Yoshiaki Katoh

Katoh's first appearance at the World Championship was during the 1991 Grand Prix motorcycle racing season, where he competed riding a Yamaha in the 250 cc class. In 1993 he won the All Japan Road Race Championship title in the 125cc class.^[2] A year later, he competed in the 1994 Grand Prix motorcycle racing season in the same class, this time for the Aspar Cepsa team with better results, finishing in twenty-sixth position overall.

In the 1995 and 1996 seasons, Katoh ranked 14th overall. In 1997, he had a podium finish at the German GP in thirteenth place overall. He retired the following season, finishing in sixteenth place.^{[citation needed]}

Scoring system from 1993 onwards:

(key) (Races in bold indicate pole position, races in italics indicate fastest lap)