Etiquette
Unwritten rules concerning player behaviour/spectators too
Eg
Golf players stand behind each other when opponents taking shot so they don’t distract
Sportsmanship
Fair play
Showing respect
Eg
Rugby tunnel for victors after game
Gamesmanship
Close to breaking rules but don’t get punished
Dubious methods to gain advantage
Not illegal
Eg
Retying shoelace when opponents about to serve in tennis
Contract to compete
Agree to play by the rules
Trying to win but allowing opponent to play
Eg
Football shaking hands