SimLeague Baseball™ is a baseball simulation game that puts you in the dual role of GM and manager.

Build a team of stars from throughout MLB history. Mantle, Cobb & Manny playing in the same Coors Field outfield? Koufax, Feller & Lincecum in the same rotation in Petco? You can do it all.

Who bats where? What's the bullpen look like? How many pitches should my setup man throw? Who should pinch-hit late in the game down by 2? A 162-game season presents many decisions, and you get to make them all. Earn your league title and win prizes!

Where will you finish in our fantasy baseball simulation?

Manage & GM
League Play
League Types
Live Play
Tournament of Champions
Player's Guide
Select 25 players from any season going back to 1885 while staying under your salary cap. Players perform based on their actual stats and can endure fatigue during the season.
Set pitching rotations, bullpen roles, lineups, managerial and player settings. Assign rest, defensive replacement & pinch-hitting hierarchies and much more. Trade, use the waiver wire, promote from within.
Variable league & division sizes provide flexibily to re-create any season. The default league is 24 teams with 6 divisions and two wild cards with the World Series as the goal. Win prizes that can be used in our Reward Center.
Open Leagues use the default rules whereas Theme Leagues use unique rules created by our users. Our Theme League Wizard helps with the formation and policing of league rules including progessive league play. View the current list of theme leagues.
The regular season is broken down into 3 games each day: morning, afternoon and evening. Playoffs follow the season and vary based on league type. Each game has a boxscore with detailed play-by-play and stats galore.
Play your SimLeague games online and interactively against your opponent. Click here for more information.
Make it to the league finals and your team will be enrolled in a 32-team tournament with up to $150 in prizing! Click here for more information.
Want more detailed information? Click here to view the Player's Guide.
Start a Full Season

Build a team, set lineups and pitching staffs and
compete against other baseball fans like you!

"the stars of the past, present and future - all in the same league." tjefferson

Try a 10-game trial season for free.
Draft and play, it's that easy.


Create or re-play any fantasy matchup from sports history. One click yields a free box score and play-by-play.

Try It For Free

Hardball Dynasty

Run your own baseball franchise in this in-depth, multi-player baseball game.

Try It at a Discount

Gridiron Dynasty

Coach, recruit, and run your own college football program.

Every DIA, DIAA, DII, & DIII College Awaits

Dream Teams

Build a dream team of favorites from sports history. Pit them against historical teams or other dream teams.

Play Now! It's Free

Hoops Dynasty

Coach, recruit, and run your own college basketball program.

Every DI, DII & DIII College Awaits

SimLeague Basketball

Compete in a full season with your dream team from NBA past and present. Depth charts, defensive sets, prizes, and more.

Try It For Free

SimLeague Hockey

Compete in a full season with your dream team from NHL past and present. Line & pair management, goalie options, prizes, and more.

Try It For Free

SimLeague Football

Compete in a full season with your dream team from NFL past and present. Depth charts, game plans, prizes, and more.

Try It For Free

FC Dynasty

Coach, build and develop your own soccer club.

Play Now! It's Free

TESTNew Terms of Use Customer Support New Privacy Statement Advertising Choices

© 1999-2021, Inc. All rights reserved. Use of this website (including any and all parts and components) constitutes your acceptance of these Terms of Use and Privacy Policy. WhatIfSports is a trademark of, Inc. SimLeague, SimMatchup and iSimNow are trademarks or registered trademarks of Electronic Arts, Inc. Used under license. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.