The Croat, now 2-9 at the year-end championship prevailed 6-7 (2), 6-3, 6-4.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Nitto ATP World Tour Finals, Group Guga Kuerten
|
Championship | Novak Djokovic |
7-6
6-2 |
| 2018 |
Nitto ATP World Tour Finals, Group Guga Kuerten
|
Championship | Marin Cilic |
6-7
6-3 6-4 |
| 2018 |
Nitto ATP World Tour Finals, Group Guga Kuerten
|
Championship | Alexander Zverev |
7-6
7-6 |
| 2018 |
Rolex Paris Masters
|
Quarter Finals | Novak Djokovic |
6-4
2-6 3-6 |
| 2018 |
Rolex Paris Masters
|
1/8 | Marin Cilic |
7-6
6-4 |
| 2018 |
Rolex Paris Masters
|
1/16 | Marin Cilic |
6-3
6-4 |
| 2018 |
Swiss Indoors Basel
|
1/8 | Marius Copil |
7-5
7-6 |
| 2018 |
Swiss Indoors Basel
|
1/16 | Marin Cilic |
4-6
2-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
BGL BNP Paribas Luxembourg Open
|
1/8 | Andrea Petkovic |
6-2
6-3 |
| 2018 |
BGL BNP Paribas Luxembourg Open
|
1/16 | Katerina Siniakova |
1-6
7-6 0-6 |
| 2018 |
Upper Austria Ladies Linz
|
1/16 | Ekaterina Alexandrova |
5-7
0-6 |
