 Complete the following phrase:  At regional level, he won medals at five editions of the South American Championships in Athletics. At the 1933 South American Championships in Athletics he was a 10,000 m gold medallist and a bronze medallist in the 3000 metres and 5000 metres. He was a bronze medallist in the road race at the 1941 South American Championships in Athletics, a silver medallist in road race and cross country running at the 1943 South American Championships in Athletics, a silver medallist in road race and 5000 m at the 