Niels Lootsma defeated Robert Constantinovici 6-4 7-5 in the Netherlands F5 qualifying round on clay. Niels Lootsma extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-19 | Germany F17 | R32 | hard | Niels Lootsma | 7-5 6-4 |
| 2013-08-19 | Netherlands F5 | R32 | clay | Robert Constantinovici | 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.