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Week 19 Starts & Sits - All Starting Pitcher Matchups

Nick Mariano's recommended fantasy baseball starts and sits for all Week 19 starting pitcher matchups. Unearth potential streamers, two-start SPs and sleepers.

August brings fantasy baseball's marathon miles to the forefront. Don't wait until September's sprint to the finish to create a path to the podium. Monitor your innings and make those pitching decisions count. To help your quest for glory, 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 19 -- August 5th through August 11th -- 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!

Featured Promo: Save 50% the regular price with discount code SPRING, for a limited time. Exclusive access to our Team Sync platform, DFS cheat sheets, Lineup Optimizers, betting/prop picks, and exclusive content from Nick Mariano and Eric Cross! GAIN ACCESS NOW

 

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 4th.

More Fantasy Baseball Analysis




REAL-TIME FANTASY NEWS

Julian Champagnie

Notches 22 Points With Four Triples Tuesday
Trevor Etienne

Could Still Find Dynasty Relevance After Quiet Rookie Season
Stephon Castle

Leads Spurs in Scoring Tuesday Night
Rickie Fowler

Looks to Regain Momentum at Colonial
Victor Wembanyama

Struggles in Game 5 Loss to Thunder
Bam Knight

Dynasty Value Has Run Dry in Crowded Running Back Room
Alex Caruso

a Difference-Maker Again in Game 5
Pierceson Coody

Looking to Stay Hot at Colonial
Jared McCain

Produces 20 Points in First Playoff Start
Mac Jones

and 49ers Agree to a Revised Contract
Shai Gilgeous-Alexander

Scores Game-High 32 Points in Game 5 Win
Martin Necas

Collects an Assist in Game 4 Loss to Golden Knights
Gabriel Landeskog

Scores Only Avalanche Goal in Season-Ending Loss
Carter Hart

Finishes Series-Clincher With 20 Saves
Dylan Coghlan

Continues Unlikely Success Story
Cole Smith

Scores Series-Clincher Tuesday Night
Mark Stone

Nets Another Goal as Golden Knights Finish Off Avalanche
Ludvig Aberg

Looking to Exchange Momentum for a Victory in Fort Worth
Stephan Jaeger

Trending Upward as PGA Heads to Fort Worth
Max Homa

Comes Off Awful Putting Performance at PGA Championship
Tony Finau

Faces Different Test at the Colonial
Robert MacIntyre

Seeks Better Beginning in Fort Worth
Tom Hoge

Ups and Downs Could Continue at Colonial
Brian Harman

Not Having the Best Golf Season in 2026
Austin Eckroat

Struggling Too Often Heading to Charles Schwab Challenge
Zach Bauchou

Tries to Keep Momentum Rolling at Colonial
Keegan Bradley

Looking to Rebound at Colonial
Tory Horton

Could Do Some Stuff "Toward the End of Spring"
Patrick Mahomes

Takes Part in First OTA Practice on Tuesday
Los Angeles Chargers

Derwin James Jr. Becomes Highest-Paid Safety for the Second Time in his Career
Chris Brooks

Emerging as Top Handcuff to Stash?
MarShawn Lloyd

Sees Short-Term Value Soar
Jared McCain

Moves into Starting Five
Boston Celtics

Joe Mazzulla Wins Coach of the Year
Jalen Williams

is Ruled Out for Game 5 on Tuesday
Bucky Irving

is Expected to be Ready for Training Camp
Zion Williamson

to See More Versatile Role
Parker Washington

Jaguars Think Parker Washington Can Replicate Second-Half Production
Cleveland Cavaliers

Kenny Atkinson to Remain Cavaliers Head Coach Next Season
Josh Jacobs

Arrested on Five Charges, Booked Into Jail
Claude Giroux

Planning to Return for 20th NHL Campaign
Josh Sweat

Cardinals Receiving Trade Calls on Josh Sweat
Carter Hart

Aiming for Sixth Consecutive Win Tuesday
Tetairoa McMillan

Working With the Training Staff on Tuesday
Evgeni Malkin

Inks New One-Year Deal With Penguins
Mackenzie Blackwood

in Net for Game 4 Against Golden Knights
Valeri Nichushkin

a Game-Time Call Tuesday
Nathan MacKinnon

Will Suit Up Tuesday
Jerome Ford

Is it Time for Dynasty Managers to Drop Jerome Ford?
John Metchie III

Poised for Breakout Season with New Team in 2026?
Jalen Milroe

Is Jalen Milroe Still Worth Stashing in Dynasty Formats Entering 2026?
Kyle Pitts Sr.

