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Week 21 Start/Sit Matchups: MLB Starting Pitchers (SP)

By SD Dirk on Flickr [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons

Bill Dubiel's Week 21 (2017) fantasy baseball starting pitcher (SP) matchups - starts, sits, plays and benches. MLB streamers, two start pitchers and sleepers, based on matchups.

Your friendly neighborhood @Roto_Dubs is back with his weekly starting pitcher matchups. Below are the projected starting pitching matchups for Week 21, and will be updated as more starters are announced. If you've got any questions about which pitchers can capitalize on a juicy matchup and which ones might be worth putting on the pine against a fierce offense, this is the weekly piece for you.

For every week of the fantasy baseball season, we look to analyze all of the projected starting pitcher matchups and put together our optimal lineups. Here at RotoBaller, we believe that it’s key to analyze every SP matchup, each and every week, to help determine which SPs to start/sit and to hopefully find some hidden gems to bolster your teams.

This weekly piece considers the pitcher’s opponents, their career stats against the opponent, some ballpark factors and historical splits. With all of this information, we then provide our start/sit recommendations for each starting pitcher matchup for the approaching week of fantasy baseball.

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SP Matchups & Start/Sit Recommendations

PROBABLE PITCHERS (8/21/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
ARI@NYM Taijuan Walker SP | ARI START Robert Gsellman SP | NYM SIT
BOS@CLE Eduardo Rodriguez SP | BOS START Mike Clevinger SP | CLE SIT
LAD@PIT Alex Wood SP | LAD START Gerrit Cole SP | PIT START
MIL@SF Zach Davies SP | MIL START Chris Stratton RP | SF SIT
MIN@CHW Tim Melville SP | MIN SIT Carlos Rodon SP | CHW START
OAK@BAL Chris Smith RP | OAK SIT Wade Miley SP | BAL SIT
SEA@ATL Andrew Albers RP | SEA SIT Mike Foltynewicz SP | ATL START
TEX@LAA Cole Hamels SP | TEX START Tyler Skaggs SP | LAA SIT
PROBABLE PITCHERS (8/22/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
ARI@NYM Patrick Corbin SP | ARI START Steven Matz SP | NYM SIT
BOS@CLE Doug Fister SP | BOS SIT Carlos Carrasco SP | CLE START
CHC@CIN John Lackey SP | CHC START Homer Bailey SP | CIN SIT
COL@KC Jon Gray SP | COL START Danny Duffy SP | KC SIT
LAD@PIT Edward Paredes RP | LAD SIT Jameson Taillon SP | PIT START
MIA@PHI Dan Straily SP | MIA START Nick Pivetta SP | PHI START
MIL@SF Jimmy Nelson SP | MIL START Jeff Samardzija SP | SF START
MIN@CHW Kyle Gibson SP | MIN SIT Lucas Giolito SP | CHW SIT
NYY@DET Masahiro Tanaka SP | NYY START Matthew Boyd SP | DET SIT
OAK@BAL Paul Blackburn SP | OAK SIT Ubaldo Jimenez SP | BAL START
SD@STL Clayton Richard RP | SD START Lance Lynn SP | STL START
SEA@ATL Marco Gonzales SP | SEA SIT Lucas Sims SP | ATL SIT
TEX@LAA Tyson Ross SP | TEX SIT Ricky Nolasco SP | LAA SIT
TOR@TB Marcus Stroman SP | TOR START Chris Archer SP | TB START
WAS@HOU Tanner Roark SP | WAS SIT Charlie Morton SP | HOU START
PROBABLE PITCHERS (8/23/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
ARI@NYM Zack Godley RP | ARI START Chris Flexen RP | NYM SIT
BOS@CLE Drew Pomeranz SP | BOS START Corey Kluber SP | CLE START
CHC@CIN Mike Montgomery RP | CHC START TBA TBD
COL@KC Antonio Senzatela SP | COL SIT Ian Kennedy SP | KC SIT
LAD@PIT Rich Hill SP | LAD START Trevor Williams RP | PIT SIT
MIA@PHI Justin Nicolino SP | MIA SIT Zach Eflin SP | PHI SIT
MIL@SF Matt Garza SP | MIL SIT Matt Moore SP | SF START
MIN@CHW Ervin Santana SP | MIN START James Shields SP | CHW START
NYY@DET Luis Severino SP | NYY START Jordan Zimmermann SP | DET SIT
OAK@BAL Sean Manaea SP | OAK SIT Dylan Bundy RP | BAL START
SD@STL Jhoulys Chacin SP | SD START Luke Weaver SP | STL START
SEA@ATL Erasmo Ramirez RP | SEA START R.A. Dickey SP | ATL START
TEX@LAA Andrew Cashner SP | TEX START Andrew Heaney SP | LAA SIT
