Thomas Muster defeated Byron Black 3-6 6-3 2-6 6-3 6-1 in the ZIM vs AUT round robin on hard. The upset overturned the form book — Byron Black came in leading the head-to-head 1–0. Thomas Muster claimed a first win over Byron Black in two meetings, levelling the head-to-head at 1–1.
Muster T. came through in five sets.
Muster T. and Black B. faced 3 of the same opponents in the last 12 months. Muster T. went 1–4 (20%) against them, Black B. 1–2 (33%). Results against comparable opponents are close (1 : 1 better-results split).
Only 3 common opponents — small sample, treat as indicative.
Hard: Muster T. leads 1–0 · Carpet: Black B. leads 1–0
Thomas Muster beat Byron Black 3-6 6-3 2-6 6-3 6-1. Umpiry, "Thomas Muster vs Byron Black — ZIM vs AUT Round Robin", https://umpiry.com/match/1997-09-19/black-vs-muster-zim-vs-aut-rr?utm_source=cite (as of 19 September 1997).