Peter Gojowczyk defeated Tennys Sandgren 6-2 4-6 6-3 in the US Open qualifying round of 128 on hard.
Gojowczyk P. came through in three sets.
Peter Gojowczyk beat Tennys Sandgren 6-2 4-6 6-3. Umpiry, "Peter Gojowczyk vs Tennys Sandgren — US Open Qualifying Round of 128", https://umpiry.com/match/2013-08-21/gojowczyk-vs-sandgren-us-open-q128?utm_source=cite (as of 21 August 2013).