TOR@TB Chris Rowley RP | TOR SIT Austin Pruitt RP | TB SIT
WAS@HOU Edwin Jackson SP | WAS SIT Mike Fiers SP | HOU SIT
PROBABLE PITCHERS (8/24/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
ARI@NYM Robbie Ray SP | ARI START Rafael Montero RP | NYM SIT
BOS@CLE Chris Sale SP | BOS START Trevor Bauer SP | CLE START
CHC@CIN Jake Arrieta SP | CHC START Sal Romano SP | CIN SIT
COL@KC German Marquez SP | COL START Jake Junis SP | KC SIT
LAD@PIT Hyun-Jin Ryu SP | LAD START Chad Kuhl SP | PIT SIT
MIA@PHI Vance Worley RP | MIA SIT Jerad Eickhoff SP | PHI START
MIN@CHW Jose Berrios SP | MIN START Derek Holland SP | CHW SIT
NYY@DET Jaime Garcia SP | NYY SIT Michael Fulmer SP | DET START
SD@STL Luis Perdomo SP | SD SIT Carlos Martinez SP | STL START
TEX@LAA Martin Perez SP | TEX SIT TBA TBD
TOR@TB J.A. Happ SP | TOR START Alex Cobb SP | TB START
WAS@HOU Matt Grace RP | WAS SIT Dallas Keuchel SP | HOU START
PROBABLE PITCHERS (8/25/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
BAL@BOS Chris Tillman SP | BAL SIT Rick Porcello SP | BOS START
CHC@PHI Jose Quintana SP | CHC START Ben Lively SP | PHI SIT
COL@ATL Chad Bettis SP | COL START Julio Teheran SP | ATL SIT
DET@CHW Justin Verlander SP | DET START Miguel Gonzalez SP | CHW SIT
HOU@LAA Collin McHugh SP | HOU START Parker Bridwell RP | LAA START
KC@CLE Jason Hammel SP | KC SIT Danny Salazar SP | CLE START
MIL@LAD Brandon Woodruff SP | MIL SIT Kenta Maeda SP | LAD START
MIN@TOR Bartolo Colon SP | MIN SIT Nick Tepesch SP | TOR SIT
NYM@WAS Jacob deGrom SP | NYM START Max Scherzer SP | WAS START
PIT@CIN Ivan Nova SP | PIT START Robert Stephenson SP | CIN SIT
SD@MIA Travis Wood RP | SD SIT Adam Conley SP | MIA START
SEA@NYY Ariel Miranda SP | SEA SIT CC Sabathia SP | NYY SIT
SF@ARI Ty Blach SP | SF SIT Zack Greinke SP | ARI START
TB@STL Jake Odorizzi SP | TB START Michael Wacha SP | STL START
TEX@OAK A.J. Griffin SP | TEX START Kendall Graveman SP | OAK SIT
PROBABLE PITCHERS (8/26/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
BAL@BOS Kevin Gausman SP | BAL SIT Eduardo Rodriguez SP | BOS START
CHC@PHI Kyle Hendricks SP | CHC START Nick Pivetta SP | PHI SIT
COL@ATL Kyle Freeland SP | COL START Sean Newcomb SP | ATL SIT
DET@CHW Anibal Sanchez SP | DET SIT Carlos Rodon SP | CHW START
HOU@LAA Brad Peacock SP | HOU SIT Tyler Skaggs SP | LAA SIT
KC@CLE Jason Vargas SP | KC START Mike Clevinger SP | CLE START
MIL@LAD Chase Anderson SP | MIL SIT Alex Wood SP | LAD START
MIN@TOR Dillon Gee RP | MIN SIT Marco Estrada SP | TOR START
NYM@WAS Robert Gsellman SP | NYM SIT Stephen Strasburg SP | WAS START
PIT@CIN Gerrit Cole SP | PIT START Luis Castillo SP | CIN START
SD@MIA Dinelson Lamet SP | SD START Dan Straily SP | MIA SIT
SEA@NYY Yovani Gallardo SP | SEA SIT Sonny Gray SP | NYY START
SF@ARI Madison Bumgarner SP | SF START Taijuan Walker SP | ARI START
TB@STL Blake Snell SP | TB SIT Mike Leake SP | STL SIT
TEX@OAK Cole Hamels SP | TEX START Jharel Cotton SP | OAK SIT
PROBABLE PITCHERS (8/27/17)  
GAME VISITING STARTER START/SIT HOME STARTER START/SIT
BAL@BOS Ubaldo Jimenez SP | BAL SIT Doug Fister SP | BOS SIT
CHC@PHI John Lackey SP | CHC START Aaron Nola SP | PHI START
COL@ATL Jon Gray SP | COL START Mike Foltynewicz SP | ATL SIT
DET@CHW Matthew Boyd SP | DET SIT Carson Fulmer RP | CHW SIT
HOU@LAA Charlie Morton SP | HOU START Ricky Nolasco SP | LAA SIT
KC@CLE Danny Duffy SP | KC SIT Carlos Carrasco SP | CLE START
MIL@LAD Zach Davies SP | MIL START Edward Paredes RP | LAD SIT
MIN@TOR Kyle Gibson SP | MIN SIT Marcus Stroman SP | TOR START
NYM@WAS Steven Matz SP | NYM SIT Gio Gonzalez SP | WAS START
PIT@CIN Jameson Taillon SP | PIT START Homer Bailey SP | CIN SIT
SD@MIA Clayton Richard RP | SD START Jose Urena RP | MIA START
SEA@NYY Andrew Albers RP | SEA SIT Masahiro Tanaka SP | NYY START
SF@ARI Chris Stratton RP | SF SIT Patrick Corbin SP | ARI START
TB@STL Chris Archer SP | TB START Lance Lynn SP | STL START
TEX@OAK Tyson Ross SP | TEX SIT Chris Smith RP | OAK SIT

