The ABS Challenge System was supposed to cut down on umpires’ mistakes. In reality, it has enlarged the bullpen tax that fantasy managers are paying. Major League Baseball’s newfangled scheme has shrunk the strike zone,

Hall of Famer John Smoltz said he likes the ABS challenge system but is urging MLB to not make automated strike zones full-time in baseball.

Over two months into the 2026 MLB season and the new era of ABS challenges, here's where the San Francisco Giants and Athletics rank in success rate.

Seven weeks into MLB's first ABS Challenge System season, the Detroit Tigers are winning the battle. The Washington Nationals aren't even close.

At long last, player protest with ball or strike calls can be handled with something other than ineffectual arguing. Beginning with the 2026 MLB season, players will have the power to appeal the strike-zone judgments of human home-plate umpires by turning to the Automated Ball-Strike (ABS) Challenge System,

The New York Mets might be tied for last place in the National League East, but they're at least tied for first in one notable category.

The Dodgers’ hitters have only challenged 52 pitches this season (25th in MLB), but they rank fifth in the National League in success rate at 50%. Will Smith ranks third among NL catchers with a 66.7% success rate.

A failed automated ball-strike (ABS) challenge from Pirates second baseman Brandon Lowe somehow led to the umpires giving him the boot. During the fourth inning of Pittsburgh’s 10-9 win over the Twins on Saturday in Pittsburgh,

Nearly two months into the 2026 MLB season, the sample size of data for the new ABS challenge system has produced some notable results for the best and worst teams at using the system.

SAN DIEGO — Cincinnati Reds shortstop Matt McLain challenged three pitches in his eighth-inning plate appearance and won all three for a two-out walk Monday night in the Reds’ 6-2 loss to the San Diego Padres.