Roman Ruppenthal advanced when Cameron Liggett retired 6-1 in the USA 3 Masters 4 round of 64.
Ruppenthal R. advanced when Liggett C. retired.
Roman Ruppenthal beat Cameron Liggett 6-1 after Cameron Liggett retired. Umpiry, "Roman Ruppenthal vs Cameron Liggett — USA 3 Masters 4 Round of 64", https://umpiry.com/match/1994-06-10/liggett-vs-ruppenthal-usa-3-masters-4-r64?utm_source=cite (as of 10 June 1994).