Stadium: Court 1 Round: 25
| ATP Istanbul | 2018/04/30 14:00 | Cem Ilkel v Paolo Lorenzi | 2-6,3-6 |
| Challenger Anning | 2018/04/23 04:20 | Vasek Pospisil v Cem Ilkel | 6-4,6-1 |
| Challenger Nanchang | 2018/04/18 03:00 | Cem Ilkel v Prajnesh Gunneswaran | 4-6,4-6 |
| Davis Cup | 2018/04/08 11:10 | Aljaz Bedene v Cem Ilkel | 7-6,6-2 |
| Davis Cup | 2018/04/07 10:00 | Mike Urbanija v Cem Ilkel | 2-6,1-6 |
| ITF Turkey F12 | 2018/04/01 07:30 | Cem Ilkel v Marko Miladinovic | 2-6,6-2,6-2 |
| ITF Turkey F12 | 2018/03/31 07:30 | Cem Ilkel v Marsel Ilhan | 6-4,7-6 |
| ITF Turkey F12 | 2018/03/30 08:30 | Cem Ilkel v Genaro Alberto Olivieri | 6-4,6-2 |
| Challenger Glasgow | 2018/04/30 10:00 | Jared Hiltzik v Daniel Brands | 3-6,4-6 |
| Challenger Tallahassee | 2018/04/24 15:00 | Jared Hiltzik v Michael Mmoh | 2-6,6-7 |
| Challenger Sarasota Qual | 2018/04/14 17:00 | Peter Torebko v Jared Hiltzik | 4-6,6-0,6-2 |
| ITF USA F10 | 2018/04/11 19:05 | Henry Craig v Jared Hiltzik | 6-1,7-6 |
| ITF USA F9 | 2018/04/03 14:00 | Jose Pereira v Jared Hiltzik | 6-7,7-6,6-4 |
| Challenger Drummondville | 2018/03/16 19:00 | Denis Kudla v Jared Hiltzik | 6-2,6-1 |
| Challenger Drummondville | 2018/03/15 14:00 | Jared Hiltzik v Henri Laaksonen | 6-4,6-4 |
| Challenger Drummondville | 2018/03/13 19:45 | Nicola Kuhn v Jared Hiltzik | 4-6,3-6 |