The correct answer is option 2: Judo.

In Judo, a "triple" is a technique used to throw an opponent to the ground. It involves using a combination of three movements or actions to execute the throw. This technique requires precise timing, coordination, and skill.

Option 1: Boxing is incorrect because "triples" is not a format used in boxing. Boxing is a combat sport where two opponents fight each other using only their fists.

Option 3: Chess is incorrect because "triples" is not a format used in chess. Chess is a strategic board game played between two players on a checkered board.

Option 4: Badminton is incorrect because "triples" is not a format used in badminton. Badminton is a racket sport played with a shuttlecock, and it can be played in singles or doubles format.

Therefore, the correct answer is option 2: Judo, as it is the only option where "triples" is a relevant technique.