Joao Sousa defeated Dominic Thiem 6-4 7-6 in the St. Petersburg semi-final on carpet. The upset overturned the form book — Dominic Thiem came in leading the head-to-head 3–0. Joao Sousa claimed a first win over Dominic Thiem in four meetings, narrowing the head-to-head to 3–1.
Sousa J. took it in straight sets.
Sousa J. and Thiem D. faced 4 of the same opponents in the last 12 months. Sousa J. went 2–4 (33%) against them, Thiem D. 1–4 (20%). Results against comparable opponents are close (1 : 0 better-results split).
Only 4 common opponents — small sample, treat as indicative.
Carpet: Sousa J. leads 1–0 · Clay: Thiem D. leads 1–0 · Hard: Thiem D. leads 2–0
Joao Sousa beat Dominic Thiem 6-4 7-6(5). Umpiry, "Joao Sousa vs Dominic Thiem — St. Petersburg Semi-final", https://umpiry.com/match/2015-09-26/sousa-vs-thiem-st-petersburg-sf?utm_source=cite (as of 26 September 2015).