| Chinese Taipei Open 2019, MS | 2019/09/05 07:45 | Lu, C. H. v Wong, Wing Ki Vincent | W | 2-1 |
| Chinese Taipei Open 2019, MS | 2019/09/04 07:05 | Yin Chak Chan v Lu, C. H. | W | 0-2 |
| Australian Open Qual | 2019/06/04 03:40 | Joo Ven Soong v Lu, C. H. | L | 2-1 |
| Australian Open Qual | 2019/06/04 01:10 | Lu, C. H. v Emre Lale | W | 2-0 |
| Asia Championships | 2019/04/24 06:00 | Lu, C. H. v Lin, Dan | L | 0-2 |
| Vietnam Int. | 2019/04/12 06:30 | Chico Aura Dwi Wardoyo v Lu, C. H. | L | 2-0 |
| Vietnam Int. | 2019/04/11 11:10 | Lu, C. H. v Duc Phat Le | W | 2-1 |
| China Masters | 2019/03/12 10:00 | Liu, H. C. v Lu, C. H. | L | 2-1 |
| Chinese Taipei Open 2019, MS | 2019/09/05 09:15 | Koki Watanabe v Kean Yew Loh | W | 2-1 |
| Chinese Taipei Open 2019, MS | 2019/09/04 12:30 | Yang, Chih Chieh v Koki Watanabe | W | 0-2 |
| Akita Masters 2019, MS | 2019/08/16 02:15 | Igarashi, Yu v Koki Watanabe | L | 2-1 |
| Akita Masters 2019, MS | 2019/08/15 05:25 | Koki Watanabe v Thongnuam, Pannawit | W | 2-0 |
| Akita Masters 2019, MS | 2019/08/14 02:10 | Koki Watanabe v Koga, Minoru | W | 2-0 |
| US Open 2019, MS | 2019/07/11 22:00 | Lee, Dong Keun v Koki Watanabe | L | 2-1 |
| US Open 2019, MS | 2019/07/10 22:10 | Svendsen, Victor v Koki Watanabe | W | 0-2 |
| Canada Open | 2019/07/06 21:30 | Koki Watanabe v Li, S. F. | L | 1-2 |