Round: 45 Ground: Hardcourt outdoor
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/07 04:00 | Shintaro Imai v Katayama, Sho | 6-2,6-3 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/06 02:25 | Katayama, Sho v Kawahashi, Yuta | 6-3,6-1 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/05 03:00 | Katayama, Sho v Kawahashi, Yuta | 4-6,5-7 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/05 01:00 | Katayama, Sho v Ono, Masayoshi | 6-4,6-4 |
| Canada F7, Singles | 2018/09/12 14:00 | Findel-Hawkins, Jack v Katayama, Sho | 6-3,6-3 |
| Canada F7, Singles | 2018/09/11 19:45 | Emmett Ward v Katayama, Sho | 1-6,1-6 |
| ITF Canada F6 | 2018/09/04 17:00 | Alafia Ayeni v Katayama, Sho | 6-2,6-7,6-4 |
| ITF Guam F1 | 2018/06/22 00:00 | Ehara, Hiroyasu v Katayama, Sho | 7-6,6-4 |