William Ball defeated Mitch Sprengelmeyer 7-6 6-3 in the USA 6 Masters 1 round of 64 on hard.
Ball W. took it in straight sets.
William Ball beat Mitch Sprengelmeyer 7-6 6-3. Umpiry, "William Ball vs Mitch Sprengelmeyer — USA 6 Masters 1 Round of 64", https://umpiry.com/match/1997-10-10/ball-vs-sprengelmeyer-usa-6-masters-1-r64?utm_source=cite (as of 10 October 1997).