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Week 21 Waiver Wire - Starting Pitchers

Nick Mariano's starting pitcher (SP) fantasy baseball waiver wire targets and adds. Free agent pickups and starting pitcher sleepers for Week 21 of the 2018 MLB season.

I hope you're all ready to do whatever it takes in these last six weeks of the season to win. It might mean dropping a big name for a streamer or, if you still have trades, "losing the trade" to win the league. Don't be shy about your needs and don't be ignorant of how many innings you and your opponents have left in roto formats. Don't overlook how your H2H playoff opponent's rosters are constructed. This is crunch time.

If you want to chat more about additional arms/bats/whatever, you can find me on Twitter @NMariano53 and ask any follow-up questions.

We're using Yahoo ownership levels and cutting things off around 30% this week. Here are my starting pitcher waiver-wire targets for Week 21.

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

 

Starting Pitcher Waiver Wire Targets

Joe Musgrove (PIT – SP/RP): 30% owned

Musgrove finally found some strikeouts alongside his low ratios, as he’s fanned 13 batters across 13 frames in his last two starts. Of course, he had struck out just two in each of his previous three outings, so please mind the reasonable range of outcomes. Luckily for us (and him), he owns a 2.12 ERA/0.88 WHIP over the last 30 days, which makes him 12-team viable no matter how you slice it.

Tyler Glasnow (TB – SP/RP): 26% owned

Glasnow squares off with the Red Sox and impressed more than the box score shows. Though he allowed five runs (four earned) over 6 ⅔ innings, he fought through poor control with three straight walks in the first inning. He didn’t walk another hitter across the next 5 ⅔ IP, which leaves me encouraged. The youngster showed poise and one bad inning against the Sox still leaves him with a 24-to-6 K-to-BB ratio over 18 ⅓ IP as a Ray. He gets to face the Royals for his 25th birthday on Aug. 23, so let’s hope he gives us all something to celebrate.

Anthony DeSclafani (CIN – SP): 26% owned

Hopefully, most of you sharps are part of the 20 percentage points of growth in DeSclafani’s ownership rate this past week. It turns out that yielding two earned over a span of three starts that last at least seven frames is a great thing. Who knew? He was owned in far more leagues two years ago before getting hurt and losing all of 2017, and now the rust may finally be off. He does have a tough assignment at Wrigley Field next, but his performance of late warrants a pickup even if you choose to bench him for that spot.

Matthew Boyd (DET – SP/RP): 23% owned

Boyd is another box-score victim, as he saw three earned runs tarnish his line in the seventh inning. I’m a little surprised he stayed in after giving up a string of hits to open the seventh, and then his bullpen allowed two inherited runners to score. Perhaps if Detroit had a more reliable ‘pen then Boyd would have yet another QS to his name and you’d all be clamoring for his service. As it stands, I get why a guy without a strong track record needs to overperform in order to convince you. But he is throwing his slider at triple the rate of 2017 as he attacks higher in the zone with his fastball. The wins may not come in the Motor City, but he’s worthy of ownership beyond 30%.

Derek Holland (SF - SP): 21% owned

It’s possible that some of you simply streamed Holland against the Mets because they’re the Mets. Although, they’ve actually been one of the best offenses this month...but that’s another story. So for those of you who don’t know what you’ve got on your hands, Holland has become a different pitcher since repositioning himself on the rubber. All of his fielding-independent metrics align with a ~3.00 ERA since then, but those in QS leagues should note he's only gone six full innings (or more) in five of his last 12 starts. But let's end on a high note -- his 27.5% strikeout rate over that span ranks 19th out of 113 starters with >50 IP. Heyo!

Alex Cobb (BAL – SP): 21% owned 

After a brief flash of hope, once he started throwing his splitter again, Cobb had once again faded from fantasy relevance. However, he’s definitely back in the conversation after tossing a complete game against the AL Central-leading Indians. Did you know that he had posted four straight QS against the Rays, Yankees, Red Sox, and Rays again before that? Yes, he’s actually been that good.

