TAP FOR 6 MONTHS OF PREMIUM FREE 💰
X
Lost password?

Don't have an account?
Gain Access Now

X

Receive free daily analysis

NFL
NBA
NHL
NASCAR
CFB
MLB
MMA
PGA
ESPORTS
BETTING

Already have an account? Log In

X

Forgot Password


POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

Peter O'Brien (1B/OF, MIA) - Week 26 Waiver Wire Pickups

BALLER MOVE: Add in 14+ Team Leagues

OWNED IN: 4% of leagues

ANALYSIS: Miami Marlins outfielder/first baseman Peter O'Brien completely evaded my radar until I spun up my usual tools for finding and picking out waiver wire adds. However, while I usually would just chalk up a line like .294/.375/.647 and three dingers over his first 40 major-league plate appearances since 2016 as beginner’s luck, I was intrigued enough to dive in. A 28-year-old rookie on his seventh organization, O’Brien had six home runs on just 79 plate appearances heading into the cup of coffee he’s received with Miami. The power he’s shown all season, 30 homers between Double and Triple-A, was expected. He’s a big swinger who strikes out frequently. In his first two tastes of the bigs, he was teed up to the tune of 41.7% and 40.3%, and neither of those numbers were terribly unexpected. He’s the spiritual successor to Matt Reynolds, a guy who can send the ball to the moon, take a walk, and set single season strikeout records. With a little more playing time, he might compete with Joey GalloYonder Alonso, and Chris Davisfor the three true outcomes trophy.

There’s a little extra team-building theory to this pick too, so allow me to offer some additional thoughts. H2H, whether your league is roto or points, is all about plugging in as many at-bats as possible that can be productive and not harmful. Many H2H leagues include deductions and penalties for strikeouts, grounding into double plays, leaving men on base, and other negative outcomes. But home runs, steals, and other extra base hits bring nice bonuses. So you want to fill your lineup with a mix of guys who can produce bonus points and players who are steady enough to weather the kinds of dramatic swings players like Gallo or Alonso can be subject to.

Which brings us back to O’Brien. He is indeed a huge cutter who has made soft contact on, and I swear this is true, just 4.3% of contact. When he hits a ball, he freaking hits a ball. But there have been a few changes which might be indicative of good things to come. For one, while he’s still striking out around 30%, that represents a major improvement. Furthermore, it’s been a consistent change all year. He’s swinging less, which has cut his rate of swings on outside pitches by more than 15% from his career average and his swinging strike rate nearly in half. For a guy with moonshot power and a swingers mentality, these are the first two numbers to drop when a guy shifts from a scrub to an asset. And sure enough, his contact rate is up more than 10% over his career best. And as we’ve clearly established, when O’Brien hits the ball, he hits the ball.


Check out RotoBaller's entire fantasy baseball waiver wire pickups and sleepers list, updated daily!

POPULAR FANTASY TOOLS

Expert Advice
Articles & Tools
Import Your Leagues
Draft Rankings
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Norman Powell

Considered Week-to-Week
Jabari Smith Jr.

to Miss Game Vs. Heat
Kristaps Porzingis

Questionable Vs. Lakers
Draymond Green

On Track to Play Saturday
Julian Strawther

Spencer Jones, Julian Strawther Good to Go Vs. Thunder
Jamal Murray

Jalen Pickett Cleared To Play Friday
Tyler Soderstrom

Off to Strong Start This Spring
Konnor Griffin

Pirates Expected to Approach Konnor Griffin With Long-Term Extension This Spring
Dejounte Murray

