QR1: Santigo de la Fuente (ARG) WR 836 (= CH) vs (q12) Blu Baker WR 766 (= CH)
L16: Blu Baker & Nicolás Mejía (COL) CR 965 (730+235) vs (4) Román Andrés Burruchaga & Francisco Comesana (ARG/ARG) CR 739 (361+378)
edit: more accents added.
QR1: Santigo de la Fuente (ARG) WR 836 defeated (q12) Blu Baker WR 766 by 3 & 3
Blu had an MTO in the middle of the second set.
L16: Blu Baker & Nicolás Mejía (COL) CR 965 (730+235) "defeated" (ALT) by a walkover ("no match", according to the ATP PDF),
but
QF: Nicolás Alvarez & Murkel Dellien (PER/BOL) CR 1228 (959+269) "defeated" Blu Baker & Nicolás Mejía (COL) CR 965 (730+235) by a walkover