At the Los Angeles Olympics he was a focus of great attention, fanning U.S. batters in three straight pitches 12 times and tossing a fastball clocked at 146 kph.
一九八四年洛杉磯奧運的中美之役，他以平均時速一四六公里的直球，三振美隊十二次，引來了美日十家職業隊的「郭投手之爭」。