Gustavo Vellbach advanced when Sebastian Exequiel Pini retired 6-3 4-0 in the Chile F4 qualifying round of 16. Gustavo Vellbach claimed a first win over Sebastian Exequiel Pini in two meetings, levelling the head-to-head at 1–1.
Vellbach G. advanced when Exequiel Pini S. retired.
Gustavo Vellbach beat Sebastian Exequiel Pini 6-3 4-0 after Sebastian Exequiel Pini retired. Umpiry, "Gustavo Vellbach vs Sebastian Exequiel Pini — Chile F4 Qualifying Round of 16", https://umpiry.com/match/2015-04-13/pini-vs-vellbach-chile-f4-q16?utm_source=cite (as of 13 April 2015).