Simon Greul advanced when Clinton Thomson retired 6-1 4-1 in the Germany F4 qualifying round.
Greul S. advanced when Thomson C. retired.
Simon Greul beat Clinton Thomson 6-1 4-1 after Clinton Thomson retired. Umpiry, "Simon Greul vs Clinton Thomson — Germany F4 Qualifying Round", https://umpiry.com/match/2008-01-28/greul-vs-thomson-germany-f4-qf?utm_source=cite (as of 28 January 2008).