Then he beat Jerry Quarry in a 7th round stoppage .
1969 saw Frazier defend his NYSAC title in Texas , beating Dave Zyglewicz , who 'd only lost once in 29 fights , by a first - round knockout .
Then Frazier beat Jerry Quarry in a 7th round stoppage .
1969 saw Frazier defend his NYSAC title in Texas , beating Dave Zyglewicz , who 'd only lost once in 29 fights , by a first - round knockout .