👉 TAP TO SAVE 30% WITH CODE NEW
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

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
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

#1 Expert Projections
Save 30% Now
Import Your Leagues
Top-Rated Accuracy
Draft Simulator
Enter League Settings
Compare Any Players
Rookies & Call-Ups
24x7 News and Alerts

REAL-TIME FANTASY NEWS

Cameron Payne

Out at Least Two Weeks
Duncan Robinson

Iffy for Monday
Jerami Grant

Out Again Monday
Tobias Harris

Questionable Vs. Magic
Karl-Anthony Towns

Back Against Atlanta
Joel Embiid

Available Monday Vs. Spurs
Mike Trout

Exits Early After Getting Hit by Pitch
Brandon Williams

Good to Go Sunday
Marvin Bagley III

Available Sunday Against Lakers
Moussa Diabaté

Moussa Diabate Back in Lineup Sunday
Kirill Kaprizov

Bags Sixth Career Hat Trick Sunday
Stuart Skinner

Nursing Upper-Body Injury
Charlie Lindgren

Gets the Nod Sunday
Pavel Buchnevich

Ready to Play Sunday Night
Jordan Staal

Jordan Martinook Unavailable Sunday
Frederik Andersen

Takes on Senators Sunday
Linus Ullmark

Faces Hurricanes Sunday
Trevor Lawrence

Can a Dynamic Surrounding Cast Lead Trevor Lawrence to Another Career Year?
Malik Willis

Dolphins Want to Build Around Malik Willis
Courtland Sutton

Has Courtland Sutton's Dropping Dynasty Value Made Him a Buy-Low?
Ryan Rollins

Available Against Grizzlies
David Njoku

One of the Top Remaining Free Agents
Leonard Miller

Matas Buzelis Out Sunday, Leonard Miller Joins Starting Lineup
Tyler Warren

Has Room to Grow in Year Two
Nikola Vučević

Nikola Vucevic Back in Action Sunday
Josh Giddey

Won't Play Against Suns
Trey Murphy III

Out Sunday
Dejounte Murray

Misses Second Straight Game
Anthony Edwards

Won't Play Sunday
Pete Fairbanks

Serving as Opener Before Going on Paternity List
George Klassen

Called Up to Start on Sunday
Stephon Gilmore

Announces his Retirement
Hunter Brown

Placed on 15-Day Injured List with Right-Shoulder Strain
Matthew Stafford

Rams to Put Matthew Stafford on Pitch Count Ahead of 2026 Season?
Isaiah Likely

John Harbaugh "Certain" Isaiah Likely Will Break Out
New York Jets

Jets "Leaning Toward" Arvell Reese at No. 2 Overall
Cleveland Browns

Browns Targeting Carnell Tate at No. 6 Overall?
Tennessee Titans

Titans "Love" Their Running Back Room
Jauan Jennings

Asking for Too Much Money?
Brandon Aiyuk

Nothing Imminent With Brandon Aiyuk
Luther Burden III

Bears Want to Continue to Get the Ball to Luther Burden III
Jesús Luzardo

Jesus Luzardo Dominates Rockies on Saturday
Byron Buxton

Back in Sunday's Lineup
Mookie Betts

Heading to the Injured List With Oblique Strain
A.J. Brown

to be Traded to Patriots on June 2?
Cade Horton

Cubs Place Cade Horton on 15-Day Injured List With Forearm Strain
Isaiah Collier

Out Again Sunday
Immanuel Quickley

Still Sidelined Sunday
Nicolas Claxton

Won't Play Sunday
Evan Mobley

Sidelined Sunday
Jarrett Allen

Won't Play Against Indiana
Clayton Keller

Collects Four Points Against Canucks
Jack Eichel

Records Three Assists in Saturday's Win
Gabe Perreault

Nets First Career Hat Trick
Nicolas Hague

Exits Early Against Sharks
MacKenzie Weegar

Listed as Day-to-Day
Jack McBain

Considered Week-to-Week
Justin Faulk

Questionable Sunday
MarShawn Lloyd

a Dynasty Trade Target with Long-Term Upside?
Emanuel Wilson

a Low-Risk Trade Target in Dynasty Leagues?
Jalen Nailor

Seems Likely to Face Competition
Adrian Kempe

Delivers a Four-Point Performance
Dylan Sampson

a Candidate for Standalone Value in 2026?
Jaylin Noel

Still the Texans' WR4 for 2026?
Evgeni Malkin

Collects Four Points on Saturday
Keenan Allen

Remains a Free Agent in Early April
Mookie Betts

Considered Day-to-Day, Heading for an MRI on Saturday
Juan Soto

Day-to-Day With Minor Groin Strain, No Decision on IL Yet
Nick Lardis

Available Against Kraken
Oliver Ekman-Larsson

Won't Play Saturday
MLB

Cubs-Guardians Game Postponed on Saturday
Mookie Betts

Leaves Early With Back Injury
Tyler Kleven

Out Week-to-Week
Mason Marchment

Expected to Return Saturday
Aliaksei Protas

Returns on Saturday
Alejandro Kirk

Placed on 10-Day Injured List With Thumb Fracture
Juan Soto

Mets Concerned About Juan Soto's Calf Injury
Juan Soto

Removed with Calf Tightness
Byron Buxton

is Day-to-Day with Forearm Contusion
Byron Buxton

Leaves on Friday After Being Hit by a Pitch
Cade Horton

Headed for Injured List Stint
Isaac Paredes

Placed on Bereavement List
Jordan Lawlar

Suffers Fractured Wrist, Set to Miss 6-8 Weeks
Alejandro Kirk

Having X-Rays on his Thumb
Chris Duncan

Set For UFC Vegas 115 Main Event
Renato Moicano

An Underdog At UFC Vegas 115
Tabatha Ricci

Set For UFC Vegas 115 Co-Main Event
Virna Jandiroba

Looks To Bounce Back
Brendson Ribeiro

In Desperate Need Of Win
Abdul-Rakhman Yakhyaev

Looks To Remain Unbeaten
Ethyn Ewing

Set For His Second UFC Bout
Rafael Estevam

Looks To Remain Undefeated
CFB

Gunner Stockton Looking "Great" After Offseason Injury
CFB

Sam Leavitt Showing "Encouraging Signs" at LSU Practice
J.J. Spaun

Needs the Putter to Cooperate in San Antonio
Thorbjorn Olesen

Trending Up in San Antonio
Denny McCarthy

Carrying Momentum into San Antonio
Chris Kirk

Has Course History on His Side in San Antonio
Billy Horschel

a Volatile Option at the Valero Texas Open
Joe Highsmith

Still Searching for Form in San Antonio
Christiaan Bezuidenhout

Looks to Find Form at the Valero Texas Open
Jordan Spieth

a Horse for Course History at TPC San Antonio
Robert MacIntyre

Has One Flaw to Overcome at Valero Texas Open to be a Must-Play
Maverick McNealy

In Exceptional Form This Season
Michael Thorbjornsen

Playing Well But Still Searching For A Win
Hideki Matsuyama

Playing Well Heading to the Valero Texas Open
Si Woo Kim

Heads to Valero Texas Open For Final Tune-Up Before Masters
Collin Morikawa

Withdraws From Valero Texas Open
PGA

Stephan Jaegar Still Looking For Consistency at Valero Texas Open
Nicolai Hojgaard

is Red-Hot Coming to TPC San Antonio
Tony Finau

a Risky Proposition at Valero Texas Open
Ludvig Aberg

Looks to Shake Off Collapse at Valero Texas Open
Patrick Rodgers

Needs to Make More Birdies in San Antonio
Sepp Straka

Seeks Opportunity in San Antonio This Weekend
Nick Taylor

Could Again Struggle at the Valero Texas Open
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF