Glossary of Judo terminology
Randori (Free sparring)
"Randori" is a free sparring drill which allows both practice partners to execute Waza. Randori is a fundamental Judo drill in which a combatant uses Waza which have polished in Uchikomi (Repetition training) and Yakusoku geiko (Agreed-upon practice), to attack and throw the practice partner in a manner which simulates an actual contest.
Randori (Free sparring) emphasizes the basics, and requires that the partners execute (and receive) the throws at full power. In doing so, they learn how to effectively destabilize the opponent, how to time the Waza, and how to combine Waza, as well as how to defend against Waza and employ counter Waza.