勝てた

was able to win, could win

→ 勝つ
勝て potential form (can win) + た Past tense
verb · informal, past tense Rare #27,891
was able to win, could win Past form of the potential form of 勝つ.
JA: チームは試合に勝てた。
EN: The team was able to win the game.
Conjugation of 勝つ
Potential past
勝てた

勝てたのは海だけ

The sea was the only thing I could beat.

— レベッカ (1940)

トムは本当に勝てたの?

Did Tom really win?

そうすれば勝てたはず

If you had done that, you should have won.

— ダンガル きっと、つよくなる (2016)

彼が試合に勝てたのは全くの偶然だった。

He won the match purely by chance.

彼のエラーがなかったなら我々は勝てたのだが。

If it hadn't been for his error, we would have won.

勝てたのはファラミアの働きもあります

We won in part thanks to Faramir's efforts.

— ロード・オブ・ザ・リング/二つの塔 (2002)