Brian Dunn advanced when Thomas Shimada retired 6-0 in the USA 1 Masters 4 round of 64.
Dunn B. advanced when Shimada T. retired.
Brian Dunn beat Thomas Shimada 6-0 after Thomas Shimada retired. Umpiry, "Brian Dunn vs Thomas Shimada — USA 1 Masters 4 Round of 64", https://umpiry.com/match/1996-04-05/dunn-vs-shimada-usa-1-masters-4-r64?utm_source=cite (as of 5 April 1996).