The 1991 Chevrolet Classic was a men's tennis tournament held in Guarujá in Brazil and played on outdoor hardcourt. It was part of the World Series category of the 1991 ATP Tour. It was the sixth edition of the tournament and took place from 4 February through 11 February 1991. Unseeded Patrick Baur won the singles title.[3][4]
^John Barrett, ed. (1992). The International Tennis Federation World of Tennis 1992. London: CollinsWillow. pp. 118, 135. ISBN9780002184304.
^McManus, Jim (2010). History of Tournaments: Professional Tennis Winners and Runner-ups. Pont Vedra Beach: MAC and Company Publishing. pp. 271–272. ISBN9781450728331.