Depicts two fighters and the Rio 2016 Summer Olympics logo, the country name below.

Judo, meaning "gentle way," was created in 1882 by Jigoro Kano in Japan as a physical, mental, and moral discipline. It is a modern martial art that evolved into a combat and Olympic sport. The main objective in judo is to throw or takedown an opponent, immobilize them with a pin, or force submission through joint locks or chokes. While strikes and weapon defenses are part of judo in kata (pre-arranged forms), they are not permitted in competition or free practice. A judo practitioner is called a judoka.

Judo debuted at the 1964 Summer Olympics in Tokyo. After being excluded in 1968, it has been an Olympic sport in every subsequent Games. Women first participated in 1988 as a demonstration sport and were awarded medals starting in 1992. Judoka compete in weight classes, with each country allowed one athlete per class.

Numerical denomination and date surrounded by geometric patterns and Southern Cross.

Crux is a constellation located in the southern sky in a bright portion of the Milky Way, and is the smallest but one of the most distinctive of the 88 modern constellations. Its name is Latin for cross, and it is dominated by a cross-shaped or kite-like asterism that is commonly known as the Southern Cross.