| ITF M15 Parnu | 08/02 07:15 | 54 | 그란트, 윌리암 v Spiridon, Denis Constantin | 6-3,6-3 | |
| ITF M15 Parnu | 08/01 07:00 | 54 | Spiridon, Denis Constantin v Manusis, Edgars | 7-5,6-3 | |
| ITF M15 Lodz | 07/25 08:00 | 54 | 시가란, 티아고 v Spiridon, Denis Constantin | 6-3,7-6 | |
| ITF M15 Budva | 06/06 12:20 | 44 | Spiridon, Denis Constantin v Samuele Pieri | 7-5,6-7,8-10 | |
| ITF M15 Budva | 06/05 08:00 | 44 | Spiridon, Denis Constantin v Milo Gazivoda | Retired | |
| ITF M15 Budva | 05/29 09:30 | 44 | Spiridon, Denis Constantin v 쉬롤리크, 이고르 | 3-6,6-4,9-11 | |
| ITF M15 Ulcinj | 05/22 08:00 | 44 | 마제오, 안토니오 v Spiridon, Denis Constantin | 5-7,6-4,10-8 | |
| ITF M25 Santa Margherita | 05/10 11:00 | 54 | Bagnolini, Daniel v Spiridon, Denis Constantin | 6-1,6-4 | |
| ITF M15 Cairo | 04/18 09:00 | 62 | Spiridon, Denis Constantin v Roberto Miceli | 6-0,2-6,7-10 | |
| ITF M15 Cairo | 04/17 08:30 | 62 | El Feky, Karim v Spiridon, Denis Constantin | 4-6,6-1,7-10 | |
| ITF M15 Cairo | 04/10 08:00 | 62 | Spiridon, Denis Constantin v Hollender, Nicolas | 3-6,6-4,10-12 | |
| ITF M25 Opatija | 03/20 10:00 | 62 | Spiridon, Denis Constantin v 파티, 다니엘 | 4-6,6-3,1-10 | |
| ITF M25 Rovinj | 03/13 09:00 | 62 | Galik, Matej v Spiridon, Denis Constantin | 6-2,6-1 | |
| Challenger Turin | 02/27 10:50 | 45 | 브로우벨, 기지스 v Spiridon, Denis Constantin | 6-0,6-0 | |
| ITF M15 Monastir | 10/18 14:00 | 62 | 레이타노, 스테파노 v Spiridon, Denis Constantin | 4-6,6-1,10-3 | |
| ITF M15 Monastir | 10/18 09:30 | 62 | Spiridon, Denis Constantin v Kazakov, Ivan | 7-5,6-2 | |
| ITF M15 Monastir | 10/11 13:00 | 62 | Mikail Alimli v Spiridon, Denis Constantin | 7-6,6-3 | |
| ITF M15 Monastir | 10/11 08:00 | 62 | Spiridon, Denis Constantin v Mohamed Amin Oueslati | 6-2,6-2 | |
| ITF M15 Monastir | 10/10 10:30 | 62 | Spiridon, Denis Constantin v Fabian Hansch Mauritzson | 6-1,6-1 | |
| ITF M25 Uriage | 07/11 14:50 | 44 | Spiridon, Denis Constantin v Edouard Villoslada | 1-6,1-6 | |
| ITF M15 Novomoskovsk | 05/24 12:00 | 44 | 이바노브, 시몬 안토니 v Spiridon, Denis Constantin | 7-6,6-1 | |
| ITF M15 Novomoskovsk | 05/23 08:00 | 44 | Spiridon, Denis Constantin v Illya Maksymchuk | 7-6,3-6,10-8 | |
| ITF M15 Cancun | 02/17 14:00 | 44 | 스페크, 마티크 v Spiridon, Denis Constantin | 6-4,6-1 |