Scott Griekspoor advanced when Caio Silva retired 6-4 1-0 in the Latvia F1 qualifying round.
Griekspoor S. advanced when Silva C. retired.
Scott Griekspoor beat Caio Silva 6-4 1-0 after Caio Silva retired. Umpiry, "Scott Griekspoor vs Caio Silva — Latvia F1 Qualifying Round", https://umpiry.com/match/2017-07-31/griekspoor-vs-silva-latvia-f1-qf?utm_source=cite (as of 31 July 2017).