Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF - M25 Santo Domingo | 2021/05/31 15:30 | Ying Hou v Jachuck, Ronan | 1-6,1-6 |
| ITF - M25 Santo Domingo | 2021/06/06 15:00 | Jachuck, Ronan v Mateo Barreiros Reyes | 6-4,6-1 |
| ITF - M25 Santo Domingo | 2021/06/01 13:00 | Issei Okamura v Jachuck, Ronan | 3-6,7-5,10-7 |
| ITF - M25 Santo Domingo | 2021/05/31 15:30 | Ying Hou v Jachuck, Ronan | 1-6,1-6 |
| ITF - M25 Santo Domingo | 2021/05/30 17:00 | Cimino, Ivo v Jachuck, Ronan | 0-6,0-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/17 15:30 | Matthew Segura v Jachuck, Ronan | 6-4,7-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/16 17:00 | Drew Van Orderlain v Jachuck, Ronan | 3-6,3-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/15 14:00 | Evan Bynoe v Jachuck, Ronan | 2-6,0-5 |
| UTR Pro Tennis Series Atlanta | 2021/04/14 18:30 | Kessler, Mcclain v Jachuck, Ronan | 3-6,4-6 |
| ITF - M25 Santo Domingo | 2021/06/06 15:00 | Ying Hou v Banov, Danail | 6-3,6-2 |
| ITF - M25 Santo Domingo | 2021/05/31 15:30 | Ying Hou v Jachuck, Ronan | 1-6,1-6 |
| ITF - M15 Antalya | 2020/12/22 06:30 | Daljev, Pavle v Ying Hou | 6-3,6-2 |
| ITF - M15 Antalya | 2020/12/21 10:50 | Cetin, Guney Ege v Ying Hou | 4-6,3-6 |
| ITF - M15 Antalya | 2020/12/15 11:00 | Filip Misolic v Ying Hou | 6-1,6-1 |
| ITF - M25 Vale Do Lobo | 2020/10/26 10:00 | Ying Hou v Baltensperger, Raphael | 2-6,1-6 |
| Toulouse, Singles M-ITF-FRA-05A | 2020/03/09 09:45 | Musialek, Alexis v Ying Hou | 6-2,6-4 |
| Barnstaple, Singles Qualifying M-ITF-GBR-01A | 2020/02/09 11:15 | Ying Hou v Adam Jones | 2-6,2-6 |