David Volfson defeated Kyle Mautner 1-6 6-4 6-3 in the USA F20 round of 32 on clay.
Volfson D. came through in three sets.
David Volfson beat Kyle Mautner 1-6 6-4 6-3. Umpiry, "David Volfson vs Kyle Mautner — USA F20 Round of 32", https://umpiry.com/match/2015-06-29/mautner-vs-volfson-usa-f20-r32?utm_source=cite (as of 29 June 2015).