Round: 25 Ground: Clay
| ITF Italy F7 | 2017/04/03 09:50 | Raul Brancaccio v Williams, Rhyne | 7-5,6-0 |
| ITF Italy F6 | 2017/03/29 11:20 | Williams, Rhyne v Stefanos Tsitsipas | 4-6,6-1,2-6 |
| ITF Italy F6 | 2017/03/27 11:15 | Javier Barranco Cosano v Williams, Rhyne | 4-6,4-6 |
| ITF USA F9 | 2017/03/02 15:00 | Dominik Koepfer v Williams, Rhyne | 2-6,6-0,6-1 |
| ITF USA F8 | 2017/02/25 17:00 | Williams, Rhyne v Corentin Denolly | 0-6,4-6 |
| ITF USA F8 | 2017/02/24 17:30 | Ramkumar Ramanathan v Williams, Rhyne | 4-6,5-7 |
| ITF USA F8 | 2017/02/23 20:30 | Genaro Alberto Olivieri v Williams, Rhyne | 3-6,0-6 |
| ITF USA F8 | 2017/02/23 16:40 | Williams, Rhyne v Kaichi Uchida | 6-3,6-3 |
| ITF Spain F10 Qual | 2017/04/03 11:50 | Makiguchi, Ryusei v Fermosell, Jaime | 4-6,6-7 |
| ITF Spain F10 Qual | 2017/04/02 08:00 | Makiguchi, Ryusei v Mardones, Bruno | 7-5,6-4 |
| ITF Croatia F4 | 2017/03/28 12:30 | Makiguchi, Ryusei v Ignacio Monzon | 6-1,1-6,2-6 |
| ITF Croatia F3 | 2017/03/22 09:30 | Bellotti, Riccardo v Makiguchi, Ryusei | 6-2,6-1 |
| ITF Croatia F3 | 2017/03/20 12:30 | Makiguchi, Ryusei v Schmidt, Gabriel | 7-6,2-6,6-2 |
| ITF Croatia F3 | 2017/03/20 09:00 | Makiguchi, Ryusei v Gregor Ramskogler | 6-2,6-4 |
| ITF Croatia F3 | 2017/03/19 08:30 | Makiguchi, Ryusei v Aichhorn, Jakob | 6-3,6-3 |
| ITF Croatia F3 | 2017/03/18 10:30 | Makiguchi, Ryusei v Schroll, Philipp | 6-0,6-2 |