What happened: Pete Crow-Armstrong restructured his mechanics over the course of the 2026 season. The midyear adjustments targeted technical refinements to his swing and overall execution.

Why it matters: The mechanical refinements coincided with Crow-Armstrong leading MLB in five year-over-year plate-discipline shifts during the second half. That progression supported a campaign in which he joined the 40/40 club and became the first National League center fielder to capture a Platinum Glove in 16 years.

What to watch: Crow-Armstrong heads into the winter looking to solidify the mechanical adjustments ahead of the 2027 season.