He beat Michael Gross and broke his world record by 1 - hundredth of a second , touching in 1 : 57.04 to Gross ' 1 : 57.40 .
Jon Sieben won the gold medal that day in Los Angeles .
Jon Sieben beat Michael Gross and broke Jon Sieben 's world record by 1 - hundredth of a second , touching in 1 : 57.04 to Gross ' 1 : 57.40 .
Jon Sieben won the gold medal that day in Los Angeles .