Louk Sorensen advanced when Moritz Baumann retired 6-4 3-2 in the Germany F1 qualifying round.
Sorensen L. advanced when Baumann M. retired.
Louk Sorensen beat Moritz Baumann 6-4 3-2 after Moritz Baumann retired. Umpiry, "Louk Sorensen vs Moritz Baumann — Germany F1 Qualifying Round", https://umpiry.com/match/2012-01-09/baumann-vs-sorensen-germany-f1-qf?utm_source=cite (as of 9 January 2012).