Bucharest 
Rouen 
Oeiras 
San Miguel de Tucuman 
Acapulco 
Gwangju Challenger 
Tallahassee 
Davis Сup Group I Tennis. Played Ehrat Sandro. Season 2021
Country 
Switzerland. Ranking ATP 0.
Switzerland. Ranking ATP 0.| Biel | ||||
|---|---|---|---|---|
| 19.09.2021 | Qualifications - 1st round | Moriya Hiroki — Ehrat Sandro | 2:0 (6:3, 6:4) |
|
| ATP - Allianz Suisse Open | ||||
| 19.07.2021 | First round | Polmans Marc — Ehrat Sandro | 2:0 (7:5, 6:3) |
|
| 18.07.2021 | Qialification final | Zuk Kacper — Ehrat Sandro | 1:2 (6:2, 4:6, 2:6) |
|
| 17.07.2021 | Qualifications - 1st round | Ehrat Sandro — Gulbis Ernests | 2:0 (6:3, 6:4) |
|
 Braunschweig | ||||
| 07.07.2021 | Second round | Ehrat Sandro — Hassan Benjamin | 1:2 (6:4, 3:6, 4:6) |
|
| 06.07.2021 | First round | Ehrat Sandro — Moraing Mats | 2:1 (6:7, 6:4, 6:4) |
|
| 05.07.2021 | Qialification final | Ehrenschneider Nino — Ehrat Sandro | 1:2 (4:6, 7:6, 1:6) |
|
| 04.07.2021 | Qualifications - 1st round | Ehrat Sandro — Dougaz Aziz | 2:1 (1:6, 6:3, 6:1) |
|
| Lugano | ||||
| 22.03.2021 | Qialification final | Van Rijthoven Tim — Ehrat Sandro | 2:0 (7:6, 6:4) |
|
| 21.03.2021 | Qualifications - 1st round | Ehrat Sandro — Uchida Kaichi | 2:0 (6:3, 7:6) |
|
 Biella 3 | ||||
| 07.03.2021 | Qualifications - 1st round | Kivattsev Kirill — Ehrat Sandro | 2:0 (7:6, 6:3) |
|
 Gran Canaria 2 | ||||
| 02.03.2021 | First round | Ehrat Sandro — Horansky Filip | 1:2 (6:7, 7:5, 3:6) |
|
| 01.03.2021 | Qialification final | Ehrat Sandro — Esteve Lobato Eduard | 1:2 (3:6, 6:2, 6:7) |
|
| 28.02.2021 | Qualifications - 1st round | Ehrat Sandro — Echeverria John | 2:0 (6:0, 7:6) |
|