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

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.

Editor's Note: Try our exclusive Premium Lineup Tools for free, all throughout the MLB playoffs! Our proprietary Matchup Rating projections, Lineup Optimizer, DFS value picks and more. Sign Up Now!

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