gamesmanship

noun

1. (countable, uncountable)The use of legal but unsporting tactics to gain an advantage over one’s opponent.

   “They kept the other team waiting on the field until the last possible moment – that was a clear case of gamesmanship.”

   “[Tina] Satter’s film, with its dramatization of the investigators’ formalized gamesmanship and [Reality] Winner’s strategic maneuvering, is fascinating but narrow, both regarding the protagonist and the law at large.”