He earned his spot in coach Robert Jaworski's rotation as a reliable backcourt defender and his valuable contributions on defense helped the Gin Kings win two more championships in 1988 and 1991.
[2] Prior to the start of 1992 PBA season, he was traded to Pepsi for Tonichi Yturri, and then to Shell Rimula-X in exchange for Gido Babilonia and Leo Austria.
Alcohol / Ana Water Dispenser, Boom Laundry Masters, Montaña Jewels, Blu All Purpose Detergent Kings, and Noosa Shoe Stars.
In 2009, Isaac was hired as head coach for the Barako Bull Energy Boosters in the PBA[5] after Yeng Guiao resigned and later moved to Burger King Whoppers.
In 2011, Isaac was appointed head coach of the Blackwater Elite, one of the founding franchises in the newly formed PBA Developmental League.