Ivan Lendl defeated Brad Pearce 6-4 6-4 5-7 6-4 in the Wimbledon quarter-final on grass.
Lendl I. came through in four sets.
Ivan Lendl beat Brad Pearce 6-4 6-4 5-7 6-4. Umpiry, "Ivan Lendl vs Brad Pearce — Wimbledon Quarter-final", https://umpiry.com/match/1990-06-25/lendl-vs-pearce-wimbledon-qf?utm_source=cite (as of 25 June 1990).