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The Lens · Rookie Report

Murakami Leads a Rookie Class Worth Watching

JUNE 27, 2026

The first-year players worth watching.

It's a rookie day, and one name towers over the rest. Munetaka Murakami has settled in on the South Side, and a handful of young arms are quietly posting numbers that veterans would envy.

The rookie class

Top first-year players, hitters by OPS (minimum real playing time).

Murakami leads the rookie hitters at .938 with 20 homers, a clear cut above Bryce Eldridge at .857 and TJ Rumfield at .855. On the mound, Gage Jump tops the rookie arms with a 2.04 ERA for the Athletics, with Bradgley Rodriguez (2.10) and Didier Fuentes (2.32) close behind.

Rookies breaking out

Rookies with the biggest OPS jump this week.

Kazuma Okamoto is the one trending up, his OPS climbing 64 points to .805 for the Blue Jays — a late arrival to the rookie conversation, and worth keeping an eye on.

Stats via the MLB Stats API. Colors, form scores and power rankings are Baseball Lens's own.