Luka Gregorc defeated Michael Kohlmann 6-2 6-4 in the San Jose qualifying round of 16 on hard. The upset overturned the form book — Michael Kohlmann came in leading the head-to-head 1–0. Luka Gregorc claimed a first win over Michael Kohlmann in two meetings, levelling the head-to-head at 1–1.
Gregorc L. took it in straight sets.
Luka Gregorc beat Michael Kohlmann 6-2 6-4. Umpiry, "Luka Gregorc vs Michael Kohlmann — San Jose Qualifying Round of 16", https://umpiry.com/match/2011-02-05/gregorc-vs-kohlmann-san-jose-q16?utm_source=cite (as of 5 February 2011).