Hardball Rules play online

This free-to-play app lets fans compete against each other or against game-driven AI in exciting nine-inning contests that test their knowledge.

With questions written by some of the nations top rules experts and an engine developed to simulate an actual baseball game, our diamond-based trivia challenge offers countless hours of competition for both the casual baseball fan and the hardcore rules enthusiast alike.

Hardball Rules features leaderboards in multiple categories, highlighting the top 10 players in home runs, winning percentage and more.

Make use of an in-depth challenging system that encourages players to take aim at the best of the best and also lets you invite family and friends to take the field.

Our carefully curated set of questions was created and refined by official scorers and rules mavens with thousands of major league games under their collective belts.

What are you waiting for? Grab a bat and step up to the plate!