Ashleigh Barty defeated Alison Riske 6-3 1-6 6-4 in the Australian Open round of 16 on hard. The upset overturned the form book — Alison Riske came in leading the head-to-head 2–0, defending last year's round of 128, but Ashleigh Barty had been the form player, winning 7 of their last 7 on hard. Ashleigh Barty claimed a first win over Alison Riske in three meetings, narrowing the head-to-head to 2–1.
Barty A. came through in three sets.
Barty A. and Riske A. faced 12 of the same opponents in the last 12 months. Barty A. went 14–4 (78%) against them, Riske A. 7–6 (54%). Barty A. came out better against 5 of 12 comparable opponents, Riske A. against 2.
Hard: Barty A. leads 1–0 · Grass: Riske A. leads 2–0
Ashleigh Barty beat Alison Riske 6-3 1-6 6-4. Umpiry, "Ashleigh Barty vs Alison Riske — Australian Open Round of 16", https://umpiry.com/match/2020-01-26/barty-vs-riske-australian-open-r16?utm_source=cite (as of 26 January 2020).