Middleweights were limited to a maximum of 73 kilograms in body mass.
Espinoza, three times Olympic medalist faced twenty-two years old Lee Da-bin from South Korea in the final who had never competed in a World Championships before. A body shot for Lee gave her an early 2–0 lead. Espinoza responded with a punch but Lee scored few more points to finish the first round 7–1. Lee carried on where she left off at the start of the second to finish it 14–2. In the third round Lee maintained her intensity and landed a number of shots to the body and head shots to win her first ever World Championships 22–2.
