| Challenger Series TT | 02/03 08:50 | - | Кенан Хрнич v Nikola Grujic | L | 3-1 | |
| Challenger Series TT | 02/02 20:50 | - | Дамиан Зеч v Nikola Grujic | W | 1-3 | |
| Challenger Series TT | 02/02 18:50 | - | Деннис Кляйн v Nikola Grujic | L | 3-0 | |
| Challenger Series TT | 02/02 16:50 | - | Nikola Grujic v Anton Limonov | L | 1-3 | |
| Challenger Series TT | 02/02 14:10 | - | Nikola Grujic v Диллон Чамберс | L | 0-3 | |
| Challenger Series TT | 02/02 12:10 | - | Nikola Grujic v Kirill Fadeev | L | 1-3 | |
| Challenger Series TT | 02/02 09:30 | - | Hannes Hormann v Nikola Grujic | W | 2-3 | |
| Challenger Series TT | 01/31 11:30 | - | Makoto Nogami v Nikola Grujic | L | 3-2 | |
| Challenger Series TT | 01/31 07:30 | - | Флориан Блум v Nikola Grujic | L | 3-0 | |
| Challenger Series TT | 01/30 19:30 | - | Nikola Grujic v Гильерме Теодоро | L | 1-3 | |
| Challenger Series TT | 01/30 16:10 | - | Nikola Grujic v Сэмюэль Аманн | W | 3-0 | |
| Challenger Series TT | 01/30 14:10 | - | Йосип Хузьяк v Nikola Grujic | L | 3-1 |