A proverb meaning that victory or defeat can depend on luck — results are often affected by timing or fortune.
どちらが勝ってもおかしくない試合だった。勝負は時の運だね。
It was a match either side could have won. Victory depends on luck, I guess.
大きな大会での偶然の判定で敗れた。勝負は時の運だとしか言いようがない。
We lost because of a lucky (or unlucky) judge's decision in the big tournament. You can only say it's down to luck.