ATP Tennis - Gianluca Mager
- Tournament: N/A
- Round: N/A
- Opponent: N/A
- DOB: 1994-12-01
- Birthplace: N/A
- Height: N/A
- Weight: N/A
- Plays: R
- Current World Rank: 97
- Hard: 3-5
- Clay: 7-10
- Grass: 0-0
| Tournament | Date | Sets | Round | Winner | Loser |
|---|---|---|---|---|---|
| Andalucia Open | Apr 8, 2021 | 6-3, 6-2 | Second Round | Casper Ruud | Gianluca Mager |
| Andalucia Open | Apr 6, 2021 | 7-5, 6-3 | First Round | Gianluca Mager | Mikhail Kukushkin |
| Chile Open | Mar 9, 2021 | 4-6, 7-6 (7-4), 7-6 (7-4) | First Round | Federico Coria | Gianluca Mager |
| Argentina Open | Mar 4, 2021 | 6-4, 7-6 (7-5) | Second Round | Pablo Andujar | Gianluca Mager |
| Argentina Open | Mar 2, 2021 | 7-6 (7-5), 6-4 | First Round | Gianluca Mager | Salvatore Caruso |
| Cordoba Open | Feb 23, 2021 | 6-7 (3-7), 6-1, 6-4 | First Round | Francisco Cerundolo | Gianluca Mager |
| Australian Open | Feb 7, 2021 | 6-3, 6-3, 6-4 | First Round | Aslan Karatsev | Gianluca Mager |
| Great Ocean Road Open | Feb 1, 2021 | 4-6, 6-4, 6-3 | First Round | Jordan Thompson | Gianluca Mager |
| Delray Beach Open | Jan 11, 2021 | 7-6 (7-2), 6-4 | Quarter Finals | Christian Harrison | Gianluca Mager |
| Delray Beach Open | Jan 9, 2021 | 7-6 (10-8), 6-1 | Second Round | Gianluca Mager | Sam Querrey |