 

More Week 21 Lineup Prep




REAL-TIME FANTASY NEWS

NHL

Blackhawks Bring in Roman Kantserov for Next Season
Mason McTavish

Set to Rejoin Ducks Lineup Sunday
Lukas Dostal

to Remain in Ducks Crease Sunday
Zach Bogosian

Back for Wild Saturday
Jesper Wallstedt

Starting Game 3 Against Avalanche
Joel Eriksson Ek

Not Ready to Return Saturday
Owen Tippett

Won't Play Saturday
Cooper Kupp

a Dynasty Hold into the Start of 2026 Season
Jaylen Warren

a Safe Dynasty Depth Piece with Insurance Upside
Christian McCaffrey

a Risky Dynasty Hold Who Still Exceeds His Trade Value
Brian Thomas Jr.

A Risky Buy-Low with Immense Upside
NFL

Tre' Harris a Dynasty Hold That Could Require Patience
Braelon Allen

Dynasty Stock Takes a Hit After Teammate's Extension
Josh Allen

Still the Top Dynasty QB in his Prime
Kyler Murray

Suddenly a Rising Dynasty Target in Minnesota
Logan Webb

on Track to Start Against Dodgers on Monday
Mike Matheson

Leads by Example in Game 2 Win
Jakub Dobes

Rebounds After Loss Yet Again for Montreal
Rachaad White

Undervalued in Dynasty Leagues Despite a Path to Upside
Alex Newhook

Sets Tone in Big Montreal Victory
Stephon Castle

Overcomes Shooting Struggles Friday
Jake Tonges

Should by Now Be Rostered by Every Kittle Dynasty Manager
Anthony Edwards

Carries Heavy Usage in Defeat
Chig Okonkwo

a Clear Breakout Candidate in Washington
Lukas Dostal

Gets Pulled in Game 3 Loss on Friday
Victor Wembanyama

Joins Historic Playoff Company
Mikal Bridges

Continues Postseason Surge with 23-Point Game
Aaron Jones Sr.

