Sloane Stephens defeated Daria Saville 6-4 6-3 in the Charleston round of 16 on clay. The result followed the form book — Sloane Stephens came in defending last year's round of 32.
Stephens S. took it in straight sets.
Stephens S. and Saville D. faced 5 of the same opponents in the last 12 months. Stephens S. went 4–2 (67%) against them, Saville D. 1–5 (17%). Stephens S. came out clearly better against 3 of 5 comparable opponents, Saville D. against 1 — though 1 of those edges carries caveats (retirement).
Sloane Stephens beat Daria Saville 6-4 6-3. Umpiry, "Sloane Stephens vs Daria Saville — Charleston Round of 16", https://umpiry.com/match/2016-04-07/saville-vs-stephens-charleston-r16?utm_source=cite (as of 7 April 2016).