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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

Austin Reaves

Could Command $40M Per Year With New Contract
Jalen Duren

Available to Finish Game 6
Yanic Konan Niederhauser

Not Expected to Be Ready for Start of Next Season
Jalen Williams

Declares Himself Healthy for Conference Finals
Terrence Shannon Jr.

Will Play Friday Night
Kevin Huerter

is Available for Game 6
Duncan Robinson

is Returning for Game 6
Caris LeVert

is Cleared for Game 6 on Friday
OG Anunoby

Practices in Full on Friday
Terrence Shannon Jr.

is Tagged as Questionable for Friday
Blake Snell

Scratched From Start on Friday for Undisclosed Reasons
Luther Burden III

Does Luther Burden III Have WR1 Dynasty Upside in Chicago?
MarShawn Lloyd

Can MarShawn Lloyd Emerge as a Top Dynasty Handcuff Option?
Emanuel Wilson

Can Emanuel Wilson Carve Out a Consistent Role in Seattle?
Max Fried

Heading to Injured List With Elbow Bone Bruise
Jaylin Noel

Playing-Time Outlook in Houston Remains Unclear
Dylan Sampson

Role in Cleveland Looks Secure Heading into 2026
Kirk Cousins

' Dynasty Value Fading Ahead of First Season in Las Vegas
CFB

Julian Sayin Looking To Build Off Of Strong Debut Season
CFB

College GameDay Set for First Three Weeks
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Jeremiah Smith Aiming For Ohio State Receiving Records
CFB

Keshaun Singleton Projects as Auburn's WR1
CFB

Jeremiah Cobb Impresses New Auburn Staff
CFB

Alberto Mendoza Very Likely to Start for Georgia Tech
CFB

Charles Woodson Jr. Commits to Michigan
George Holani

Dynasty Outlook Remains Cloudy
Jordan Westburg

to Have Season-Ending Elbow Surgery
Kendre Miller

Quickly Fading From Fantasy Relevance
Keon Coleman

Is Keon Coleman a Hopeless Dynasty Asset?
Marvin Harrison Jr.

