Refers to a competitive event, often in sports or games, where participants vie for victory.
He won the competition.
They held a contest at the coliseum.
この闘技には多くの選手が参加する。
Many athletes participate in this contest.
He used to take part in contests when he was young.
試合 refers to a specific match or game with a set outcome, whereas 闘技 describes the competitive act more abstractly, often with a fighting nuance.
格闘 emphasizes physical fighting or grappling itself, while 闘技 frames that fighting as an organized contest or event.
Compound of 闘 (fight) and 技 (skill), literally 'fighting skill' or 'combat technique', extended to mean 'competition'.