Fenech, nicknamed the "Marrickville Mauler," achieved an impressive feat by winning titles in three weight divisions within just 20 fights over a span of 3 and a half years.
Fenech won his first world title in the IBF bantamweight division in 1985, with a one-sided, ninth-round TKO over Satoshi Shingaki of Thailand. He defended the bantamweight crown three times, including a rematch win over Shingaki and a 14th-round TKO over Olympic champion Steve McCrory of the United States.