Challenger Yokohama Qual 02/26 01:00 46 Jimmy Wang v Shuichi Sekiguchi 6-2,6-7,2-6
Challenger Yokohama Qual 02/25 01:00 45 Yusuke Takahashi v Shuichi Sekiguchi 6-4,3-6,2-6
Challenger Kyoto 02/21 01:30 25 Tatsuma Ito v Shuichi Sekiguchi 6-2,6-3
Challenger Kyoto Qual 02/20 01:30 54 Shuichi Sekiguchi v Evgeny Karlovskiy 5-7,0-6
Challenger Kyoto Qual 02/19 01:00 46 Shuichi Sekiguchi v Yunosuke Tanaka 6-0,6-4
Challenger Kyoto Qual 02/18 03:00 45 Shuichi Sekiguchi v Shinta Fujii 6-1,7-5
Challenger - Bangkok 2 01/12 06:00 27 Daniel Altmaier v Shuichi Sekiguchi 6-4,6-1
Challenger - Bangkok 2 01/11 03:00 26 Shuichi Sekiguchi v Yannick Mertens 6-3,3-6,6-1
Challenger - Bangkok 2 01/09 08:20 25 Shuichi Sekiguchi v Phassawit Bura'ritta 6-1,6-4
ITF Hong Kong F1 01/04 02:00 26 Shuichi Sekiguchi v Anthony Jackie Tang Retired
ITF Hong Kong F1 01/03 03:15 25 Shuichi Sekiguchi v Li-Wie Tan 6-4,6-2
ITF Hong Kong F5 12/30 23:00 29 Shuichi Sekiguchi v Sora Fukuda 6-0,6-7,6-7
ITF Hong Kong F5 12/29 23:00 28 Shuichi Sekiguchi v Shintaro Imai 7-6,6-3
ITF Hong Kong F5 12/28 23:00 27 Shuichi Sekiguchi v Geoffrey Blancaneaux 6-0,6-4
ITF Hong Kong F5 12/27 23:00 26 Shuichi Sekiguchi v Hei Yin Andrew Li 6-3,6-0
ITF Hong Kong F5 12/26 23:00 25 Shuichi Sekiguchi v Yu Hsiou Hsu 2-6,6-4,6-3
ITF Hong Kong F4 12/23 23:00 28 Shuichi Sekiguchi v Yuki Bhambri 3-6,4-6
ITF Hong Kong F4 12/22 23:00 27 Shuichi Sekiguchi v Kento Takeuchi 5-7,6-3,6-2
ITF Hong Kong F4 12/21 23:00 26 Shuichi Sekiguchi v Jack Wong 6-1,6-0
ITF Hong Kong F4 12/18 23:00 25 Shuichi Sekiguchi v Alberto Lim 6-4,3-6,6-3
Challenger Toyota 11/16 01:00 25 Hyeon Chung v Shuichi Sekiguchi 6-1,6-3
Challenger - Kobe 11/07 05:10 25 Shuichi Sekiguchi v Go Soeda 1-6,0-6
Challenger Canberra 2 11/02 02:15 26 Shuichi Sekiguchi v Marc Polmans 1-6,2-6
Challenger Canberra 2 10/31 23:30 25 Jarmere Jenkins v Shuichi Sekiguchi 6-2,3-6,0-6
Challenger Ningbo 10/19 04:25 26 Shuichi Sekiguchi v Go Soeda 3-6,0-6
Challenger Ningbo 10/17 02:00 25 Shuichi Sekiguchi v Fajing Sun 6-3,7-5
Challenger Ningbo Qual 10/16 04:35 54 Shuichi Sekiguchi v Cheong-Eui Kim 6-4,4-6,6-1
Challenger Ningbo Qual 10/15 05:00 46 Shuichi Sekiguchi v Fabien Reboul 7-5,6-2
Challenger Ho Chi Minh City 10/13 11:20 26 Shuichi Sekiguchi v Jordan Thompson 3-6,3-6
Challenger Ho Chi Minh City 10/11 12:10 25 Shuichi Sekiguchi v Thien Nguyen Hoang 6-1,6-3