Daniel Vacek defeated Marcelo Rios 6-1 6-1 in the New Haven round of 16 on hard. The upset overturned the form book — Marcelo Rios came in leading the head-to-head 1–0, defending last year's round of 16. Daniel Vacek claimed a first win over Marcelo Rios in two meetings, levelling the head-to-head at 1–1.
Vacek D. took it in straight sets.
Vacek D. and Rios M. faced 1 of the same opponent in the last 12 months. Vacek D. went 0–1 (0%) against them, Rios M. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Daniel Vacek beat Marcelo Rios 6-1 6-1. Umpiry, "Daniel Vacek vs Marcelo Rios — New Haven Round of 16", https://umpiry.com/match/1996-08-12/rios-vs-vacek-new-haven-r16?utm_source=cite (as of 12 August 1996).