Stadium: Pista Central Round: 29 Ground: Hardcourt outdoor
| Challenger Szczecin MD | 2017/09/13 12:00 | Koolhof W / Sitak A v Andreozzi G / Behar A | 7-5,6-4 |
| Challenger Alicante MD | 2018/04/05 09:30 | Koolhof W / Sitak A v Martinez / Vega | 5-7,6-4,10-5 |
| Challenger Alicante MD | 2018/04/02 12:35 | Koolhof W / Sitak A v Cervantes I / Marrero D | 6-4,6-1 |
| Irving, USA, Doubles | 2018/03/16 23:10 | Petzschner P / Peya A v Koolhof W / Sitak A | 6-4,7-5 |
| Irving, USA, Doubles | 2018/03/15 22:25 | Koolhof W / Sitak A v Krajicek/Lacko | 6-1,6-4 |
| Irving, USA, Doubles | 2018/03/14 19:00 | Inglot/Skupski v Koolhof W / Sitak A | 6-3,1-6,6-10 |
| Sao Paulo, Brazil, Doubles | 2018/03/04 17:20 | Koolhof W / Sitak A v Delbonis F / Gonzalez M | 4-6,2-6 |
| Sao Paulo, Brazil, Doubles | 2018/03/03 20:00 | Berlocq C / Kicker N v Koolhof W / Sitak A | 3-6,3-6 |
| Sao Paulo, Brazil, Doubles | 2018/02/28 20:45 | Koolhof W / Sitak A v 칼발레스 바에나 로 / 가르시아-로페즈 구 | 7-5,6-4 |
| Challenger Alicante MD | 2018/04/05 14:30 | Andreozzi G / Behar A v Motti A / Travaglia S | 6-0,6-2 |
| Challenger Marbella MD | 2018/03/31 16:40 | 클리잔 마 / 코발릭 조 v Andreozzi G / Behar A | 3-6,4-6 |
| Challenger Marbella MD | 2018/03/29 15:00 | 드조코비치 M / 고메즈-헤레라 C v Andreozzi G / Behar A | 6-1,5-7,5-10 |
| Challenger Marbella MD | 2018/03/28 15:05 | Brown/O'Mara v Andreozzi G / Behar A | 2-6,4-6 |
| Challenger Szczecin MD | 2017/09/13 12:00 | Koolhof W / Sitak A v Andreozzi G / Behar A | 7-5,6-4 |
| Challenger Genova MD | 2017/09/10 14:00 | Andreozzi G / Behar A v 푸에츠 T / 스트루프 J-L | 6-7,6-7 |
| Challenger Genova MD | 2017/09/09 09:00 | Brown D / Mies A v Andreozzi G / Behar A | 3-6,7-6,10-12 |
| Challenger Genova MD | 2017/09/07 13:40 | 발라즈 A / 푸크소빅스 M v Andreozzi G / Behar A | 5-7,4-6 |