Zac Gallen, Diamondbacks Agree to $22.05M One-Year Deal, Securing Ace for 2026

The Arizona Diamondbacks have secured the services of their ace right-hander Zac Gallen for the 2026 season, agreeing to a one-year contract worth $22.05 million, according to multiple reports. The news, first confirmed by ESPN and MLB.com, removes any uncertainty about Gallen's immediate future and keeps one of baseball's premier starters atop the Arizona rotation.

Gallen, 30, has emerged as one of the most reliable and dominant pitchers in the National League since joining Arizona in 2019. Last season, he further solidified his status among the game's elite, making his second consecutive All-Star team and finishing among the league leaders in several key pitching categories. His presence has been central to the Diamondbacks' rise in recent years, including their dramatic run to the 2023 World Series.

• The $22.05 million salary marks a significant one-year commitment, reflecting Gallen's stature and recent performance.
• He remains the anchor of the D-backs' rotation, providing stability for a club with playoff aspirations in 2026.

The agreement comes as Gallen was entering his final year of arbitration eligibility, avoiding the potential for a contentious hearing. Multiple outlets reported that the deal was reached before the deadline for players and teams to exchange arbitration figures, a process that can sometimes strain club-player relationships.

Gallen's value to the Diamondbacks is supported by a stellar statistical profile. In 2025, he posted a 15-8 record with a 3.19 ERA, 210 strikeouts, and a 1.08 WHIP across 31 starts, according to Baseball-Reference. Over the past three seasons, he has ranked in the top five among NL pitchers in WAR and innings pitched, underscoring both his effectiveness and durability.

• 2025: 15-8, 3.19 ERA, 210 K, 1.08 WHIP
• 2023-25: Top 5 in NL WAR and innings pitched

The deal ensures the Diamondbacks retain their ace as they navigate a competitive NL West. It also gives the club time to consider longer-term options with Gallen, who would be eligible for free agency after the 2026 season unless a further extension is reached.

Gallen's return strengthens a rotation that also features promising young arms and recent additions, giving Arizona one of the most formidable pitching staffs in the league. His leadership and consistency provide a foundation as the team seeks to build on recent postseason runs and contend for another deep playoff push.

With Gallen set to lead the staff once again, Diamondbacks fans can look forward to another season of elite pitching at Chase Field and the stability that comes from keeping a bona fide ace in the fold. The agreement signals the club’s ongoing commitment to maintaining a championship-caliber roster in the seasons ahead.