Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/02/27 07:30 | Sven Happek v Sushmit Sriram | L | 0-3 |
| Challenger Ochsenhausen | 2020/02/07 12:25 | Sushmit Sriram v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2020/02/06 12:10 | Sven Happek v Sushmit Sriram | L | 0-3 |
| Challenger Ochsenhausen | 2019/04/12 09:50 | Sven Happek v Sushmit Sriram | L | 0-3 |
| Challenger Ochsenhausen | 2018/11/23 07:30 | Sven Happek v Sushmit Sriram | L | 2-3 |
| Challenger Ochsenhausen | 2018/01/10 10:50 | Sven Happek v Sushmit Sriram | L | 1-3 |
| Challenger Ochsenhausen | 2017/12/07 11:30 | Sven Happek v Sushmit Sriram | W | 3-1 |
| Challenger Series TT | 2023/10/05 14:30 | Sven Happek v Akito Itagaki | L | 2-3 |
| Challenger Series TT | 2023/10/05 12:30 | Sven Happek v Hannes Hormann | W | 3-1 |
| Challenger Series TT | 2023/10/05 09:10 | Daniel Rinderer v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/10/05 07:10 | Sven Happek v Alexander Valuch | L | 0-3 |
| Challenger Series TT | 2023/09/19 09:50 | Sven Happek v Alvaro Gainza | L | 1-3 |
| Challenger Series TT | 2023/09/19 06:30 | Sven Happek v Jong-Eon Yeon | L | 2-3 |
| Challenger Series TT | 2023/09/18 17:50 | Sven Happek v Sudhanshu Grover | L | 1-3 |
| Challenger Series TT | 2023/09/18 16:30 | Sven Happek v Louis Reuseau | W | 3-2 |
| Challenger Series TT | 2023/10/05 16:30 | Daniel Rinderer v Sushmit Sriram | W | 2-3 |
| Challenger Series TT | 2023/10/05 13:50 | Sushmit Sriram v Alexander Valuch | W | 3-1 |
| Challenger Series TT | 2023/10/05 10:30 | Sushmit Sriram v Guillaume Alcayde | W | 3-1 |
| Challenger Series TT | 2023/10/05 08:30 | Sushmit Sriram v Miguel Nunez | W | 3-0 |
| Challenger Series TT | 2023/10/03 12:50 | Dauud Cheaib v Sushmit Sriram | W | 0-3 |
| Challenger Series TT | 2023/10/03 12:05 | Sushmit Sriram v Guillaume Alcayde | L | 0-3 |
| Challenger Series TT | 2023/10/03 09:10 | Sushmit Sriram v Louis Price | W | 3-0 |
| Challenger Series TT | 2023/10/02 19:50 | Sushmit Sriram v Akos Kishegyi | W | 3-1 |