Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| ITF M15 Tabarka | 2019/05/20 13:00 | Alex Knaff v Mauro De Maio | 6-7,6-2,8-10 |
| ITF USA F35 | 2018/12/03 15:00 | Paul Oosterbaan v Alex Knaff | 7-6,6-4 |
| ITF USA F32 | 2018/11/15 16:00 | Alex Knaff v Ricardo Rodriguez-Pace | 2-6,2-6 |
| ITF Belgium F8 | 2018/08/15 09:30 | Germain Gigounon v Alex Knaff | 6-0,6-2 |
| ITF Belgium F8 | 2018/08/14 09:00 | Guillaume Dermiens v Alex Knaff | 1-6,4-6 |
| ITF Germany F11 | 2018/08/08 10:00 | Alex Knaff v Evan Furness | 0-6,7-5,3-6 |
| ITF Germany F11 | 2018/08/07 09:00 | Marco Neubau v Alex Knaff | 4-6,7-5,3-6 |
| ITF Belgium F6 | 2018/08/03 13:05 | Maxime Chazal v Alex Knaff | 6-1,6-1 |
| ITF M25 Memphis | 2019/08/12 15:00 | Joshua Peck v Jason Kros | 6-3,7-5 |
| ITF M25 Memphis | 2019/08/12 15:00 | Maxwell Giddens v Jason Kros | 0-6,0-6 |
| ITF M25 Edwardsville | 2019/08/06 15:45 | Jason Kros v Joshua Howard-Tripp | 3-6,2-6 |
| ITF M25 Edwardsville | 2019/08/05 14:00 | Mwendwa Mbithi v Jason Kros | 4-6,6-4,9-11 |
| ITF M25 Decatur | 2019/07/30 15:00 | Kareem Allaf v Jason Kros | 6-3,6-4 |
| ITF M15 Pittsburgh | 2019/07/03 17:55 | Jason Kros v Marco Brugnerotto | 1-6,6-7 |
| ITF M15 Pittsburgh | 2019/07/02 14:00 | Luke Vandecasteele v Jason Kros | 4-6,3-6 |
| ITF M15 Pittsburgh | 2019/07/01 14:00 | Volodymyr Uzhylovskyi v Jason Kros | 6-7,1-6 |