Saturday's Antofagasta semifinal pits Joao Lucas Reis Da Silva against Juan Carlos Prado Angelo on clay. Juan Carlos Prado Angelo brings a 3-match winning streak into this one, 7-3 across the last ten. Joao Lucas Reis Da Silva comes in at 7 wins from the last ten.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Silva comes in off a compressed schedule; Angelo comes in off a compressed schedule. A tiebreak or two would surprise nobody, with Angelo fractionally more likely to land the big points.