Can the Serb break the record for most career weeks at No. 1 in ATP rankings history?
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Australian Open ATP
|
Semi Finals | Novak Djokovic |
6-7
4-6 3-6 |
| 2020 |
Australian Open ATP
|
Quarter Finals | Roger Federer |
3-6
6-2 6-2 6-7 3-6 |
| 2020 |
Australian Open ATP
|
1/8 | Roger Federer |
6-4
1-6 2-6 2-6 |
| 2020 |
Australian Open ATP
|
1/16 | Roger Federer |
6-4
6-7 4-6 6-4 6-7 |
| 2020 |
Australian Open ATP
|
1/32 | Roger Federer |
1-6
4-6 1-6 |
| 2020 |
Australian Open ATP
|
1/64 | Roger Federer |
3-6
2-6 2-6 |
| 2019 |
Nitto ATP World Tour Finals Final Stage
|
Championship | Stefanos Tsitsipas |
6-3
6-4 |
| 2019 |
Nitto ATP World Tour Finals, Group Bjorn Borg
|
Championship | Roger Federer |
4-6
3-6 |
| 2019 |
Nitto ATP World Tour Finals, Group Bjorn Borg
|
Championship | Roger Federer |
7-6
6-3 |
| 2019 |
Nitto ATP World Tour Finals, Group Bjorn Borg
|
Championship | Dominic Thiem |
5-7
5-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Istanbul
|
1/16 | Sebastian Ofner |
6-7
6-4 6-4 |
