Juan Carlos Prado Angelo and M. Tobon meet in the quarterfinal at Antofagasta on Friday. Juan Carlos Prado Angelo is 7-3 across recent matches. M. Tobon has won 3 of the last 10.

There's a wide gap in our ratings on clay, and our number follows from it. Angelo comes in off a compressed schedule; Tobon comes in off a compressed schedule. Expect resistance, but the match-level math tilts clearly toward Angelo.