A spot in the next round is at stake on Wednesday, when Ivan Justo Guido goes up against Joao Lucas Reis Da Silva in the Antofagasta round of 16. Ivan Justo Guido has won 6 in a row and 8 of the last 10 overall. Joao Lucas Reis Da Silva comes in at 6 wins from the last ten.

Ivan Justo Guido simply rates much higher on clay, and our number follows from it. Guido comes in off a compressed schedule; Silva comes in off a compressed schedule. This one is close to a coin flip, and the lean toward Guido is exactly that — a lean.