Is Kyle Pitts Sr. a Dynasty Sell-High Candidate Coming Off Breakout Season?
Nico Collins

Agrees to Contract Adjustment with Texans
Chris Brooks

Carries Buy-Low Dynasty Appeal into 2026
Ben Griffin

Looking to Repeat This Week at Colonial
Rasmus Hojgaard

a Player to Avoid at Charles Schwab Challenge
Hideki Matsuyama

Needs Solid Driving Week at Charles Schwab Challenge
Justin Thomas

Trending Well Ahead of Charles Schwab Challenge
Akshay Bhatia

Lacking Driving Prowess Needed at Colonial Country Club
NFL

NFL Unlikely to Expand to 18 Regular-Season Games by 2027
Sahith Theegala

Searching For Swing at Charles Schwab Challenge
Lamar Jackson

in Attendance at OTAs This Week
CFB

DJ Lagway Looking to Rebound at Baylor
CFB

Josh Hoover Tasked With Leading Indiana Back to the Playoffs
CFB

Braylon Staley the Next 1,000-Yard Tennessee Receiver?
CFB

Ahmad Hardy's Return Timeline Remains Unclear
Evan Mobley

Finishes Season-Ending Loss With 15 Points
James Harden

Wants to Stay in Cleveland
Donovan Mitchell

Remains Committed to Cavaliers
Mikal Bridges

Cools Off in Game 4 Against Cavaliers
OG Anunoby

Active on Both Ends in Blowout Win
Karl-Anthony Towns

Leads Knicks in Scoring During Series-Clincher
Jalen Brunson

Named Eastern Conference Finals MVP
Ivan Demidov

Contributes an Assist in Losing Effort
Lane Hutson

Records Power-Play Goal in Game 3 Loss
Frederik Andersen

Enjoys Another Easy Night at the Office in Game 3
Shayne Gostisbehere

Scores First Postseason Goal
Taylor Hall

Ends Four-Game Goal Drought
Andrei Svechnikov

Scores Game 3 Winner in Overtime
Gage Jump

Athletics to Promote Top Pitching Prospect Gage Jump to Major Leagues
Tatsuya Imai

Two Relievers Combine to No-Hit the Rangers on Monday
Dennis Schröder

Dennis Schroder is Ruled Out for Game 4 on Monday
Michael Porter Jr.

Nets Could Trade Michael Porter Jr.
Ajay Mitchell

is Ruled Out for Game 5
Valeri Nichushkin

Nathan MacKinnon, Valeri Nichushkin Uncertain for Game 4
Oliver Kapanen

Sitting as Healthy Scratch Monday
Max Domi

Out Indefinitely Due to Offseason Surgery Complications
Dylan Cease

Heading to Injured List With Hamstring Injury
Daniel Suarez

Wins at Charlotte in Rain-Shortened Coca-Cola 600
Christopher Bell

Finishes as the Runner-Up in the Coca-Cola 600 at Charlotte
Denny Hamlin

Falls Short of Winning and Places Third at Charlotte
Tyler Reddick

Places Fourth After Leading Laps at Charlotte
Kyle Larson

Strong and Consistent Day Ends in Fifth at Charlotte
Dylan Cease

Removed From Sunday's Start With Hamstring Discomfort
Vladimir Guerrero Jr.

Exits Sunday's Game Early with Elbow Contusion
MLB

Reds-Cardinals Game Postponed on Sunday
Edward Cabrera

Cubs Place Edward Cabrera on the 15-Day Injured List
Denny Hamlin

the Favorite to Win at Charlotte
Tyler Reddick

on Pole for Coca-Cola 600
Christopher Bell

Could Break Out of Slump
Kyle Larson

May have A Solid Day at Charlotte
Ryan Blaney

Is A DFS Risk for Charlotte Lineups
William Byron

Could have A Great DFS Performance at Charlotte
Chase Briscoe

Is A Solid Tournament Option for Charlotte DFS Lineups
Ty Gibbs

May not be Worth his Salary for Charlotte DFS Lineups
Chris Buescher

May be a Sneaky Tournament Option for Charlotte Lineups
NASCAR

Bubba Wallace Has Favorable Upside for Charlotte DFS Lineups
Ross Chastain

Is A Strong Addition for DFS Lineups at Charlotte
Austin Dillon

Should Fantasy Managers Roster Austin Dillon for Charlotte DFS Lineups?
Chase Elliott

Should Be Strong at Charlotte
Carson Hocevar

Confident for Coca-Cola 600
Corey Heim

a Chalk DFS Pick at Charlotte
Michael McDowell

Is Michael McDowell A Tournament Option for Charlotte Lineups?
MLB

Orioles-Tigers Game Postponed on Saturday
MLB

Rays-Yankees Postponed on Saturday
Mickey Moniak

Heads to Injured List With Ankle Sprain
Jackson Merrill

has Sore Ribs, Expected to Avoid Injured List
CFB

Jaron-Keawe Sagapolutele Looking to Take Sophomore Leap
CFB

Jadan Baugh Primed to Lead Florida Offense in 2026
CFB

LSU Hires Ed Orgeron As Special Assistant
CFB

North Carolina and South Carolina Cancel Home-And-Home Series
CFB

Confidence High in Mississippi State's Kamario Taylor
MLB

Reds-Cardinals Game Postponed on Friday
Trevor Story

has Hernia Surgery, Expected to Miss 6-10 Weeks
Roman Anthony

Dealing With Sprained Ligament in his Finger
Ronald Acuña Jr.

Ronald Acuna Jr. Exits Early, X-Rays Come Back Negative
Robby Snelling

Will Undergo Tommy John Surgery
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