Roberto Jalnaiz is a retired amateur

Amateur

An amateur is generally considered a person attached to a particular pursuit, study, or science, without pay and often without formal training....

 boxer

Boxing

Boxing, also called pugilism, is a combat sport in which two people fight each other using their fists. Boxing is supervised by a referee over a series of between one to three minute intervals called rounds...

 from the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

, who won the gold medal at the 1990 Asian Games

1990 Asian Games

The 11th Asian Games also known as XI Asiad were held from September 22, 1990 to October 7, 1990 in Beijing, China. It was the first large-scale international sports event to be held in the People's Republic of China. A total number of 6,122 athletes, coming from 37 countries, competed in 29 sports...

 in the men's bantamweight

Bantamweight

Bantamweight is usually a class in boxing for boxers who weigh above 115 pounds and up to 118 pounds . However, in Mixed Martial Arts it is 134-136 pounds . Wrestling also has similar weight classes including bantamweight...

 (– 54 kg) division. He represented his native country twice at the Summer Olympics: in 1988 and 1992.

Jalnaiz was the only Filipino gold medalist in the 11th Asian Games held in Beijing, China in 1990. In 1991, he also won gold during the 12-nation Asian Invitational Boxing Championship in Bangkok, Thailand and another gold medal during the 1991 Southeast Asian Games in Manila.