Rares Teodor Pieleanu defeated Stefan Adrian Andreescu 7-5 6-2 in the M15 Bucharest 4 quarter-final on clay. The upset overturned the form book — Stefan Adrian Andreescu came in ranked #669, leading the head-to-head 3–1. Rares Teodor Pieleanu narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-07-22 | M25+H Bacau 1 | R32 | clay | Stefan Adrian Andreescu | 6-1 6-3 |
| 2025-07-15 | M15 Slobozia 1 | R32 | clay | Rares Teodor Pieleanu | 2-6 6-4 6-4 |
| 2024-09-05 | M15 Constanta 2 | R16 | clay | Stefan Adrian Andreescu | 6-2 6-3 |
| 2023-05-22 | M15 Bucharest 1 | Q32 | clay | Stefan Adrian Andreescu | 4-6 6-4 14-12 |
Averages over each player's completed matches in the selected window (2 vs 9). 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