Monica Niculescu defeated Mariana Duque Marino 6-2 6-2 in the Krakow 100K round of 32 on hard. The upset overturned the form book — Mariana Duque Marino came in leading the head-to-head 3–1. Monica Niculescu narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-09 | Rome | R64 | clay | Mariana Duque Marino | 6-4 6-1 |
| 2015-06-01 | Marseille $100K | SF | clay | Monica Niculescu | 6-3 3-6 6-3 |
| 2008-08-04 | Monterrey 100K | R16 | hard | Mariana Duque Marino | 4-6 6-3 6-4 |
| 2008-04-14 | Estoril | R32 | clay | Mariana Duque Marino | 6-4 6-3 |
Averages over each player's completed matches in the selected window (195 vs 164). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About