Companion Resources

Browse Game Guides or peruse the Companion Blog.

Game Guides

Deep dives into the details of 9 Innings! These guides contain information for beginners as well as strategies for experienced players.

Most recent Game Guides

Grade Increases

Learn about GIs, GI Resets, and GI Tickets. See how GI affects the value of a card.

Special Training Guide

Learn the specifics about Special Training, including how it benefits your team and how many cards you'll need to finish each level.

Black Diamonds Guide

Learn about Black Diamonds, a new upgrade path for Diamond cards that unlock stat bonuses and the ability to acquire Legend Skills.

Companion Blog

From data-dives to notes about the Companion itself, the blog is where you'll find posts from the 9 Innings Companion dev.

Recent Posts

Track Your Ranked Battle Results!

Written by: 9 Innings Companion Topic: About The Companion 01-29-2023

As requested in a recent Patreon new-feature poll, I've added the ability to track your ranked battle results!

Search for Players by First Name!

Written by: 9 Innings Companion Topic: About The Companion 12-05-2022

As requested in a recent Patreon new-feature poll, I've added the ability to search for players in the Registry by their first names! Here's a quick rundown of how it works.

Huge Expansion of Unavailable Players!

Written by: 9 Innings Companion Topic: About The Companion 10-24-2022

To celebrate the Companion's second birthday I've added over 500 unavailable players (~1,600 cards)! C.C. Sabathia, Jose Fernandez, Ichiro, and more! Read on to find out why it took so long to get these players into the Registry.

Player Skills Database!

Written by: 9 Innings Companion Topic: About The Companion 06-30-2022

The Companion now hosts a searchable database of skills! View the effects of every skill in the game, level-by-level.

Adding Supreme Historical Legends To The Companion Registry

Written by: 9 Innings Companion Topic: About The Companion 04-15-2022

Finally! Supreme Historical Legends are here on the Companion! Read on to how you can use these players across the site.