Both Japanese players reached the final four at Flushing Meadows.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Roland Garros ATP
|
1/8 | Dominic Thiem |
6-2
6-0 5-7 6-4 |
| 2016 |
Internazionali BNL d'Italia
|
Quarter Finals | Kei Nishikori |
3-6
5-7 |
| 2015 |
Gerry Weber Open
|
1/16 | Kei Nishikori |
6-7
5-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
St. Petersburg Open
|
Quarter Finals | Dominic Thiem |
6-2
3-6 7-6 |
| 2018 |
St. Petersburg Open
|
1/8 | Dominic Thiem |
7-6
6-4 |
| 2018 |
Davis Cup Playoff
|
Championship | Dominic Thiem |
6-4
6-2 3-6 6-4 |
| 2018 |
Davis Cup Playoff
|
Championship | Dominic Thiem |
6-1
6-3 6-0 |
| 2018 |
US Open ATP
|
Quarter Finals | Rafael Nadal |
0-6
6-4 7-5 6-7 7-6 |
| 2018 |
US Open ATP
|
1/8 | Dominic Thiem |
7-5
6-2 7-6 |
| 2018 |
US Open ATP
|
1/16 | Dominic Thiem |
3-6
6-3 7-6 6-4 |
| 2018 |
US Open ATP
|
1/32 | Dominic Thiem |
6-7
6-3 5-7 6-4 6-1 |
| 2018 |
US Open ATP
|
1/64 | Dominic Thiem |
6-3
6-1 6-4 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Open de Moselle
|
Quarter Finals | Kei Nishikori |
6-3
4-6 6-4 |
| 2018 |
Open de Moselle
|
1/8 | Kei Nishikori |
7-6
6-3 |
| 2018 |
US Open ATP
|
Semi Finals | Novak Djokovic |
3-6
4-6 2-6 |
| 2018 |
US Open ATP
|
Quarter Finals | Kei Nishikori |
6-2
4-6 6-7 6-4 4-6 |
| 2018 |
US Open ATP
|
1/8 | Kei Nishikori |
6-3
6-2 7-5 |
| 2018 |
US Open ATP
|
1/16 | Kei Nishikori |
4-6
4-6 7-5 1-6 |
| 2018 |
US Open ATP
|
1/32 | Kei Nishikori |
2-6
4-5 |
| 2018 |
US Open ATP
|
1/64 | Kei Nishikori |
2-6
2-6 3-6 |
| 2018 |
Western & Southern Open
|
1/16 | Stan Wawrinka |
4-6
4-6 |
| 2018 |
Western & Southern Open
|
1/32 | Kei Nishikori |
7-5
6-3 |
