31.10.19 | 1/4 | Cheng-Peng Hsieh/Tsung-Hua Yang | Ji Sung Nam/Min-Kyu Song | 1-6, 7-65, 11-9 | | match details | Shenzhen Challenger | Hard |
30.10.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Chuhan Wang/Di Wu | 1-6, 6-1, 10-7 | | match details |
27.10.19 | fin | Mikhail Elgin/Denis Istomin | Ji Sung Nam/Min-Kyu Song | 3-6, 6-4, 10-6 | | match details | Liuzhou Challenger | Hard |
25.10.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Yan Bai/Yunseong Chung | 6-3, 6-4 | | match details |
24.10.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Xin Gao/Aoran Wang | 6-4, 6-3 | | match details |
23.10.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Huixin Wang/Linang Xiao | 6-2, 6-3 | | match details |
19.10.19 | 1/2 | Alex Bolt/Matt Reid | Ji Sung Nam/Min-Kyu Song | 3-6, 6-4, 10-4 | | match details | Ningboo Challenger | Hard |
17.10.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Steven Diez/Fabien Reboul | 7-64, 6-0 | | match details |
16.10.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Mao-Xin Gong/Ze Zhang | 6-74, 6-3, 11-9 | | match details |
07.09.19 | fin | Matthew Ebden/Divij Sharan | Ji Sung Nam/Min-Kyu Song | 7-64, 5-7, 10-3 | | match details | Jinan Challenger | Hard |
06.09.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Xin Gao/Runhao Hua | 6-2, 6-2 | | match details |
05.09.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Max Purcell/Luke Saville | 6-4, 6-2 | | match details |
03.09.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Sanchai Ratiwatana/Sonchat Ratiwatana | 5-7, 6-2, 10-8 | | match details |
11.08.19 | fin | Ji Sung Nam/Min-Kyu Song | Mao-Xin Gong/Ze Zhang | 6-3, 3-6, 14-12 | | match details | Yokkaichi Challenger | Hard |
10.08.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Shintaro Imai/Yusuke Takahashi | 6-2, 6-4 | | match details |
08.08.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Yunseong Chung/Tung-Lin Wu | 5-7, 7-5, 11-9 | | match details |
07.08.19 | 1st round | Ji Sung Nam/Min-Kyu Song | John-Paul Fruttero/Ruben Gonzales | 6-2, 6-4 | | match details |
03.08.19 | fin | Arjun Kadhe/Saketh-Sai Myneni | Ji Sung Nam/Min-Kyu Song | 6-3, 0-6, 10-6 | | match details | Chengdu Challenger | Hard |
02.08.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Harri Heliovaara/Toshihide Matsui | 6-4, 6-1 | | match details |
01.08.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | John-Paul Fruttero/Ruben Gonzales | 6-4, 7-61 | | match details |
30.07.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Hanyi Liu/Chukang Wang | 6-2, 6-2 | | match details |
20.05.19 | fin | Ji Sung Nam/Min-Kyu Song | Sanchai Ratiwatana/Sonchat Ratiwatana | 7-68, 6-1 | | match details | M25 Nonthaburi | Hard |
20.05.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Yuttana Charoenphon/Worarin Kumthonkittikul | 6-1, 6-0 | | match details |
20.05.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Rio Noguchi/Ryota Tanuma | 6-1, 6-0 | | match details |
20.05.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Blake Ellis/Yu Hsiou Hsu | 6-3, 6-1 | | match details |
19.05.19 | fin | Cheng-Peng Hsieh/Christopher Rungkat | Ji Sung Nam/Min-Kyu Song | 6-3, 3-6, 10-6 | | match details | Gwangju Challenger | Hard |
18.05.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | N.Sriram Balaji/Jonathan Erlich | 3-6, 6-3, 10-7 | | match details |
16.05.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Evan King/Nathan Pasha | 6-4, 6-0 | | match details |
15.05.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Seon Yong Han/Cheong-Eui Kim | 6-3, 6-2 | | match details |
10.05.19 | 1/4 | Cheng-Peng Hsieh/Christopher Rungkat | Ji Sung Nam/Min-Kyu Song | 6-3, 6-4 | | match details | Busan Challenger | Hard |
08.05.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Ruben Gonzales/Sanchai Ratiwatana | 7-5, 6-2 | | match details |
02.05.19 | 1/4 | Ramkumar Ramanathan/Brayden Schnur | Ji Sung Nam/Min-Kyu Song | 6-3, 5-7, 10-6 | | match details | Seoul Challenger | Hard |
01.05.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Ricardas Berankis/Toshihide Matsui | 6-2, 6-1 | | match details |
11.03.19 | fin | Ji Sung Nam/Min-Kyu Song | Shintaro Imai/Takuto Niki | 4-6, 7-64, 10-7 | | match details | M15 Nishi | Hard |
11.03.19 | 1st round | Ji Sung Nam/Min-Kyu Song | Yuki Mochizuki/Hiroki Yata | 6-72, 6-4, 10-7 | | match details |
11.03.19 | 1/4 | Ji Sung Nam/Min-Kyu Song | Yuta Shimizu/Naoki Tajima | 6-1, 6-75, 11-9 | | match details |
11.03.19 | 1/2 | Ji Sung Nam/Min-Kyu Song | Sora Fukuda/Seong Chan Hong | 7-64, 6-1 | | match details |