Caroline Garcia defeated Aryna Sabalenka 6-4 6-4 in the Zhuhai round robin on hard. The upset overturned the form book — Aryna Sabalenka came in leading the head-to-head 2–1. That levelled the head-to-head at 2–2.
Garcia C. took it in straight sets.
Garcia C. and Sabalenka A. faced 20 of the same opponents in the last 12 months. Garcia C. went 12–10 (55%) against them, Sabalenka A. 17–7 (71%). Sabalenka A. came out better against 7 of 19 comparable opponents, Garcia C. against 3 — though 2 of those edges carry caveats (lower-tier event).
Caroline Garcia beat Aryna Sabalenka 6-4 6-4. Umpiry, "Caroline Garcia vs Aryna Sabalenka — Zhuhai Round Robin", https://umpiry.com/match/2018-11-02/garcia-vs-sabalenka-zhuhai-rr?utm_source=cite (as of 2 November 2018).