a Buy-Low Candidate in Dynasty Formats
Hollywood Brown

a Cut Candidate in Dynasty Leagues?
Darnell Mooney

Barely Inside Top-100 WR Dynasty Rankings
Melquizael Costa

Set For UFC Vegas 117 Main Event
Arnold Allen

A Favorite At UFC Vegas 117
Christian Kirk

Can Christian Kirk Revive his Career in Bay Area?
Daniel Santos

Set For UFC Vegas 117 Co-Main Event
Brashard Smith

Destined to Become Special Teams Player?
MMA

Dohoo Choi Returns At UFC Vegas 117
Ben Sinnott

Dynasty Value Hindered by Free-Agent TE Addition
Juan Diaz

Set To Make His UFC Debut
Sam Darnold

Should Dynasty Managers Continue to Hold Sam Darnold?
Malcolm Wellmaker

Looks To Bounce Back
Justin Fields

Dynasty Managers Getting Ready to Sell High on Justin Fields?
Christian Edwards

Set For His UFC Debut
Dallas Goedert

a Target for Dynasty Managers in Championship Window?
Modestas Bukauskas

Looks To Get Back In The Win Column
Theo Johnson

Not the Primary Option in New System?
Kyle Monangai

Still Time to Buy Low on Kyle Monangai in Dynasty Leagues?
Tarik Skubal

Resumes Playing Catch, Ahead of Schedule?
Amon-Ra St. Brown

an Unheralded Dynasty Cornerstone
Karl-Anthony Towns

Making an Impact as Playmaker in Playoffs
Jalen Duren

Determined to Improve
Kevin Huerter

Tagged as Questionable for Game 6 Against Cavaliers
Caris LeVert

Considered Questionable for Friday
Duncan Robinson

Iffy for Game 6
Lane Hutson

Contributes Two Assists in Game 5 Victory
Nick Suzuki

Amasses Three Points in Crucial Victory Thursday
Juraj Slafkovsky

Dishes Out Three Assists in Game 5 Win
Carter Hart

Stops 31 Pucks in Series-Clinching Win
Pavel Dorofeyev

Enjoys Second Consecutive Multi-Goal Game
Shea Theodore

Records Two Points in Game 6 Win
Mitchell Marner

Scores Special Goal in Series-Clincher
Ryan Johnson

Takes Over as Canucks GM, Sedins Promoted to Co-Presidents
Drew Helleson

Won't Play Thursday
Radko Gudas

Unlikely to Play Thursday
Jeremy Lauzon

Remains Out Thursday
Mark Stone

Misses Third Consecutive Game
EDM

Kris Knoblauch Fired as Oilers Head Coach
CFB

Virginia Tech Lands Commitment from Four-Star QB Peter Bourque
Byron Buxton

Scratched on Thursday With Hip Soreness
Cal Raleigh

Heading to Injured List With Oblique Strain
Francisco Alvarez

has Knee Surgery, Expected to Miss Eight Weeks
Paul Reed

Makes Big Impact Off the Bench Wednesday
Daniss Jenkins

Contributes 19 Points As Starter
Cade Cunningham

Tallies 39 Points in Losing Effort
Max Strus

Notches 20 Points With Six Triples
Evan Mobley

Close to Triple-Double Wednesday
Jarrett Allen

Records Double-Double in Game 5 Win
Quinn Hughes

Finishes Postseason With 15 Points
Matt Boldy

Posts Two Assists in Season-Ending Loss
Scott Wedgewood

Perfect in Relief Effort
Martin Necas

Records Another Multi-Point Game
Brett Kulak

Sends Avalanche Into Conference Finals
Brayden McNabb

Suspended for One Game
Cal Raleigh

Exits With Apparent Side Injury on Wednesday Night
Juan Soto

X-Rays Come Back Negative on Juan Soto's Ankle
Jacob Misiorowski

Pulled Early With Possible Leg Injury
Juan Soto

Exits Wednesday's Game Early with Ankle Injury
Pete Fairbanks

Returns From Injured List
Christian Yelich

Out With Back Tightness on Wednesday Night
Nathan MacKinnon

Chasing History Wednesday
Ryan Poehling

Won't Be an Option for Game 6
Robby Snelling

Placed on 15-Day Injured List with Elbow Sprain
Francisco Alvarez

Mets Place Francisco Alvarez on Injured List With Torn Meniscus
Max Fried

Dealing With Left Elbow Posterior Soreness
CFB

NFL Veteran Tom Moore Joins Iowa Coaching Staff
CFB

Can Cam Cook Dominate in Return to Big 12?
CFB

ACC, Big 12 Support 24-Team College Football Playoff
CFB

Anthony Colandrea Looking to Elevate Nebraska Back to National Contention
CFB

Kwazi Gilmer Set for Big Impact at Nebraska
Justin Thomas

Trending Well Ahead of PGA Championship Despite Concerning Form
J.J. Spaun

Trending Up Ahead of PGA Championship
Adam Scott

Riding Strong Form Into PGA Championship
Patrick Reed

Looking to Make Another Run at PGA Championship
PGA

Sungjae Im Looks to Build on Strong Finish at Truist Championship
Sam Burns

Must Keep Ball in Play at PGA Championship
Jordan Spieth

Looks to Complete Career Grand Slam at Aronimink
Brandt Snedeker

Not the Best Option for the PGA Championship
Rasmus Hojgaard

a Volatile Option at PGA Championship
Maverick McNealy

Seeking Better Start in Philadelphia
Harry Hall

a Boom-or-Bust Option at Aronimink
Hideki Matsuyama

Attempts to Improve Over 2025 PGA Championship
Scottie Scheffler

Looks to Defend PGA Championship at Aronimink
Nicolai Hojgaard

Wants to Keep Momentum Rolling in Philadelphia
Ben Griffin

Attempting to Bounce Back After Truist Championship
CFB

Transfer Defensive Lineman Devarrick Woods Commits to Clemson
Harris English

Will Need His Putter to Thrive at Aronimink
Akshay Bhatia

Creative Flair Could Show Itself in Philadelphia
Keegan Bradley

Knows the Aronimink Golf Club Well
Si Woo Kim

Struggles at Truist Championship
Gary Woodland

Can Continue Incredible 2026 Season at PGA Championship
Xander Schauffele

In Excellent Form Heading to PGA Championship
Brandon Nimmo

Leaves Game on Tuesday with Apparent Ankle Injury
Jacob Wilson

A's Place Jacob Wilson on Injured List With Shoulder Subluxation
Christian Yelich

Brewers Reinstate Christian Yelich From Injured List
CFB

Isaac Brown Has All-American Upside in 2026
CFB

Nyck Harbor Heading into Breakout Year?
CFB

Notre Dame, USC in Discussions to Resume Rivalry Series
CFB

Jaron-Keawe Sagapolutele Has Eyes on ACC Title
CFB

Ahmad Hardy's Gunshot Wound Not Viewed as Career-Threatening
A.J. Ewing

Mets to Call Up Top Prospect A.J. Ewing
Mookie Betts

is Officially Back on Monday
Khamzat Chimaev

Suffers his First Loss
Sean Strickland

Recaptures Middleweight Title
Tatsuro Taira

Suffers Fifth-Round TKO Loss
Joshua Van

Defends Flyweight Title
MMA

Waldo Cortes-Acosta Drops Decision
Alexander Volkov

Wins Back-To-Back Fights
Shane Van Gisbergen

Dominates Watkins Glen for First Win of 2026
Michael McDowell

Finishes Second for Best Run of the Year At Watkins Glen
Ty Gibbs

Scores New Career-Best Finish of Third at Watkins Glen
Tyler Reddick

Continues His Strong Season With Fifth-Place Run at Watkins Glen
Austin Dillon

Earns his First Top-10 Finish of 2026 at Watkins Glen
CFB

Ahmad Hardy Sustains Gunshot Wound, in Stable Condition
Connor Zilisch

Will Start Fifth in his First Watkins Glen Cup Series Race
Tyler Reddick

Is A Top DFS Option for Watkins Glen Lineups
Christopher Bell

Is Likely to Bounce Back This Week at Watkins Glen
William Byron

Is William Byron Playable in DFS Lineups at Watkins Glen?
Kyle Larson

May have A Positive Day at Watkins Glen
Chase Briscoe

May Compete for A Top-10 Finish at Watkins Glen
NASCAR

A.J. Allmendinger May have Another Solid Outing at Watkins Glen
Ty Gibbs

Should Fantasy Managers Roster Ty Gibbs at Watkins Glen?
Ross Chastain

Is Ross Chastain Worth Rostering for Watkins Glen Lineups?
Austin Cindric

Could Austin Cindric be A Sneaky Tournament Play for Watkins Glen?
Shane Van Gisbergen

Shane van Gisbergen the Heavy Favorite at Watkins Glen
Chase Elliott

Is Chase Elliott a No-Brainer DFS Pick at Watkins Glen?
Chris Buescher

Qualifies 14th at Watkins Glen
Ryan Blaney

Has Upside at Watkins Glen After Signing Contract Extension
Michael McDowell

Still Searching for First Top-Five Finish at Watkins Glen
Carson Hocevar

Is Carson Hocevar Too Aggressive for Road-Course Racing?
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF