# Automated ball-strike system implementation in baseball > Live situation record from CLSTR: https://clstr.news/situations/automated-ball-strike-system-implementation-in-baseball > Updated: 2026-08-29T03:12:29.000Z. Sources: 5. Developments: 2. The implementation and impact of the Automated Ball-Strike (ABS) system in American baseball has become a focal point for both collegiate and professional levels. The NCAA has approved the use of the ABS system across all divisions starting in the 2027 season. Under these new rules, the technology will be optional for teams with the necessary facilities. The system allows players to challenge umpire calls via a helmet or hat tap, triggering a video board display to resolve disputes, typically within 10 to 15 seconds. In Major League Baseball, the use of the system has led to increased scrutiny of umpires. During the 2026 season, high volumes of successful challenges have caused tension on the field. Notable incidents include a game where 10 out of 14 challenges were overturned, leading to the ejection of a manager and a pitcher, and another instance where eight consecutive calls were overturned. ## Timeline ### 2026-08-29: MLB umpires face scrutiny as ABS challenges overturn numerous calls MLB umpires are facing increased scrutiny as the Automated Ball-Strike System (ABS) continues to overturn numerous calls, including 10 successful challenges in a Diamondbacks-Giants game. 3 sources. https://clstr.news/cluster/mlb-umpires-face-scrutiny-as-abs-challenges-overturn-numerous-calls ### 2026-08-27: NCAA approves automated ball-strike system for college baseball The NCAA has approved the optional use of the automated ball-strike (ABS) system for all college baseball divisions starting in the 2027 season to improve officiating accuracy. 2 sources. https://clstr.news/cluster/ncaa-approves-automated-ball-strike-system-for-college-baseball --- Cite as: Automated ball-strike system implementation in baseball. CLSTR, https://clstr.news/situations/automated-ball-strike-system-implementation-in-baseball