Alexander Volkov defeated Andrei Cherkasov 6-1 6-3 in the Milan round of 32 on carpet. The upset overturned the form book — Andrei Cherkasov came in leading the head-to-head 2–0, defending last year's semi-final. Alexander Volkov claimed a first win over Andrei Cherkasov in three meetings, narrowing the head-to-head to 2–1.
Volkov A. took it in straight sets.
Volkov A. and Cherkasov A. faced 3 of the same opponents in the last 12 months. Volkov A. went 1–2 (33%) against them, Cherkasov A. 1–2 (33%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Carpet: level 1–1 · Hard: Cherkasov A. leads 1–0
Alexander Volkov beat Andrei Cherkasov 6-1 6-3. Umpiry, "Alexander Volkov vs Andrei Cherkasov — Milan Round of 32", https://umpiry.com/match/1993-02-08/cherkasov-vs-volkov-milan-r32?utm_source=cite (as of 8 February 1993).