Diana Marcinkevica defeated Cagla Buyukakcay 2-6 6-4 6-4 in the Loughborough 25K round of 32 on hard. The upset overturned the form book — Cagla Buyukakcay came in ranked #423, leading the head-to-head 5–0. Diana Marcinkevica claimed a first win over Cagla Buyukakcay in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-19 | Florence SC $25K | R32 | hard | Cagla Buyukakcay | 7-6(6) 6-4 |
| 2014-03-31 | Edgbaston 25K | QF | hard | Cagla Buyukakcay | 6-2 6-3 |
| 2014-03-03 | Preston 25K | R32 | hard | Cagla Buyukakcay | 6-4 6-0 |
| 2012-04-18 | Fed Cup G2 RRB: LAT vs TUR | RR | clay | Cagla Buyukakcay | 6-2 6-0 |
| 2009-06-15 | Istanbul 10K | R16 | hard | Cagla Buyukakcay | 6-1 6-4 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About