meaning of under par ??

I am readibng the partial story this way:

A guy was hit by lightning while playing golf. He died and went to heaven. Saint Peter greeted him and allowed him to ask any question about mankind. All this guy wanted to know was how he would have scored if he hadn't been hit by lightning, so that was how Saint Peter responded.

"One under par" in the game of golf is a good score. It means taking one fewer stroke than the standard number to finish a game.

meaning of under par??
---you would have finished one under par

par 可以解釋為 高爾夫球中的標準杆數，通常72 杆。under par 就是低標準杆，這是高爾夫球評分的術語。

按照字面翻譯 literally:
你原本應該以低標準杆一杆完成，如果不是被閃電擊中。

It could be an example given by the speaker, saying that life is unpredictable. Nobody knows what will happen in the future.

means equally,equal marks. when finished at equal rating.