Mechanics refers to the combat system in game which is how combat is done. Combat is primarily about power punches,punches, dodging, blocking, and movement. You must carefully manage health, block health, stamina, and positioning. By being good at combat you can earn money and progress in the ranked system, earning elo.
History
Combat and meta tend to change each season in Boxing Beta.
Leaderboards
Combat has several leaderboards you can get to the top of. You can see each combat history in the match history UI.