Felipe Meligeni Alves and Nick Hardt meet in the round of 16 at Antofagasta on Wednesday. Felipe Meligeni Alves is 4-6 across recent matches. Nick Hardt has won 3 in a row and 5 of the last 10 overall.

Alves's 69.7% behind the first serve (against 64% for Hardt) means break chances should be scarce in one direction. Alves comes in off a compressed schedule. The edge belongs to Alves — real, but not the kind you take for granted at this level.