Still a Low-Cost, Short-Term Dynasty Target
Kelly Oubre Jr.

Keeps Scoring Role Alive
Romeo Doubs

' Buy Window Could Soon Be Wide Open
Joel Embiid

Held to 18 Points in 76ers Game 3 Loss
Brett Howden

Notches Sixth Goal of the Postseason
Jalen Brunson

Tallies 33 Points to Take 3-0 Series Lead
VEG

Mitch Marner Hat Trick Helps Vegas Take Series Lead
Pat Bryant

Working With Training Staff This Offseason
Jacoby Brissett

in Communication With Cardinals Despite Skipping Workouts
Daniel Jones

Could Take Part in 7-on-7 Drills at OTAs
Tyler Glasnow

Dodgers Put Tyler Glasnow on Injured List With Back Spasms
Sam Merrill

Iffy for Game 3 on Saturday
Anthony Edwards

Rejoins Starting Lineup Friday
Kevin Huerter

Likely to Remain Out Saturday
Jarred Vanderbilt

Considered Questionable for Saturday
Jalen Williams

Ruled Out for Game 3 Against Lakers
Ayo Dosunmu

Cleared to Play Friday
Anthony Edwards

Available Friday Night
Joel Embiid

is Returning for Game 3 on Friday
Brandon Ingram

Undergoes Heel Surgery
Josh Hart

is Available to Play in Game 3
OG Anunoby

is Downgraded to Out for Game 3 on Friday
Mitchell Robinson

is Returning for Game 3
Mats Zuccarello

Expected to Play Saturday
Joel Eriksson Ek

to Be a Game-Time Decision Saturday
Jonas Brodin

Still Out Saturday
Josh Manson

Could Return Saturday
Kaedan Korczak

Scratched for Game 3 Against Ducks
Radko Gudas

Likely to Remain Out Friday
Sam Carrick

Won't Play Friday
Isiah Pacheco

Can Isiah Pacheco Re-Establish His Dynasty Value in Detroit?
Rico Dowdle

Dynasty Ceiling Limited By Backfield Committee in Pittsburgh
Rashid Shaheed

a High-Risk, High-Reward Buy-Low Candidate for Dynasty Managers
Marcus Mariota

Is Marcus Mariota Worth Stashing as an Injury Replacement in Dynasty Leagues?
Jacoby Brissett

