gamesmanship

noun

Etymology: From game + -s- + -manship or gamesman + -ship.

1. 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.”