This is the 577th most frequent Japanese word.
試合
Match; game; contest.
試合 here refers to a competitive sports game, specifically baseball in this context.
野球の試合が雨で中止になりました。
The baseball match was canceled due to rain.
試合 is used to denote a competitive confrontation or contest.
その試合は接戦でした。
That match was a close contest.
試合 describes the event of participating in a sport, specifically his first experience.