a Clear Sell-High Candidate for Dynasty Managers
Blake Snell

to Make Season Debut for Dodgers on Saturday
Cole Ragans

Royals Place Cole Ragans on Injured List With Elbow Impingement
Sean Strickland

An Underdog At UFC 328
Khamzat Chimaev

Set For UFC 328 Main Event
Tatsuro Taira

Can Become The New Flyweight Champion
Joshua Van

Set For His First Title Defense
Alexander Volkov

Looks To Win Back-To-Back Fights
MMA

Waldo Cortes-Acosta Looks To Extend His Win Streak
Nick Lodolo

Officially Activated, Making Season Debut on Friday
CFB

Walker Lyons Could be Go-To Target for Bear Bachmeier
Austin Reaves

Scores 31 Points in Game 2 Defeat
CFB

Ty Benefield a Potential Game-Changer for LSU Defense
Chet Holmgren

Anchors Thunder Past Lakers in Game 2
CFB

Hayden Lowe Set for Significant Role Following Miami's NFL Departures
CFB

Taylor Wein in Position for Big Season on Oklahoma's Defensive Line
CFB

Rasheem Biles an Instant Impact Player for Texas
Dan Vladar

Looks to Return to Winning Ways Thursday
Roman Anthony

Heading for the Injured List
CFB

Sam Leavitt Expected to Be Full-Go for Fall Camp
Tarik Skubal

Could Return in 4-6 Weeks After Successful Elbow Surgery
Cole Ragans

Royals Hopeful That Cole Ragans Makes his Next Start
Emilio Pagán

Emilio Pagan has Grade 2 Hamstring Strain, Expected to Miss 4-8 Weeks
Joe Ryan

Listed as Scheduled Starter for Saturday Against Cleveland
Tyler Glasnow

Not Expected to Land on the Injured List
Framber Valdez

Suspension Reduced to Five Games
Framber Valdez

Suspended Six Games
Tyler Glasnow

Exits Early on Wednesday With Back Pain
CFB

Brauntae Johnson the Next Star in Notre Dame's Secondary?
CFB

Ethan Barbour a Name to Know in Georgia's Tight End Room
CFB

Payton Pierce Next Up at Linebacker for Ohio State
CFB

Javin Gordon to Play Significant Role for Tennessee?
CFB

Tanook Hines Stepping into WR1 Role for USC
CFB

Rueben Owens II has "Star Potential" in Fourth Campaign
Brandon Woodruff

has Fluid Drained From his Right Shoulder
Brandon Woodruff

to Resume Throwing on Saturday, Return Imminent?
Carlos Correa

to Have Season-Ending Ankle Surgery
Jacob Misiorowski

Listed as Friday's Probable Starter
Logan Webb

Dealing With Knee Discomfort
Carlos Correa

Expected to Miss Significant Time With Ankle Injury
Collin Morikawa

Withdraws From Truist Championship
Xander Schauffele

Carries Elite Form Into Quail Hollow
Hideki Matsuyama

Looks to Bounce Back at Truist Championship
Matt Fitzpatrick

Secures Third Win of 2026 Season
Patrick Cantlay

Continues Playing Well Heading to Truist Championship
Ludvig Aberg

Returns to Action For Truist Championship
Justin Thomas

Searching for Consistency at Quail Hollow
Jordan Spieth

Looks to Break Through at Quail Hollow
Adam Scott

Brings Strong Form to Quail Hollow
Robert MacIntyre

a Steady Option at Truist Championship
Jason Day

Looks to Overcome Approach Struggles at Quail Hollow
Akshay Bhatia

Looks for Complete Game at Truist Championship
Emilio Pagán

Emilio Pagan Headed for Injured List With Hamstring Injury
Justin Rose

to Continue Mid-Season Club Change at Truist Championship
Si Woo Kim

is Back to Peak Form Ahead of Truist Championship
Sam Burns

to Bounce Back at Truist Championship
Cameron Young

Looks to Carry Dominance to Quail Hollow
Rory McIlroy

Returns to Familiar Stomping Grounds This Week at Quail Hollow
Chris Gotterup

Looking to Bounce Back at Quail Hollow
Tommy Fleetwood

Looking For Better Iron Play at Quail Hollow
CFB

Mario Craver Enters No. 1 Wide Receiver Role for Marcel Reed
CFB

LaNorris Sellers a Strong Rebound Candidate in 2026
CFB

Cam Coleman Poised for Monster Year at Texas?
CFB

Will Hammond Pushing to Be Ready for Week 1
Alex Fitzpatrick

Looking to Keep Up Ball-Striking Output at Quail Hollow
CFB

Notre Dame Leads College Football in Returning Snaps
CFB

Two Ole Miss Football Players Arrested, Charged with DUI
Ben Griffin

Looks Solid on the Surface Heading to Charlotte
Chase Elliott

Earns his Second Texas Motor Speedway Victory
Denny Hamlin

Misses Out on Winning at Texas
Alex Bowman

Finishes Third for the Second Week in a Row at Texas
Tyler Reddick

Earns Seventh Top-Five Finish of the Season at Texas
Chris Buescher

Scores his First Career Texas Finish in the Top Five
CFB

Bryce Underwood in Better Situation Entering Sophomore Season
CFB

Nico Iamaleava Emerging as Leader, Playmaker for UCLA
Jack Della Maddalena

Gets Dominated At UFC Perth
Carlos Prates

Shines At UFC Perth
Beneil Dariush

Suffers A First-Round TKO Loss
Quillan Salkilld

Remains Unbeaten In The UFC
Tim Elliott

Drops Decision At UFC Perth
Steve Erceg

Wins Back-To-Back Fights
Ollie Schmid

Suffers First-Round TKO Loss
Marwan Rahiki

Remains Unbeaten
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF