Translation guide
In baseball, a fastball is a pitch thrown at high speed. Japanese uses the loanword ファストボール or the native term 直球. The choice depends on context and formality.
A high-speed pitch in baseball, typically the most basic and common type of pitch.
The standard Japanese term for a fastball. Used in formal contexts, commentary, and everyday conversation among baseball fans.
彼の直球は150キロを超える。
His fastball exceeds 150 km/h.
直球で勝負する。
He challenges batters with his fastball.
Loanword from English. Common in casual conversation and among younger fans, but less formal than 直球.
彼はファストボールが速い。
His fastball is fast.
Literally 'fast pitch'. Less common than 直球, but understood. Sometimes used in written descriptions.
速球が武器の投手。
A pitcher whose weapon is the fastball.