👉 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

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

Intro To NL/AL-Only Leagues: Draft Strategies for Fantasy Baseball

Rick Lucks discusses three things about NL-Only and AL-Only fantasy baseball leagues he learned the hard way. The player pool is smaller, which means draft strategy is even more important.

If you're looking to liven up your fantasy baseball experience, trying your hand at an Only league could be a great way to bring a fresh perspective to one of your favorite pastimes. While standard mixed leagues are largely a race to accumulate as many elite performers as possible, Only leagues allow gamers to demonstrate their knowledge of the entire player pool. You can take pet players that wouldn't be viable in standard formats and still have a shot. Better yet, you can take a bow when they finish firmly on the fantasy radar.

Some people balk at the idea of an Only league because they like players in both the AL and NL. "Why would I want to limit the choices available to me?" they might ask. Participating in both an AL- and NL-Only league concurrently solves this issue. You're still working with the entire player pool between the two leagues while having a reason to care about that nondescript prospect who started getting reps in Oakland.

Other managers claim that Only leagues are too much work, and a lot more research indeed goes into them. This article is intended to jump-start a novice manager's Only draft prep with three proven tips. Let's get started!

Be sure to check all of our fantasy baseball draft tools and resources:

 

1. Playing Time is Key in Only Leagues

If you take nothing else from this article, you must understand the team that records the most plate appearances and innings is likely to finish well in an Only league. Managers in standard leagues usually look for upside when one of their core players lands on the IL, but your waiver wire will be a barren wasteland in an Only format. You'll be ecstatic to find a .220 hitter with little power or speed.

Thankfully, you can prepare for this eventuality on draft day. Invest in bench bats covering every position, and prioritize multi-positional guys to give you versatility when you're scouring the waiver wire. This way, you'll be as prepared as possible when injury inevitably strikes.

Likewise, Only leagues are not the right place to invest in playing time gambles. Jacob deGrom will probably be great when healthy, but we know he won't be ready for Opening Day. Byron Buxton isn't injured yet, but do you think he'll log 600 PAs? Paul Skenes has all the talent to make an immediate fantasy impact upon his debut, but when will that be?

Guys like that are worthwhile plays in standard leagues because quality is more important than quantity, but quantity is more important in Only formats. Boring regulars like Carlos Santana will be the glue holding your roster together, so don't hesitate to take them over flashier playing time risks.

 

2. Outfield is a Scarce Position in Only Leagues

Outfield is seen as one of the deepest positions in fantasy, ranging from perennial All-Stars like Ronald Acuna Jr. to exciting prospects like Jackson Chourio. Managers in standard leagues never need to inflate an outfielder's value for position scarcity, but some basic arithmetic shows that it's different in an Only league.

Assuming a 10-team league with standard deep rosters (2 C, 5 OF, CI, MI, U), your league wants to roster 50 outfielders (10 teams times five per team). However, each of the 15 real MLB clubs only has three outfielders. That works out to 45 starters (15 teams times three per team) before we even consider platoons and teams lacking everyday options. Considering that outfielders traditionally generate a lot of value, coming up short at the position is a great way to finish in the bottom half of your league.

The math isn't as bad for infielders. Your 10-team league wants to roster 15 third basemen (10 teams with a 3B slot plus half of the CI slots), which is the exact number the 15-team AL and NL provide. Catchers are also scarce, but they play less often and put up poor numbers anyway. Therefore, you must treat outfielders as a scarce commodity and take pains to ensure that you leave your draft with at least five everyday players at the position. Otherwise, you'll spend the entire season trying to correct the deficiency.

 

3. You Can Wait on Starting Pitching in Only Leagues

Assuming the roster construction above, your league wants to roster 90 pitchers (10 teams times nine pitcher slots). All 15 of the guys currently earning saves should be rostered in an Only league, and some managers will roster an additional reliever to improve their ratios. If we say an average of 20 relievers will be rostered at any one point, we need 70 starters to meet our league's demand.

Most MLB clubs have a five-man rotation, meaning that 75 starters have jobs at a time. That's more than we need to fill out all of the starting rosters: the only position with a surplus in the entire format. The starters you find on waivers won't be good, but they will start. That's more than you can say for all the offensive positions, so you don't need to invest in as much SP depth.

Closers are a challenging commodity to manage in Only leagues. Your fifth-ranked and 10th-ranked closers don't differ by enough to offset the loss of an everyday position player, but you also need to compete in the saves category. The ideal strategy is to take the last two closers on the board, setting you up to finish in the top half of your league in saves for as little draft-day capital as possible.

 

Conclusion

Playing in an Only league is a different experience than many managers are used to, but it can be more engaging if you're looking to add strategy. RotoBaller offers a variety of resources to help novice and experienced managers alike with all of the research, so why not try an Only league this season?



Download Our Free News & Alerts Mobile App

Like what you see? Download our updated fantasy baseball app for iPhone and Android with 24x7 player news, injury alerts, sleepers, prospects & more. All free!



More Fantasy Baseball Advice




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

Jake Allen

has Excellent Performance in Defeat
Logan Thompson

Nearly Perfect In Victory
Pascal Siakam

Uncertain for Saturday Against Spurs
Stephon Castle

Questionable for Saturday Versus Pacers
Donovan Mitchell

Questionable as Cavaliers Visit New Orleans
Kevin Porter Jr.

Listed as Questionable Against Phoenix
Isaiah Collier

to Miss Second Straight Game
Joel Embiid

Out Saturday Against Utah
Tanner Bibee

to Take the Ball on Opening Day
Logan Webb

to Start on Opening Day for Giants
Christian Wilkins

"Fully Intends" to Play in 2026
Jake Bobo

Jaguars Sign Receiver Jake Bobo to an Offer Sheet
Trent Williams

49ers Decline to Pick Up Trent Williams' $10 Million Option Bonus
Jaxon Smith-Njigba

Seahawks Exercise Jaxon Smith-Njigba's Fifth-Year Option
Cristopher Sánchez

Cristopher Sanchez to Start on Opening Day for Phillies
Chris Sale

Braves Name Chris Sale as Their Opening Day Starter
Kyle Stowers

Leaves Friday's Game With Hamstring Tightness
DJ Chark

Hangs Up his Cleats
Naz Reid

Ruled Out Friday Against Portland
Jasson Domínguez

Jasson Dominguez Optioned to Triple-A
GG Jackson II

Out Friday Against Boston
Austin Reaves

Added to Injury Report Saturday
Kawhi Leonard

Questionable Against Dallas
Trae Young

Still Sidelined Saturday
Terance Mann

is Unavailable on Friday
Tyler Toffoli

Won't Play Saturday
Andrew Wiggins

Remains Out Saturday
Marcus Sasser

to Sit Out on Friday
Cedric Coward

a Late Scratch Friday
Joel Armia

Ready to Return From Back Injury
Quinten Post

is Ruled Out for Friday's Game
Joel Eriksson Ek

Kirill Kaprizov, Joel Eriksson Ek to Remain Out Saturday
Karl-Anthony Towns

Set to Suit Up Against Brooklyn
Ziaire Williams

to Play on Friday
Ross Colton

Still Out Friday
Ben Saraf

is Available on Friday
Yan Kuznetsov

Remains Sidelined Friday
Ivica Zubac

to Miss Rest of the Season
Shayne Gostisbehere

Misses Seventh Straight Contest
Jacob Misiorowski

Named Opening Day Starter
Morgan Rielly

Cleared to Play Friday
Mike Trout

X-Rays Come Back Negative on Mike Trout's Hand
Ja'Tavion Sanders

Panthers Expect Ja'Tavion Sanders to be Ready for Offseason Program
Dylan Crews

Optioned to Triple-A Rochester
Quinshon Judkins

Does Quinshon Judkins Have RB1 Upside in Dynasty Formats?
Jayden Reed

Is Jayden Reed a Buy-Low Candidate After Injury-Marred 2025 Campaign?
Lerone Murphy

Set For UFC London Main Event
Chris Olave

Rehabs his Dynasty Value With Resurgent 2025 Performance
Movsar Evloev

Looks To Remain Unbeaten
Tyrone Tracy Jr.

Facing Uphill Battle for Playing Time in New York
Michael Aswell

Jr. An Underdog At UFC London
Luke Riley

Set For UFC London Co-Main Event
Chimere Dike

Could See a Diminished Role in 2026
Joe Ryan

Named Opening Day Starter for Twins
Chase Brown

Profiles as a High-End Dynasty Running Back Heading into 2026
Sam Patterson

Looks To Extend His Win Streak
Michael Page

Set For Welterweight Bout
Austen Lane

In Dire Need Of Victory
Iwo Baraniewski

A Favorite At UFC London
C.J. Stroud

Will C.J. Stroud Ever Rediscover his Rookie-Season Magic?
Bijan Robinson

Finally Has the Falcons' Backfield All to Himself
Najee Harris

Remains on the Open Market
George Kittle

Injury Complicates Price Tag
Jameson Williams

Flashes WR1 Upside Ahead of 2026
Parker Washington

a Solidified Fantasy Option Despite Crowded Offense?
Nico Collins

Has Yet to Reach His Full Potential
Collin Murray-Boyles

Unlikely to Play Friday
Sergei Bobrovsky

Shuts Out Oilers with 21 Saves
Trent Frederic

Exits Early Against Panthers
Mason Appleton

Hurt Thursday Night
Tyler Toffoli

Suffers Lower-Body Injury in Thursday's Loss
Victor Hedman

Makes Early Exit Due to Illness
Juuse Saros

Dealing with Upper-Body Injury
Rome Odunze

Steps Into a Larger Role for 2026
Baker Mayfield

Loses Top Receiver After Subpar Season
Spencer Knight

Shuts Down the Wild on Thursday
Adam Fantilli

Scores Two Goals in Victory
Francisco Alvarez

Pulled Early Thursday With Back Tightness
Auston Matthews

Ruled Out for 12 Weeks
Yaroslav Askarov

Still Out Thursday
Luis Severino

to Start for A's on Opening Day
Kirill Kaprizov

Won't Play Against Blackhawks
Alex Tuch

Expected to Return Thursday
Logan Gilbert

Named Mariners Opening Day Starter
José Ramírez

Jose Ramirez Back in Cactus League Lineup on Thursday
Hayden Birdsong

to Have Tommy John Surgery, Miss Entire 2026 Season
Zack Wheeler

to Pitch in Minor-League Game on Monday
Paul Skenes

Pirates Officially Name Paul Skenes Their Opening Day Starter
Jurickson Profar

Officially Suspended for Entire 2026 Season
Carson Williams

"Likely" to Be Rays Opening Day Starting Shortstop
Trey Yesavage

Will Open 2026 on the Injured List Due to Shoulder Impingement
Max Fried

to Start on Opening Day for Yankees
Akshay Bhatia

Withdraws From Valspar Championship
CFB

Alberto Mendoza Drawing Positive Reviews at Georgia Tech
CFB

Anthony Colandrea Impressing in Nebraska's Spring Practices
J.J. Spaun

Offers Upside Despite Poor Course History at Innisbrook
Aaron Rai

Looks to Bounce Back at Valspar Championship
Johnny Keefer

Brings Ball-Striking Upside to Valspar Championship
Billy Horschel

a Volatile Play at Valspar Championship
Ben Griffin

Looks to Rebound at the Valspar Championship
Corey Conners

Brings Elite Ball-Striking to Valspar Championship
Xander Schauffele

Trending In The Right Direction For Valspar Championship
Sahith Theegala

Has Shot to Challenge at Valspar Championship
Mackenzie Hughes

Looking to Bounce Back at Valspar Championship
Nicolai Hojgaard

Finding Rhythm For Valspar Championship
Matt Fitzpatrick

Continues Hot Start to 2026 Heading to Valspar Championship
Pierceson Coody

Heads to Valspar Championship Following Two Missed Cuts
Wyndham Clark

Searching for Momentum at Valspar Championship
Justin Thomas

Is Justin Thomas Back Ahead of This Week's Valspar Championship?
Jordan Spieth

to Bounce Back at Favored Valspar Championship?
Brooks Koepka

is Starting to Find His Groove Again Ahead of Valspar Championship
Viktor Hovland

is One of The Best DFS Plays at Innesbrook
Rasmus Hojgaard

to Get Back on Track at Valspar Championship
Tony Finau

is Again a Scary Option at Valspar Championship
Blades Brown

Continues PGA Tour Run at Valspar Championship
Josh Emmett

Suffers First-Round TKO Loss
Kevin Vallejos

Scores First-Round TKO
Amanda Lemos

Drops Back-To-Back Fights
Gillian Robertson

Extends Her Win Streak
Andre Fili

Drops Decision on Saturday
Denny Hamlin

Dominates and Gets His Third Career Las Vegas Win
Chase Elliott

Earns Runner-Up Finish at Las Vegas
William Byron

Wins A Stage and Finishes Third at Las Vegas
Christopher Bell

Finishes Fourth at Las Vegas After Strong Run
Kyle Larson

Fades to Seventh Despite Leading Laps Early at Las Vegas
Andre Fili

Jose Delgado Edges Andre Fili in Split-Decision Win
Oumar Sy

Suffers First-Round Submission Loss
Ion Cutelaba

Returns To The Win Column
CFB

CJ Carr Enters Sophomore Season as Heisman Favorite
CFB

Aaron Philo Not a Lock to be Florida's Starting QB?
CFB

George MacIntyre the Favorite to Win Tennessee Quarterback Battle?
CFB

Keelon Russell, Austin Mack Battling for Alabama QB1 Duties
Christopher Bell

Looking for Redemption, Wins Pole at Las Vegas
Denny Hamlin

Should Contend for Another Vegas Win
Chase Briscoe

Qualifies 18th Despite Toyota Dominating at Las Vegas
Chase Elliott

May Fly Under the Radar at Las Vegas
NASCAR

Ross Chastian Has Been As Solid As They Come at Las Vegas
Ty Gibbs

Could Ty Gibbs Finally Break Through With a Win at Las Vegas?
Brad Keselowski

a Solid DFS Pick at Las Vegas
Kyle Larson

Should Kyle Larson be Considered A Favorite for Las Vegas?
William Byron

Could Compete for a Top-Five Finish at Las Vegas
Ryan Blaney

Is Ryan Blaney Worth Rostering in Tournament DFS Lineups for Las Vegas?
Tyler Reddick

Could Continue his Top-10 Streak at Las Vegas
Joey Logano

Should DFS Managers Underestimate Joey Logano for Las Vegas?
Chris Buescher

Is Chris Buescher Worth Rostering For Las Vegas DFS Lineups?
NASCAR

Bubba Wallace is A Risky DFS Option Who Could Pay Off at Las Vegas
Josh Berry

Has Plenty of Upside for Las Vegas DFS Lineups
Ryan Preece

Scores his First Las Vegas Top-10 Starting Spot in Qualifying
RANKINGS
C
1B
2B
3B
SS
OF
SP
RP

RANKINGS

QB
RB
WR
TE
K
DEF