And yet, he also hasn’t. I know, what a cheap transition. The facts are that many of you still need wins, which Baltimore is not known for. Many of you also need strikeouts, which doesn’t jive with Cobb’s 5.44 K/9 in those last seven outings, but the 3.44 FIP and 4.06 xFIP make more sense. And while he's shown he can handle the AL's best, his having to face the Yankees again this week isn't what we want to target. I won't hate you for adding him, but I'd really look elsewhere first.

Austin Gomber (STL – SP/RP): 20% owned

Gomber hadn’t allowed an earned run in either of his last two starts and nearly pulled off his magic again on Monday. He’d fired off four scoreless frames against the Dodgers before they finally got him for two runs in the fifth. The Cardinals were up 3-2 at that point, but the bullpen couldn’t hold on for his third straight win. I'll be the first to admit that the southpaw's 36-to-23 K-to-BB ratio is terrifying, but he's gone about as far as a 7.1% K-BB% is going to take you. Tread carefully, I'd likely add his teammate further down the list first, but I also respect anyone chasing a hot hand.

Brett Anderson (OAK – SP): 16% owned

After twirling 7 ⅔ scoreless innings against the Mariners in his previous start, Anderson needed just 93 pitches to blank the Rangers over seven innings of work. He allowed just one hit and one walk, which brings his post-injury WHIP below 1.00 and his ERA down to 2.11. That said, the biggest surprise might be his six strikeouts, as he had punched out just 19 across 40 innings prior to Tuesday. No one will try to convince you that he’s an ace incapable of surrendering a run, but don’t underestimate the power of Oakland’s spacious park, their top-10 defense (per Fangraphs' DEF chart) and Anderson’s own abilities when healthy. He’s just never been healthy for very long, so enjoy it while it lasts!

Jordan Zimmermann (DET - SP): 12% owned

Zimmermann looked healthy in Tuesday’s start as he limited the Cubs to just one run, an Anthony Rizzo homer, over six innings of work. We’ve been fooled into thinking he’s healthy and “back” before in ‘18, only to see him crumble again. Whether it was just a loss of command or pain from his constant neck/shoulder injuries, I don’t know. What I do know is he looked strong here and gets to face the White Sox next, making him a decent streamer.

Touki Toussaint (ATL - SP): 11% owned

Toussaint will get another chance against the Marlins on Thursday, as the rookie swiftly sees another opportunity to start in the bigs. He cruised through six innings in his debut against the fish and shouldn’t be viewed any less favorably in this spot. My hope is to see more than six swinging strikes on 82 pitches and perhaps some clear pitch-mixing changes compared to his first outing. Though he could pitch the exact same sequence and I’d still want to stream him for this matchup.

Adam Plutko (CLE - SP): 8% owned

Months ago we had Plutko and Shane Bieber battling for one rotation spot, but Trevor Bauer’s injury combined with Cleveland’s cushy lead in the AL Central means both should finish out the regular season in the rotation. Plutko bought some leash by tossing seven innings of three-run ball against Baltimore in his first start back, though he had some misfortune there. He allowed only four baserunners that day, but three would score on one swing from Jonathan Villar in the third inning. The longball has been an issue for the 26-year-old righty, as he’s given up as many dingers (12) as walks issued across 48 ⅔ IP thus far. At least he has good control, right? He’ll need all of it at the ready against Boston on Thursday.

Daniel Poncedeleon (STL – RP): 5% owned

The Cardinals have sent Luke Weaver to the bullpen as their starting rotation makes the slow transition to elite (?) relief unit. This means there’s a vacant rotation slot that Poncedeleon has been awarded, which he turned into a solid outing on Tuesday night. After dazzling us with seven no-hit innings in his first MLB start, he struck out eight Dodgers while yielded one run over four innings. The K's are especially encouraging after he had rung up 10 batters in 17 ⅔ overall innings prior to Tuesday, but it makes sense given his wicked 26.3% strikeout rate over 92 Triple-A innings this year. I know four innings meant no win, but getting to 90 pitches in an effective manner is a win in its own right moving forward. I'd be fine penciling him in as my SP5/6 heading into September.

 

More Waiver Wire Pickups and Streamers




REAL-TIME FANTASY NEWS

Michael Harris II

Dealing With Back Tightness, Not Believed to be Serious
Byron Buxton

Suffers Shoulder Contusion After Colliding With the Wall
Sacramento Kings

Kings Want to Trade Their Larger Contracts
Chicago Bulls

Darius Acuff Jr. Works Out for Bulls
Jaime Jaquez Jr.

Could Get Traded
Marcus Johansson

Returning to Europe
Thomas White

Likely to Miss Rest of Season With Shoulder Capsular Sprain
Mitchell Robinson

is Upgraded to Available for Game 2
Cole Caufield

Earns Lady Byng Trophy
Nick Suzuki

Lands Selke Trophy
Deebo Samuel Sr.

Does Deebo Samuel Sr. Carry Buy-Low Appeal for Win-Now Dynasty Managers?
Elic Ayomanor

Is Elic Ayomanor Still Worthy of a Dynasty Roster Spot?
Jose Altuve

Astros Reinstate Jose Altuve From the Injured List
Tyler Warren

Does Tyler Warren Have Dynasty TE1 Upside?
Jonathon Brooks

Entering 2026 as a Buy-Low Dynasty Candidate?
Tyler Allgeier

Remains a Dynasty Buy-Low Candidate
Quentin Johnston

Is Quentin Johnston Undervalued by Dynasty Managers?
CFB

Reed Harris Hoping to Fill Void in Arizona State Receiving Room
CFB

Nick Marsh Gearing Up for Breakout
CFB

Drew Mestemaker Looking to Catapult Oklahoma State Offense in 2026
CFB

Rocco Becht Brings Experience to New-Look Nittany Lions
CFB

Can Trey White, Adam Trick Keep Texas Tech's Defensive Front Elite?
CFB

Devon Dampier is Key to Success for Morgan Scalley in Year 1
Aaron Judge

Yankees Officially Place Aaron Judge on Injured List With Fractured Rib
Francisco Lindor

Expected to Return in "About a Couple Weeks"
J.J. McCarthy

Fighting Uphill Battle to Win Starting QB Job?
Brian Thomas Jr.

Improving his Chemistry With QB
Malik Willis

' Chemistry With New WRs is a "Work in Progress"
Baker Mayfield

"Not Anywhere Close" to New Contract With Buccaneers
Chris Rodriguez Jr.

Sitting Out of OTAs
Isaiah Likely

Carries Significant Dynasty Upside into First Season in New York
Emanuel Wilson

Dynasty Outlook Clouded by Depth Chart Uncertainty in Seattle
Jaylin Noel

Is Jaylin Noel Still Roster-Worthy in Dynasty Formats?
Dylan Sampson

Carries Dynasty Upside Despite Current Place on Depth Chart
George Holani

Is George Holani Worthy of a Deep-League Dynasty Roster Spot?
Tank Bigsby

Could See an Increase in Snaps in 2026
Corey Seager

Rangers Activate Corey Seager From the Injured List
Gabriel Bonfim

Set For UFC Vegas 118 Main Event
Belal Muhammad

In Dire Need Of Win
Kendre Miller

Is it Time to Move on From Kendre Miller in Dynasty Leagues?
Edmen Shahbazyan

An Underdog At UFC Vegas 118
Shayne Gostisbehere

Dishes Out Two Power-Play Assists in Comeback Win
Hollywood Brown

a Dynasty Fade in New-Look Eagles Receiver Room
Brendan Allen

Looks For His Third Win In A Row
Seth Jarvis

Ties Finals With Power-Play Goal
Mark Stone

Scores Sixth Playoff Goal in Overtime Defeat
Tom Nolan

Searches For His Fifth Consecutive Win
Darnell Mooney

Facing Further Dynasty Decline
Mitch Marner

Records Two Assists in Game 2 Loss
Farés Ziam

Fares Ziam A Favorite At UFC Vegas 118
Brett Howden

Matches Franchise Record With Another Productive Outing
Christian Kirk

Unlikely to Regain Dynasty Value in San Francisco
Brayden McNabb

Hospitalized After Taking Puck to Face
Aaron Judge

Diagnosed with Stress Fracture, Out 4-6 Weeks
Shohei Ohtani

has "Small" Blister, a "Non-Issue" for his Pitching Starts
Brent Rooker

Out on Thursday Due to Knee Soreness
Frederik Andersen

Hurricanes Retain Confidence in Frederik Andersen
Vincent Trocheck

Maple Leafs Interested in Vincent Trocheck
Dylan Larkin

Requests Trade From Red Wings
Corey Seager

Expected to Return This Weekend
Lucas Erceg

Royals to Mix and Match in Ninth With Lucas Erceg Struggling
Jonathan Toews

Expected to Retire
Anders Lee

Set to Hit Open Market
TB

Jon Cooper Wins First Jack Adams Trophy
De'Aaron Fox

Struggles Again Wednesday Night
Dylan Harper

Turns Heads in Finals Opener
Stephon Castle

Close to Double-Double in Game 1 Loss to Knicks
Victor Wembanyama

Notches 26 Points in Finals Debut
Josh Hart

Grabs 15 Rebounds in Game 1 Win Over Spurs
Karl-Anthony Towns

Opens Finals With Double-Double
Jalen Brunson

Scores Game-High 30 Points in Finals Opener
Aaron Judge

to Undergo Additional Imaging
Ketel Marte

Out on Wednesday With Back, Hamstring Injuries
Mitchell Robinson

is Available for Game 1 on Wednesday
Kawhi Leonard

Unlikely to be Traded
Chicago Bulls

Bulls Host Potential Lottery Picks for Workout
Washington Wizards

Wizards Considering Trading Down in Draft
Corbin Burnes

has Teres Major Strain, Unlikely to Return Until September
Rickie Fowler

Looks To Continue Resurgent Season At Memorial
CFB

Can Eric Singleton Jr. Fully Break Out at Third School?
CFB

Katin Houser Steps into QB1 Role for Illinois
CFB

Savion Hiter an Immediate Impact Freshman for Michigan
CFB

Isaiah Horton Set to Take Over KC Concepcion's Role
CFB

UCLA Transfer Karson Gordon Signs with Austin Peay
CFB

Will Muschamp Bringing New Intensity to Texas Practices
Gary Woodland

Brings Boom-or-Bust Potential to Memorial
Jordan Spieth

Still Searching for a Breakthrough
Alex Smalley

Brings Elite Form to Memorial Tournament
Justin Rose

Looks to Recapture Memorial Tournament Success
Cameron Young

Looks to Get Back to His Contending Ways at Murifield Village
Chris Gotterup

Needs to Find Fairways at Muirfield Village
Si Woo Kim

Looks to Stay Hot at Memorial Tournament
Matt Fitzpatrick

Positioned for Success at Muirfield Village
Jalen Chatfield

Records Two Assists in Tuesday's Loss
Keegan Bradley

Looking for Another Strong Finish at Muirfield
Nikolaj Ehlers

Nets Two Goals in Game 1 Loss to Golden Knights
Shea Theodore

Notches Three Points in Game 1 Win
Brayden McNabb

Sets Up Three Goals in Game 1 Win Over Hurricanes
Justin Thomas

is an Exciting Play This Week in Ohio
Brett Howden

Starts Finals With Multi-Point Effort
Scottie Scheffler

Looks to Win Memorial Tournament for Third Consecutive Year
Tomas Hertl

Scores Game-Winner in Finals Opener
Rory McIlroy

Looking for Better Performance at Muirfield Village
Drake Baldwin

Could Return During Braves Next Homestand
Garrett Crochet

Diagnosed With Low-Grade Lat Strain
Russell Henley

Coming to Ohio on the Heels of Latest Victory
Tommy Fleetwood

Looking for Better Iron Play at Memorial Tournament
Patrick Cantlay

Looks to Continue Dominance at Muirfield Village
Ludvig Aberg

a Great Fit for Muirfield Village
Isaiah Hartenstein

Hopeful to Stay with Oklahoma City
Luguentz Dort

Wants to Remain with Thunder
Mitchell Robinson

is Questionable for Game 1
Moussa Diabaté

Moussa Diabate Has Contract Guaranteed for 2026-2027 Season
Oso Ighodaro

Gets Guaranteed Contract for Next Season
Aaron Judge

Out on Tuesday With Rib/Shoulder Injury
Josh Hader

Set to Return from Injured List on Tuesday
CFB

SEC Coach Calls Buster Faulkner a "Home-Run Hire"
CFB

Auburn a Sleeper in the SEC Under Alex Golesh?
CFB

Noah Fifita Primed for Strong 2026 Campaign
CFB

Oregon Assistant Coach Charged with DUII, Reckless Driving
CFB

Tight End Nick Pollack Commits to Clemson
Akshay Bhatia

Needs the Driver to be True in Ohio
Aaron Rai

Primed to take on the Memorial Tournament
J.J. Spaun

Rebounded at Charles Schwab Challenge
Xander Schauffele

One to Watch This Week in Ohio
Elly De La Cruz

to Miss 2-4 Weeks of Action
Chase Burns

is Scratched Due to Illness
Deiveson Figueiredo

Suffers Second-Round Submission Loss
Song Yadong

Gets Second-Round Submission Win
Zhang Mingyang

Suffers Back-To-Back Losses
Alonzo Menifield

Gets Back In The Win Column
Tallison Teixeira

Suffers First-Round Knockout Loss
Sergei Pavlovich

Scores First-Round Knockout Win
Cameron Smotherman

Suffers Third Loss In A Row
Kai Asakura

Earns His First UFC Win
Denny Hamlin

Earns the first Nashville Cup Series Victory of his Career on Sunday
Christopher Bell

Finishes as the Runner-Up at Nashville
Chase Briscoe

Earns First Career Podium Finish at Nashville
Ryan Blaney

Scores A Solid Top-10 Finish at Nashville
Kyle Larson

Top-10 Streak at Nashville Ends after Late Flat Tire Spin
Tyler Reddick

Is One of the Top Favorites to Win at Nashville
Kyle Larson

May Continue his Top-10 Consistency at Nashville this week
Christopher Bell

Is One of the Top Competitors for the Win at Nashville
Chase Briscoe

Is A Must Start for Nashville DFS Lineups
Chase Elliott

has Plenty of Upside for Nashville DFS Lineups
William Byron

Is William Byron A Playable DFS Option for Nashville Lineups?
Carson Hocevar

Is Likely to have Another Solid Result at Nashville
NASCAR

Should Fantasy Players Roster Bubba Wallace at Nashville?
Chris Buescher

Is A Decent All-Around DFS Option for Nashville Lineups
Daniel Suarez

is Likely to Drop Positions during the Cracker Barrel 400
Denny Hamlin

Could Denny Hamlin Dominate at Nashville?
Ryan Blaney

Is a DFS Tournament Option at Nashville
Ty Gibbs

Don't Overlook Ty Gibbs at Nashville
Joey Logano

Could Show Life at Nashville
Ross Chastain

Needs a Good Run at Nashville
Chet Holmgren

Fails to Step Up in the Season Finale
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF