Ivo Minar defeated Cedrik Marcel Stebe 6-4 1-6 6-3 in the Stuttgart qualifying round of 16 on grass. The upset overturned the form book — Cedrik Marcel Stebe came in defending last year's quarter-final.
Minar I. came through in three sets.
Ivo Minar beat Cedrik Marcel Stebe 6-4 1-6 6-3. Umpiry, "Ivo Minar vs Cedrik Marcel Stebe — Stuttgart Qualifying Round of 16", https://umpiry.com/match/2013-07-07/minar-vs-stebe-stuttgart-q16?utm_source=cite (as of 7 July 2013).