Tatjana Maria defeated Su Wei Hsieh 7-5 6-3 in the Cincinnati qualifying round of 64 on hard. The upset overturned the form book — Su Wei Hsieh came in leading the head-to-head 1–0, but Tatjana Maria had been the form player, winning 5 of their last 6 on hard. Tatjana Maria claimed a first win over Su Wei Hsieh in two meetings, levelling the head-to-head at 1–1.
Maria T. took it in straight sets.
Maria T. and Hsieh S. faced 8 of the same opponents in the last 12 months. Maria T. went 3–7 (30%) against them, Hsieh S. 6–2 (75%). Hsieh S. came out better against 4 of 7 comparable opponents, Maria T. against 0 — though 1 of those edges carries caveats (retirement).
Hard: Maria T. leads 1–0 · Grass: Hsieh S. leads 1–0
Tatjana Maria beat Su Wei Hsieh 7-5 6-3. Umpiry, "Tatjana Maria vs Su Wei Hsieh — Cincinnati Qualifying Round of 64", https://umpiry.com/match/2018-08-11/hsieh-vs-maria-cincinnati-q64?utm_source=cite (as of 11 August 2018).