Sunday 29th May 1938

The Gávea National Circuit race in Brazil was a South American affair with no major European entries. Nascimento Junior took the lead followed by Chico Landi and Querino Landi. Soon Mário Valentim passed for third while up at the front Nascimento Junior opened up the gap. At half distance Nascimento was leading by over 80 second from Chico Landi who held an even greater gap to Valentim whose third position was challenged by Cañedo and Avellar. Nascimento took it easy during the second half of the race to win from Chico Landi and Cañedo.