Belinda Bencic defeated Alison Riske 6-4 6-3 in the Australian Open round of 128 on hard. The upset overturned the form book — Alison Riske came in leading the head-to-head 1–0, defending last year's round of 128, but Belinda Bencic had been the form player, winning 3 of their last 7 on hard. Belinda Bencic claimed a first win over Alison Riske in two meetings, levelling the head-to-head at 1–1.
Bencic B. took it in straight sets.
Bencic B. and Riske A. faced 6 of the same opponents in the last 12 months. Bencic B. went 3–4 (43%) against them, Riske A. 0–6 (0%). Bencic B. came out better against 2 of 5 comparable opponents, Riske A. against 0 — though 1 of those edges carries caveats (retirement).
Belinda Bencic beat Alison Riske 6-4 6-3. Umpiry, "Belinda Bencic vs Alison Riske — Australian Open Round of 128", https://umpiry.com/match/2016-01-18/bencic-vs-riske-australian-open-r128?utm_source=cite (as of 18 January 2016).