This is the 1371st most frequent Japanese word.
上がり
"上がり" means "rise," "ascent," or "completion," often used to indicate finishing something or a result.
上がり here is used to signify improvement or rise, specifically grades in this context.
その試験の成績が上がり、彼はとても喜びました。
The exam grades improved, and he was very happy.
上がり in this usage indicates completion of a task or work.
仕事が上がり、早く帰ることができました。
The work was finished, so I could go home early.
上がり expresses the sense of feeling uplifted or refreshed.