Won't Play on Saturday
Trey Murphy III

is Ruled Out for Saturday's Game
Yordan Alvarez

to Make Some Starts in Left Field
Caleb Martin

is Unavailable on Friday
Klay Thompson

is Resting on Friday
P.J. Washington

to Remain Out on Friday
Josh Jung

Expected to Return on Sunday
Andrew Benintendi

Scratched Due to Side Soreness
Orion Kerkering

to Throw on Saturday
Grae Kessinger

Suffers Knee Injury on Friday
Jake Meyers

Scratched Due to Back Spasms
Harrison Bader

Exits with Thumb Injury
Tyler Seguin

Offically Out for Rest of Season
Zach Benson

Could Be an Option Friday
Tom Wilson

Good to Go Friday
John Carlson

to Miss At Least Two More Games
Connor Hellebuyck

Set to Start Friday Night
Samuel Girard

Evaluated for Lower-Body Injury
Hyeseong Kim

Rebuilt Swing Already Generating Results
Bailey Ober

Focusing on Mechanics in Camp
Devin Williams

Sees Struggles Continue in Spring Debut
Rafael Devers

Scratched With Hamstring Tightness
Marcelo Mayer

Stronger and Faster Entering 2026 Season
Kutter Crawford

Set for Live Batting Practice on Friday
Shane Baz

Strikes Out Four in Spring Debut on Friday
Blake Snell

Making Progress, Will be "Hard" to be Ready for Opening Day
Corey Seager

Scratched Due to Illness
Elly De La Cruz

Feels Fully Healthy This Spring
Stephen Kolek

Being Shut Down With Grade 1 Oblique Strain
Lone'er Kavanagh

Set For UFC Mexico City Main Event
Brandon Moreno

Looks To Bounce Back
Samuel Basallo

Thinks he Can Play This Weekend
David Martinez

Set For UFC Mexico City Co-Main Event
Marlon Vera

In Dire Need Of Victory
King Green

Looks To Win Back-To-Back Fights
Daniel Zellhuber

Aims To Snap Two-Fight Skid
Sergei Bobrovsky

Sharp In Victory
Brad Marchand

Scores Two Goals in Victory
Noah Dobson

Scores Twice in Overtime Loss
Matthew Schaefer

has Two-Goal Game
Felipe Bunes

Looks To Get Back In The Win Column
Édgar Cháirez

Edgar Chairez A Favorite At UFC Mexico City
George Pickens

Cowboys Not Interested in Trading George Pickens
Cedric Coward

to Miss Sixth Straight Game
Taj Gibson

Agrees to Deal With Grizzlies
Memphis Grizzlies

Kyle Anderson Agrees to Buyout, Plans to Join Timberwolves
Jabari Smith Jr.

Exits with Right Ankle Injury
Norman Powell

Leaves Game with Groin Injury
Alexandre Sarr

Considered Week-to-Week
Lauri Markkanen

to Miss At Least Two Weeks
Matt Boldy

Makes History With Another Four-Point Performance
Jake Guentzel

Sets Up Three Goals Thursday
Leon Draisaitl

Tallies Four Points Against Kings
Joel Kiviranta

Sustains Undisclosed Injury Thursday
Filip Gustavsson

Makes Late Exit Thursday
Joel Armia

Sustains Upper-Body Injury
Drew Doughty

Exits Loss With Lower-Body Injury
Jordan Binnington

on Non-Roster List
Mackenzie Blackwood

Starting in Net Versus Wild
Jaxson Hayes

Good to Go Thursday Night
Robert Williams III

Donovan Clingan Out, Robert Williams III and Yang Hansen Cleared
Patrick Williams

Jalen Smith, Patrick Williams Out At Least One Week
Dylan Holloway

Rejoins Blues Lineup Thursday
Simon Edvinsson

Back in Red Wings Lineup Thursday
Ashton Jeanty

Not in Line for Workhorse Role in 2026?
Anthony Richardson Sr.

