how to join the IBL

The IBL welcomes anyone who enjoys playing our game to join as an Associate member. Associates can participate by playing games for owners who have scheduling difficulties, or act as caretakers when an owner must step away for an extended period of time. When a franchise becomes available for new ownership, interested Associates (and co-owners) are given the opportunity based on seniority. Associates can also be invited to join an existing team as a co-owner.

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2019 card set released

The 2019 IBL card set (2018 MLB season) is now available for public download. IBL members get immediate access to the latest cards, so consider joining if early availability is important to you. We have opportunities to start playing games right away.

catcher defense

The 2019 card set introduces a new defensive rating for catchers along with a new CFR range on the pitcher card. The purpose of these changes is to better model the defensive contributions by catchers.

Before we dig into the new system, let’s first examine the deficiency that it is intended to address. Previously, […]

rules for Shohei Ohtani

Shohei Ohtani is the first player to meet our carded criteria for both pitchers (20 IP) and hitters (30 AB+BB as a non-pitcher) in over a decade. […]

2019 ratings

This post will be continually updated with links as the player ratings are completed for the 2019 card set. This data is only available to IBL Members for use in preparation for the annual Free Agent Draft.

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2018 card set released

The 2018 IBL card set (2017 MLB season) is now available for public download. IBL members get immediate access to the latest cards, so consider joining if early availability is important to you. We have opportunities to start playing games right away.