The release of Ballpark 2.0 was announced on Sept 13th, 2026, in the Windows Desktop edition. This release is available for download on the justBallpark website.
Automated Bridge from the GameChanger Scorebook to Real Sabermetrics
GameChanger is the standard tool for scoring amateur games in the U.S. and internationally, but it provides almost exclusively traditional box-score statistics (AVG, OBP, SLG). Anyone who wanted to use deeper sabermetrics previously had to laboriously transfer data into Excel spreadsheets by hand.
Ballpark closes this gap seamlessly by importing GameChanger scorebooks and play-by-play data with a single click and immediately converting them into advanced metrics—without a single minute of manual data entry.
Version 2.0 introduces a fast and effective play-by-play score result editor, making it easy to enter and prepare score data for advanced statistics that go beyond the obvious, including league Run Value calculations, wRC+, wOBA, FIP, and other advanced metrics.
This release also includes lineup optimization based on Run Values for evaluating isolated batter performance and lineup position.
Key features include AI-assisted statistical evaluation, a reporting system, and rolling performance charts to interpret player statistics in context and track player development over time.
The QDC Reliability Score for the “Small Sample Size” Problem
In amateur sports, there are rarely more than 15 to 30 games on the schedule per season. Traditional metrics are extremely misleading here: A .350 batting average after 12 at-bats against two weak pitchers regularly leads coaches to make incorrect lineup decisions.
The Data Reliability Score (Quantity, Diversity, Consistency) provides the mathematical certainty that is crucial in amateur sports. It evaluates not only raw performance but also objectively measures how much quality, opponent variance, and consistency lie behind the numbers—and protects coaches from misjudgments caused by random effects.