
MLB's First ABS Season: 54% Overturn Rate, Reds Lead, Dodgers Lag
The 2026 MLB season marked the debut of the Automated Ball-Strike (ABS) challenge system, resulting in a 54% overturn rate across 10,557 total appeals. While fielders succeeded 58% of the time, hitters managed only 49%. The Cincinnati Reds led the league in net run gains, whereas the Cleveland Guardians finished last. Notably, eight of the twelve playoff teams recorded negative net runs, including the Los Angeles Dodgers and New York Yankees.













