Zarina Diyas defeated Kaia Kanepi 6-4 4-6 6-4 in the Stuttgart qualifying final on clay. The upset overturned the form book — Kaia Kanepi came in leading the head-to-head 1–0. Zarina Diyas claimed a first win over Kaia Kanepi in two meetings, levelling the head-to-head at 1–1.
Diyas Z. came through in three sets.
Diyas Z. and Kanepi K. faced 4 of the same opponents in the last 12 months. Diyas Z. went 2–3 (40%) against them, Kanepi K. 1–3 (25%). Results against comparable opponents are close (2 : 1 better-results split).
Only 4 common opponents — small sample, treat as indicative.
Zarina Diyas beat Kaia Kanepi 6-4 4-6 6-4. Umpiry, "Zarina Diyas vs Kaia Kanepi — Stuttgart Qualifying Final", https://umpiry.com/match/2018-04-23/diyas-vs-kanepi-stuttgart-q3?utm_source=cite (as of 23 April 2018).