Antonio competes in T20 (track) and F20 (field) events. He has held the F20 Long Jump world record since 2005. He competed at the 2008 INAS World Indoor Athletics Championships held in Tallinn, Estonia, and finished first in the 60 meters and long jump, and third in the 4x400 meter event. He finished first in the 2010 European championships in the 100 meters and long jump events.