|Birth Place||São Gonçalo - RJ|
|Clubs||Sada Cruzeiro and São Bernardo|
2018/19 is Isac’s 6th season playing for Sada Cruzeiro.
He is three-time World Champion (2016, 2015 and 2013), four-time South-American Champion (2018, 2017, 2016 and 2014), five-time Superliga Champion (2017/18, 2016/17, 2015/16, 2014/15, 2013/14), among other titles with Sada Cruzeiro.
Playing for the national team Isac won the silver medal in World Championship in 2018, the silver medal in World League 2013 and the gold medal in the World Championship u-21 in 2009.