 USA: M25 Austin, TX - Doubles - Main |
|---|
| Quarter-finals | Frantzen C./Lah S. | Goldhoff G./Markes C. | 1:2 (65:7, 6:3, 4:10) | details | 18.11.2021 |
| 1/8-finals | Claverie L./Fellin P. O. | Frantzen C./Lah S. | 0:2 (5:7, 65:7) | details | 17.11.2021 |
| USA: M15 Lubbock, TX - Doubles - Main |
|---|
| Final | Bangoura S./Brouwer G. | Frantzen C./Lah S. | 2:1 (6:4, 4:6, 10:5) | details | 02.10.2021 |
| Semi-finals | Arevalo I. A./Collier R. | Frantzen C./Lah S. | 0:2 (61:7, 1:6) | details | 30.09.2021 |
| Quarter-finals | Frantzen C./Lah S. | Baris O./Colby R. | WO. | details | 29.09.2021 |
| 1/8-finals | Frantzen C./Lah S. | Azoides D./Valiev I. | 2:0 (6:3, 6:3) | details | 28.09.2021 |
| USA: New Haven - Doubles - Main |
|---|
| Quarter-finals | Bendeck J./Lah S. | Galloway R./Lammons N. | 1:2 (6:4, 5:7, 3:10) | details | 05.09.2019 |
| 1/8-finals | Bendeck J./Lah S. | Pasha N./Schnur M. | 2:1 (6:1, 1:6, 18:16) | details | 03.09.2019 |
 Slovenia: Portoroz - Doubles - Main |
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| 1/8-finals | Lah S./Lipovsek Puches T. | Agabigun S./Celikbilek A. | 0:2 (2:6, 3:6) | details | 13.08.2019 |
 World: Davis Cup Group I - Doubles - Main |
|---|
| | Sousa J./Elias G. | Zemlja G./Lah S. | CAN. | details | 17.09.2016 |
| Slovenia: Portoroz - Doubles - Main |
|---|
| 1/8-finals | Kaplja A. J./Lah S. | Betov S./Ivashka I. | 0:2 (4:6, 64:7) | details | 08.08.2016 |
