The Arizona Diamondbacks have officially banned fan Dave McCaskill for repeated violations of fan conduct after he caused multiple home run reviews at Chase Field. McCaskill, a season ticket holder, created a stir when he dove for a potential home run hit by the San Francisco Giants' Christian Koss, leading to controversy and the awarding of second base to Koss.

While McCaskill defended his actions by claiming he didn't intend to interfere, he also acknowledged that he had previously caused around ten replay reviews. His ban extends through the end of the 2025 season, leaving him hopeful for a return next year.

The Arizona Diamondbacks have taken decisive action against a season ticket holder, banning him from Chase Field for the remainder of the 2025 season due to repeated offenses, including interference during a recent game against the San Francisco Giants. With the D-backs leading 3-2 in the eighth inning, fan interference occurred as Christian Koss hit a long fly ball, which was caught by the fan, leading to a controversial overturn of the out call. The team confirmed the ban following multiple inquiries about the incident.

Dave McCaskill, the ejected fan, acknowledged prior ejections and stated he has been reviewed several times over the years. The Diamondbacks emphasized their commitment to fan conduct, terminating McCaskill's Advantage Member account while allowing the possibility of reinstatement in 2026 under specific terms, highlighting the importance of adhering to their Fan Code of Conduct.

The Arizona Diamondbacks have banned a season ticket holder from Chase Field for the remainder of the 2025 season due to repeated instances of fan interference, including a recent incident involving San Francisco Giants infielder Christian Koss. The fan, Dave McCaskill, interfered with a potential game-tying home run during a critical moment in Monday's game. The interference was initially ruled an out but was reversed to a double on review.

Despite the fan’s apology, the Diamondbacks decided to terminate his season ticket account, citing multiple offenses over the years. McCaskill has been involved in similar incidents for four consecutive seasons, leading to his ban until 2026 under specific conditions. This decision highlights the need for maintaining sportsmanship in the stands and reinforces the importance of player safety during critical game moments.