Stadium: Court 2 Round: 27 Ground: Hardcourt indoor
| Challenger Yokkaichi | 2019/08/05 05:05 | Shintaro Imai v Naoki Tajima | 6-2,6-3 |
| ITF M25 Nonthaburi | 2019/07/25 07:10 | Naoki Tajima v Yuta Shimizu | 0-6,4-6 |
| ITF M25 Nonthaburi | 2019/07/24 02:00 | Niki Kaliyanda Poonacha v Naoki Tajima | 4-6,6-4,1-6 |
| ITF M15 Saarlouis | 2019/07/02 12:00 | Naoki Tajima v Dominik Boehler | 2-6,2-6 |
| ITF M15 Kamen | 2019/06/26 11:30 | Naoki Tajima v Luca Staeheli | 5-7,0-6 |
| ITF M15 Balatonalmadi | 2019/06/19 09:50 | Ryan Nijboer v Naoki Tajima | 6-3,6-2 |
| ITF M15 Irpin | 2019/05/28 07:00 | Oleg Prihodko v Naoki Tajima | 6-0,6-1 |
| ITF M15 Irpin | 2019/05/21 12:40 | Nikita Mashtakov v Naoki Tajima | 6-0,7-6 |
| ITF M15 Tabarka | 2019/08/06 08:00 | Yanki Erel v Franco Feitt | 4-6,2-6 |
| ATP Antalya | 2019/06/22 11:10 | Viktor Troicki v Yanki Erel | 6-1,7-5 |
| ITF M15 Antalya | 2019/05/22 09:05 | Koray Kirci v Yanki Erel | 6-4,6-4 |
| ITF M15 Antalya | 2019/05/16 09:15 | Dimitar Kuzmanov v Yanki Erel | 6-3,6-4 |
| ITF M15 Antalya | 2019/05/15 07:15 | Yanki Erel v Aleksei Khomich | 6-2,6-3 |
| ITF M15 Antalya | 2019/05/09 09:25 | Yanki Erel v Ergi Kirkin | 2-6,0-6 |
| ITF M15 Antalya | 2019/05/07 08:00 | Yanki Erel v Koray Kirci | 6-7,6-1,6-2 |
| Challenger Izmir Qual | 2017/09/16 08:55 | Robin Kern v Yanki Erel | 6-7,6-1,6-0 |