NPB caps each club at 4 active foreign (import) players — a distinct, high-variance population signed from MLB / AAA. This is the one board that ranks every import by how they actually perform relative to the league average, with their handedness splits and recent form, so you can see at a glance which imports are carrying and which are scuffling.
How "foreign" is decided: the source rosters carry no nationality field, so this flag is derived — domestic players carry a Kanji native name; imports carry a Katakana transliteration (with a romaji name-pattern fallback when no native name is present). It is a heuristic, not an official designation. Sample sizes shown — small splits are noisy.
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For entertainment & information only. 21+. Please play responsibly. Foreign-player flag is derived from name pattern, not an official roster designation.