His personal best of 78.63 metres (2016) is the current South American record.In the first half of 2016, Domingos broke 3 times the Brazilian record of Hammer Throw: launched the hammer to 75,60m in May in Zagreb; 75,62m in Varazdin, and 76,12m in Zagreb again.
The first time he broke the Brazilian record in 2005, the best mark in the country was 66,30m.
Until then, the record was not improved since 1978.On June 20, 2016, he finally broke the South American record for the hammer throw with 78,63m.
The South American record was 76.42m, belonged to the Argentine Juan Cerra until 2006.
Brazil again had a representative at the Olympic Games in this event, which has not happened since Carmine Di Giorgi played it in Los Angeles 1932.In December 2012, he married javelin thrower Laila Ferer.