 Complete the following phrase:  In 1979, he successfully competed in the Pan American Games in San Juan, where he won three silver medals; in the 400-metre, the 1500-metre, and the 4×200-metre freestyle. He also won three bronze medals; in the 200-metre freestyle, the 200-metre backstroke, and the 4×100-metre freestyle. He was beaten in the 400-metre and 1500-metre freestyle races, by the world record holder Brian Goodell. However, in both the 200-metre freestyle and in the relays, he broke the South American records. He also competed at the 