Colts Give Anthony Richardson Sr. Permission to Seek a Trade
Kyler Murray

Prefers to be Released
Derek Carr

"Strong Belief" That Derek Carr is "Very Serious" About Unretiring
Andy Dalton

Is Andy Dalton Available for a Trade?
Keith Mitchell

Making The Comfortable Return to PGA National
CFB

Chandler Morris Suing NCAA for Seventh Year of Eligibility
Chris Kirk

Searching for a Spark at Cognizant Classic
Brooks Koepka

Making Third PGA Tour Start at Cognizant Classic
Mackenzie Hughes

a Steady Option at Cognizant Classic
Seamus Power

Seeking More Green in Florida
PGA

Haotong Li Back From a Break as Florida Stretch Starts
Stephan Jaeger

Trying to Put Four Rounds Together in Florida
PGA

Nico Echavarria Again Attempting to Make the Weekend
Patrick Fishburn

Looking for a Spark at Cognizant Classic
Blades Brown

Set for Cognizant Classic Debut
Michael Thorbjornsen

Looking to Bounce Back at Cognizant Classic
Maxx Crosby

Raiders Expect Maxx Crosby to Return
Billy Horschel

Looks to Improve Season at Cognizant Classic
Kyle Pitts Sr.

Falcons Place Franchise Tag on Kyle Pitts Sr.
Joe Highsmith

Returns to Defend at Cognizant Classic
Quinshon Judkins

Out of Walking Boot, Will be Ready for Training Camp
Breece Hall

Jets Will Use Franchise Tag on Breece Hall if Extension isn't Reached
Joel Dahmen

Needs Better Consistency Heading Into The Florida Swing
Daniel Berger

Looks to Improve Putting as PGA Tour Begins Its Florida Swing
Kirk Cousins

Falcons Plan to Release Kirk Cousins
Zach Ertz

Plans to Return for 14th Season
Davis Thompson

Struggling to Find Birdies as Florida Looms
Tom Kim

Not Quite Cutting It in 2026
Nicolai Hojgaard

Wants to Build Momentum from Scottsdale
Christiaan Bezuidenhout

Returns After Extended Break for Florida Event
CFB

Gunner Rivers Follows His Father, Commits To North Carolina State
Will Zalatoris

Set to Make Tournament Debut at Cognizant Classic
Rasmus Hojgaard

Trending Up at the Cognizant Classic
Anthony Hernandez

Suffers Third-Round TKO Loss
Sean Strickland

Gets Back In The Win Column
Kyle Pitts Sr.

Falcons Planning to Use Franchise Tag on Kyle Pitts Sr.
Geoff Neal

Suffers Back-To-Back Knockout Losses
Uros Medic

Shines At UFC Houston
Dan Ige

Gets Finished For The First Time In His Career
Melquizael Costa

Extends His Win Streak To Six
NASCAR

Bubba Wallace Falls Short of Victory at EchoPark Speedway
Carson Hocevar

Rallies to Fourth At EchoPark Speedway After Early Struggles
Ross Chastain

Finishes Third At EchoPark Speedway
Chase Briscoe

Scores First Career Top-Five Finish at EchoPark Speedway
Tyler Reddick

Nabs His Second Win of the Season At EchoPark Speedway
Joey Logano

Will Be Popular DFS Pick at EchoPark Speedway
Tyler Reddick

on Pole After Qualifying Rained Out at EchoPark Speedway
Chase Elliott

Could Chase Elliott Be Worth Rostering At EchoPark Speedway?
Ryan Blaney

Is Ryan Blaney Worth Rostering for DFS at EchoPark Speedway?
William Byron

Is William Byron Worth Rostering for DFS at EchoPark Speedway?
Rondale Moore

Passes Away
Denny Hamlin

Is Worth Consideration for EchoPark Speedway DFS Lineups
Brad Keselowski

Is A Tournament Option for DFS At EchoPark Speedway
NASCAR

Is Bubba Wallace Rosterable In DFS At EchoPark Speedway?
Austin Cindric

Should DFS Managers Roster Austin Cindric at EchoPark Speedway?
Ross Chastain

Is Ross Chastain A Sneaky DFS Option for EchoPark Speedway?
Ricky Stenhouse Jr

Is Ricky Stenhouse Jr. Worth Rostering for DFS at EchoPark Speedway?
Alex Bowman

Will Start Towards the Rear At EchoPark Speedway
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF