| Challenger Gwangju |
05/15 03:40 |
25 |
[241] Duckhee Lee v
Yunseong Chung
[253] |
4-6,2-6
|
|
| Challenger Busan |
05/09 04:40 |
26 |
[95] Ricardas Berankis
v
Duckhee Lee [247] |
6-3,3-6,6-3
|
|
| Challenger Busan |
05/08 04:50 |
25 |
[247] Duckhee Lee v
Yuichi Sugita
[181] |
5-7,6-3,7-6
|
|
| Challenger Busan |
05/07 06:20 |
24 |
[349] Makoto Ochi
v
Duckhee Lee [247] |
6-7,4-6
|
|
| Challenger Seoul |
04/30 03:35 |
24 |
[364] Ji Sung Nam
v
Duckhee Lee [246] |
7-5,6-1
|
|
| Challenger Nanchang |
04/24 04:15 |
25 |
[236] Duckhee Lee v
Goncalo Oliveira
[262] |
3-6,2-6
|
|
| Challenger Taipei |
04/08 03:20 |
24 |
[252] Kaichi Uchida
v
Duckhee Lee [237] |
6-4,6-4
|
|
| Challenger Shenzhen |
03/15 09:00 |
27 |
[106] Brayden Schnur
v
Duckhee Lee [244] |
6-4,4-6,7-5
|
|
| Challenger Shenzhen |
03/14 10:55 |
26 |
[247] Zhe Li
v
Duckhee Lee [244] |
3-6,3-6
|
|
| Challenger Shenzhen |
03/12 07:20 |
25 |
[244] Duckhee Lee v
Yuichi Sugita
[176] |
6-3,6-4
|
|
| Challenger Shenzhen |
03/11 03:50 |
24 |
[354] Zihao Xia
v
Duckhee Lee [244] |
3-6,1-6
|
|
| Challenger Zhuhai |
03/04 05:25 |
24 |
[424] Baptiste Crepatte
v
Duckhee Lee [244] |
6-3,7-6
|
|
| Challenger Yokohama |
03/01 02:00 |
27 |
[254] Duckhee Lee v
Soonwoo Kwon
[221] |
1-6,0-6
|
|
| Challenger Yokohama |
02/28 03:25 |
26 |
[138] Tatsuma Ito
v
Duckhee Lee [254] |
3-6,6-4,6-7
|
|
| Challenger Yokohama |
02/27 01:00 |
25 |
[254] Duckhee Lee v
Enzo Couacaud
[246] 
|
6-0,6-2
|
|
| Challenger Yokohama |
02/26 01:00 |
24 |
[254] Duckhee Lee v
Zihao Xia
[354] |
6-0,6-3
|
|
| Challenger Bangkok 1A |
02/19 07:35 |
25 |
[221] Alejandro D-Fokina
v
Duckhee Lee [259] |
6-4,6-2
|
|
| Challenger Bangkok 1A |
02/18 06:35 |
24 |
Duckhee Lee v
Thanapet Chanta
|
6-2,7-6
|
|
| Challenger Bangkok |
02/12 08:15 |
25 |
[239] Duckhee Lee v
Viktor Troicki
[221] |
1-6,2-6
|
|
| Challenger Bangkok |
02/11 03:00 |
24 |
[432] Wishaya Trongcharoenchaikul
v
Duckhee Lee [243] |
3-6,3-6
|
|
| Challenger Chennai |
02/07 05:00 |
26 |
[243] Duckhee Lee v
Nicola Kuhn
[237] |
4-6,4-6
|
|
| Challenger Chennai |
02/05 05:50 |
25 |
[243] Duckhee Lee v
Sumit Nagal
[351] 
|
6-3,6-4
|
|
| Australian Open |
01/08 02:55 |
44 |
[158] Gregoire Barrere
v
Duckhee Lee [236] |
6-3,6-2
|
|
| ATP Auckland |
01/05 03:00 |
64 |
Mackenzie McDonald
v
Duckhee Lee |
Cancelled
|
|
| Challenger Noumea |
01/01 01:25 |
25 |
[218] Duckhee Lee v
Hugo Nys
[79] |
6-4,4-6,2-6
|
|
| Australian Open WC |
12/01 05:50 |
28 |
[203] Duckhee Lee v
Zhe Li
[256] |
6-7,3-6
|
|
| Australian Open WC |
11/30 06:30 |
27 |
Duckhee Lee v
Renta Tokuda
|
6-4,6-4
|
|
| Australian Open WC |
11/29 04:40 |
26 |
Duckhee Lee v
Hanyi Liu
|
6-1,6-2
|
|
| Challenger Kobe |
11/12 05:00 |
25 |
Duckhee Lee v
Ji Sung Nam
|
Cancelled
|
|
| Challenger Shenzhen 2 |
10/29 04:20 |
25 |
[226] Federico Gaio
v
Duckhee Lee [197] |
Retired
|
|