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Week 21 Starts & Sits - All Starting Pitcher Matchups

Nick Mariano's recommended fantasy baseball starts and sits for all Week 21 starting pitcher matchups. Unearth potential streamers, two-start SPs and sleepers.

We're on the back nine of August, meaning your path to the championship should be getting clear. Target your needs, whether that be wins, quality starts, ratios or strikeouts, and attack them. To assist your quest for gold, we here at RotoBaller offer our analysis and dynamic pitching scores for each matchup to frame your start/sit decisions. In case you missed it, this is our sixth year now writing this weekly column, helping fantasy baseball managers pick the best pitchers weekly.

Below are the projected starting pitching matchups for Week 21 -- August 19th through August 25th -- which will be updated as rotations are announced and tweaked. This column will be continuously updated and adjusted for any postponements or rotation shuffles, reflecting official beat writer speculation for as many unconfirmed rotation slots as possible.

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 identify some sneaky streams. Let's win some leagues!

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

 

SP Matchups & Start/Sit Recommendations

This weekly piece considers the pitcher’s opponents, their outlook against lefties and righties, 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.

Score values typically range from about 40-60, with higher values being superior. A 50 is the theoretical "Start/Sit" cutoff, but you should use the color-coded scores for valuable context to make your own decisions. Streamers and those relying on counting stats more than all-around ratios can target 48s and 49s, for example. Those set for two-start weeks are highlighted in yellow. Openers will have an asterisk if no "true" starter is announced by team beat writers.

This column will be updated daily as more rotations and starters are announced through August 25th.

More Fantasy Baseball Analysis




POPULAR FANTASY TOOLS

Expert Advice
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Import Your Leagues
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All Pitcher Matchups
Compare Any Players
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REAL-TIME FANTASY NEWS

Aaron Rodgers

Steelers Open to Re-Signing Aaron Rodgers?
Matthew Stafford

X-Rays Come Back Negative
Mark Stone

Extends Goal Streak With Empty-Netter
Nikita Kucherov

Has Four-Point Outing Saturday
David Pastrnak

Records Six Assists in Big Win
Stefan Noesen

to Have Knee Surgery
Carter Hart

Out Week-to-Week
Thatcher Demko

Exits With Injury Saturday
MacKenzie Gore

Yankees Pursuing Trade for MacKenzie Gore
Philip Broberg

Suffers Upper-Body Injury Saturday
Alex Bregman

Cubs Sign Alex Bregman to Five-Year, $175 Millon Contract
Chet Holmgren

Available Sunday
Dennis Schröder

Dennis Schroder Suspended for Three Games for Attempting to Strike Another Player
Kristaps Porzingis

May Return Sunday
Zaccharie Risacher

to Miss Second Consecutive Game Sunday
Kevin Porter Jr.

Considered Probable for Sunday
Aaron Gordon

Likely to Play Sunday
Christian Braun

Considered Probable for Sunday
Spencer Jones

May Miss Another Game Sunday
Jamal Murray

Iffy for Sunday's Action
Josh Hart

Tagged as Questionable for Sunday
Ja Morant

Out Sunday
Michael Porter Jr.

Resting on Sunday
RJ Barrett

Unavailable Sunday
Brandon Ingram

Could Remain Out Sunday
Scottie Barnes

Uncertain for Sunday
Joel Embiid

Questionable to Play Sunday
Tidjane Salaün

Tidjane Salaun Available Versus Jazz
Grant Williams

Ready for Season Debut
Shai Gilgeous-Alexander

Off the Injury Report for Sunday
Kevin Huerter

Active on Saturday Night
Jalen Smith

Back for Bulls Saturday
Freddie Freeman

Withdraws from World Baseball Classic
Chandler Stephenson

Jaden Schwartz Replaces Chandler Stephenson in Kraken Lineup
Brandon Saad

Won't Play This Weekend
Shea Theodore

Returns to Golden Knights Lineup Saturday
Jaccob Slavin

Returns Against Kraken
Travis Konecny

Ruled Out Saturday
Brad Marchand

Misses Saturday's Game
Corey Perry

Available Saturday
William Nylander

Returns From Six-Game Absence
Mark Scheifele

Scores Twice as Jets End Skid
John Carlson

Records Two Assists Friday
Karel Vejmelka

Picks Up Win No. 20
Clayton Keller

Dishes Out Three Assists Friday
Jamie Benn

to Remain Out Saturday
Ilya Mikheyev

Expected to Play Saturday
Max Kepler

Receives 80-Game PED Suspension
CFB

Cam Coleman Visiting Alabama on Friday
Omarion Hampton

Expects to Play Sunday Night
CFB

Eric Singleton Jr. Enters Transfer Portal, Trending to Land at Florida
CFB

NCAA Denies Trinidad Chambliss a Sixth Year of Eligibility
Omarion Hampton

Questionable for Wild-Card Weekend
Kyle Tucker

Mets Remain in Mix for Kyle Tucker
Ketel Marte

Will Remain With Diamondbacks
Rashee Rice

to be Reviewed Under League's Conduct Policy
Daniel Jones

Colts Plan to Re-Sign Daniel Jones
Davante Adams

Off the Injury Report, Will Play Against Carolina
Bo Bichette

Phillies to Meet With Bo Bichette
Rome Odunze

Will Return for Wild-Card Game on Saturday
CFB

DJ Lagway Commits to Baylor
Miami Dolphins

Dolphins Fire Head Coach Mike McDaniel
Sam LaPorta

Plans to be Back for Training Camp
Owen Caissie

Shipped to Miami as Centerpiece of Trade
Edward Cabrera

Cubs Officially Acquire Edward Cabrera From Marlins
Rome Odunze

Plans to Play on Saturday
Edward Cabrera

Cubs Finalizing Deal to Acquire Edward Cabrera From Marlins
New York Giants

Giants "All-In" on Hiring John Harbaugh
CFB

Jackson Arnold Signs with UNLV
CFB

Sam Leavitt Scheduled to Visit Tennessee
New York Giants

John Harbaugh Expected to be Favorite to Become New Giants Head Coach
Baltimore Ravens

John Harbaugh Won't Return as Ravens Head Coach
Bo Bichette

Unlikely to Return to Toronto?
Jordan Love

Ready to Start in Wild-Card Game Against Bears
CFB

Jadan Baugh Staying with Florida for Junior Season
Washington Commanders

Commanders "Mutually" Parting Ways With OC Kliff Kingsbury
CFB

Byrum Brown Officially Commits to Auburn
CFB

Austin Simmons Signing with Missouri

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