Bradley Klahn defeated Tennys Sandgren 5-7 6-4 6-4 in the USA F8 semi-final on hard. The result followed the form book — Bradley Klahn came in leading the head-to-head 1–0. Bradley Klahn extended the head-to-head to 2–0.
Klahn B. came through in three sets.
Bradley Klahn beat Tennys Sandgren 5-7 6-4 6-4. Umpiry, "Bradley Klahn vs Tennys Sandgren — USA F8 Semi-final", https://umpiry.com/match/2013-03-18/klahn-vs-sandgren-usa-f8-sf?utm_source=cite (as of 18 March 2013).