Arizona Diamondbacks see defensive turnaround in 2026

The Arizona Diamondbacks saw a significant defensive turnaround during the 2026 season. Following a period of ineffective run prevention in 2025, General Manager Mike Hazen prioritized defensive improvements to support the pitching staff.

In 2026, the team's Fielding Run Value rose to +34, moving from 14th to fifth in Major League Baseball. The Diamondbacks tied for the second-fewest errors in the league with 64 and recorded a .989 fielding percentage. Additionally, their Defensive Runs Saved improved to +26, a substantial increase from the -13 recorded in 2025.

Offensively, the team faced challenges with production against right-handed pitching and a lack of left-handed hitting outside of Corbin Carroll. There has been speculation regarding the roster management of Ketel Marte following his contract extension and previous trade market dynamics.