomas Back Ahead of This Week's Valspar Championship?
Jordan Spieth

to Bounce Back at Favored Valspar Championship?
Brooks Koepka

is Starting to Find His Groove Again Ahead of Valspar Championship
Viktor Hovland

is One of The Best DFS Plays at Innesbrook
Rasmus Hojgaard

to Get Back on Track at Valspar Championship
Tony Finau

is Again a Scary Option at Valspar Championship
Blades Brown

Continues PGA Tour Run at Valspar Championship
Josh Emmett

Suffers First-Round TKO Loss
Kevin Vallejos

Scores First-Round TKO
Amanda Lemos

Drops Back-To-Back Fights
Gillian Robertson

Extends Her Win Streak
Andre Fili

Drops Decision on Saturday
Denny Hamlin

Dominates and Gets His Third Career Las Vegas Win
Chase Elliott

Earns Runner-Up Finish at Las Vegas
William Byron

Wins A Stage and Finishes Third at Las Vegas
Christopher Bell

Finishes Fourth at Las Vegas After Strong Run
Kyle Larson

Fades to Seventh Despite Leading Laps Early at Las Vegas
Andre Fili

Jose Delgado Edges Andre Fili in Split-Decision Win
Oumar Sy

Suffers First-Round Submission Loss
Ion Cutelaba

Returns To The Win Column
CFB

CJ Carr Enters Sophomore Season as Heisman Favorite
CFB

Aaron Philo Not a Lock to be Florida's Starting QB?
CFB

George MacIntyre the Favorite to Win Tennessee Quarterback Battle?
CFB

Keelon Russell, Austin Mack Battling for Alabama QB1 Duties
Christopher Bell

Looking for Redemption, Wins Pole at Las Vegas
Denny Hamlin

Should Contend for Another Vegas Win
Chase Briscoe

Qualifies 18th Despite Toyota Dominating at Las Vegas
Chase Elliott

May Fly Under the Radar at Las Vegas
NASCAR

Ross Chastian Has Been As Solid As They Come at Las Vegas
Ty Gibbs

Could Ty Gibbs Finally Break Through With a Win at Las Vegas?
Brad Keselowski

a Solid DFS Pick at Las Vegas
Kyle Larson

Should Kyle Larson be Considered A Favorite for Las Vegas?
William Byron

Could Compete for a Top-Five Finish at Las Vegas
Ryan Blaney

Is Ryan Blaney Worth Rostering in Tournament DFS Lineups for Las Vegas?
Tyler Reddick

Could Continue his Top-10 Streak at Las Vegas
Joey Logano

Should DFS Managers Underestimate Joey Logano for Las Vegas?
Chris Buescher

Is Chris Buescher Worth Rostering For Las Vegas DFS Lineups?
NASCAR

Bubba Wallace is A Risky DFS Option Who Could Pay Off at Las Vegas
Josh Berry

Has Plenty of Upside for Las Vegas DFS Lineups
Ryan Preece

Scores his First Las Vegas Top-10 Starting Spot in Qualifying
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF