Stadium: Court 2 Round: 2
| Challenger Granby | 2023/07/17 17:05 | 싱클라이어, 콜린 v Sekulic, Philip | 3-6,4-6 |
| Challenger Granby | 2023/07/16 22:30 | 싱클라이어, 콜린 v 담, 마르틴 | 6-7,7-6,6-3 |
| Challenger Chicago | 2023/07/10 17:05 | Jasika, Omar v 싱클라이어, 콜린 | 6-4,6-4 |
| Challenger Chicago | 2023/07/09 19:05 | 키르치헤머, 스트롱 v 싱클라이어, 콜린 | 6-7,4-6 |
| Challenger Bloomfield Hills | 2023/07/03 20:50 | 주, 에반 v 싱클라이어, 콜린 | 7-5,1-6,6-2 |
| Challenger Bloomfield Hills | 2023/07/03 14:15 | Maloney, Patrick v 싱클라이어, 콜린 | 7-6,6-7,3-6 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2023/06/20 16:00 | Neff, Adam v 싱클라이어, 콜린 | 4-6,7-5,7-5 |
| Challenger Palmas del Mar | 2023/06/14 15:00 | 드락슬, 리암 v 싱클라이어, 콜린 | 7-6,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/07/18 02:00 | 차로엔폰, 유타나 v Mitsuki Wei Kang Leong | 7-6,2-6,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/07/10 02:00 | Mitsuki Wei Kang Leong v Sornlaksup, Pawit | 6-3,5-7,6-10 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/07/09 04:50 | Mitsuki Wei Kang Leong v Teerapat Khantiweerawat | 6-0,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/07/03 06:00 | Mitsuki Wei Kang Leong v Patrik Oplustil | 6-7,5-7 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 05:20 | Mitsuki Wei Kang Leong v Teerapat Khantiweerawat | 6-3,6-0 |
| ITF M25 Nakhon Si Thammarat | 2023/06/14 02:00 | Sornlaksup, Pawit v Mitsuki Wei Kang Leong | 2-6,6-1,6-1 |
| ITF M25 Nakhon Si Thammarat | 2023/06/12 04:35 | Mitsuki Wei Kang Leong v Bayldon, Blake | 6-4,4-6,10-6 |
| ITF M25 Jakarta | 2023/06/08 03:05 | 리, 호앙 남 v Mitsuki Wei Kang Leong | 6-4,7-6 |