勝てば

if (someone) wins, if (someone) beats

→ 勝つ

勝て Potential/conditional stem + ば Conditional (“if”)

verb Rare #43,574

if (someone) wins, if (someone) beats Conditional form of 勝つ.

JA: 試合に勝てば、みんなでお祝いしよう。

EN: If we win the match, let's celebrate together.

Conjugation of 勝つ

Conditional

If you win, you'll receive a reward.

— イップ・マン序章 (2008)

If you win the match, you get rice.

— イップ・マン序章 (2008)