Stadium: Court 4 Round: 25 Ground: Clay
| ITF Croatia F1 | 2018/03/04 15:00 | Prechtel, Sebastian v Nincevic, Frane | 6-4,7-5 |
| ITF M25 Meerbusch | 2021/04/14 12:25 | Prechtel, Sebastian v Simon, Tobias | 5-7,6-3,3-6 |
| ITF M25 Meerbusch | 2021/04/13 12:35 | Alexis Boureau v Prechtel, Sebastian | 6-7,6-7 |
| ITF M25 Meerbusch | 2021/04/12 10:30 | Voljacques, Hugo v Prechtel, Sebastian | 6-7,7-6,4-10 |
| ITF M25 Meerbusch | 2021/04/11 14:30 | Nico Hornitschek v Prechtel, Sebastian | 2-6,2-6 |
| ITF - M15 Opatija | 2021/03/25 09:00 | Prechtel, Sebastian v Oleksandr Ovcharenko | 4-6,2-6 |
| ITF - M15 Opatija | 2021/03/23 12:30 | Alexandar Lazarov v Prechtel, Sebastian | 6-7,4-6 |
| ITF - M15 Rovinj | 2021/03/15 11:30 | Prechtel, Sebastian v Milan Welte | 6-1,4-6,1-10 |
| ITF - M15 Rovinj | 2021/03/14 08:30 | Prechtel, Sebastian v Paul Valsecchi | 6-0,7-5 |
| Challenger Split Qual | 2021/04/11 12:25 | Nincevic, Frane v Tristan Lamasine | 1-6,5-7 |
| Challenger - Zadar | 2021/03/24 09:00 | Nincevic, Frane v Sumit Nagal | 0-6,1-6 |
| Challenger - Zadar | 2021/03/22 13:15 | Nincevic, Frane v Mili Poljicak | 4-6,6-4,6-3 |
| ITF - M15 Rovinj | 2021/03/17 09:00 | Timo Legout v Nincevic, Frane | 6-0,7-6 |
| ITF - M15 Rovinj | 2021/03/16 12:55 | Nincevic, Frane v Gian Marco Ortenzi | 6-1,6-4 |
| ITF - M15 Rovinj | 2021/03/15 13:30 | Louis Tessa v Nincevic, Frane | 4-6,6-4,8-10 |
| ITF - M15 Rovinj | 2021/03/15 09:30 | Heger, Tim v Nincevic, Frane | 6-7,4-6 |
| ITF - M15 Porec | 2021/03/07 13:00 | Sarouk, Yair v Nincevic, Frane | 6-4,6-2 |