さもなければ、一等賞はとれなかっただろう。

Otherwise he would not have won the first prize.

さもなければ、一等賞(いっとうしょう)はとれなかっただろう。

Samonakereba, ittōshō wa torenakatta darou.

然も無ければ (さもなければ)

otherwise; if not; or else

一等賞 (いっとうしょう)

first place prize; blue ribbon

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

獲れる (とれる)

to be harvested; to be reaped; to be yielded; to be able to harvest; to be able to reap; to be able to yield

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: イチ、イツ、ひと-、ひと.つ

Meanings: one, one radical (no.1)

Readings: トウ、ひと.しい、など、 -ら

Meanings: etc., and so forth, class (first), quality, equal, similar

Readings: ショウ、ほ.める

Meanings: prize, reward, praise