Alison Riske defeated Daria Saville 6-4 6-4 in the San Antonio quarter-final on hard.
Riske A. took it in straight sets.
Riske A. and Saville D. faced 3 of the same opponents in the last 12 months. Riske A. went 0–3 (0%) against them, Saville D. 4–0 (100%). Only 2 of the comparisons are context-comparable — too few for a conclusion.
Only 3 common opponents — small sample, treat as indicative.
Alison Riske beat Daria Saville 6-4 6-4. Umpiry, "Alison Riske vs Daria Saville — San Antonio Quarter-final", https://umpiry.com/match/2016-03-17/riske-vs-saville-san-antonio-qf?utm_source=cite (as of 17 March 2016).