| Challenger Oeiras Qual | 04/03 09:00 | 14 | [388] Fabian Marozsan v Marco Bortolotti [164] | 6-0,6-3 | |
| Challenger Forli | 01/02 16:20 | 14 | [397] Elmar Ejupovic v Marco Bortolotti [195] | 6-3,6-2 | |
| Challenger Lisbon | 09/26 09:00 | 14 | [239] Marco Bortolotti v Sebastian Fanselow [421] | 2-6,2-6 | |
| Challenger Banja Luka | 09/05 09:00 | 14 | [451] Aldin Setkic v Marco Bortolotti [249] | 7-5,6-4 | |
| Challenger Barletta | 08/22 10:00 | 14 | [370] Nicolas Alvarez v Marco Bortolotti [282] | 6-4,5-7,6-2 | |
| Challenger Verona | 08/17 10:20 | 25 | Pavel Kotov v Marco Bortolotti | 6-3,6-3 | |
| ITF M25 Bolzano | 08/05 08:00 | 27 | Federico Arnaboldi v Marco Bortolotti | 6-3,6-3 | |
| ITF M25 Bolzano | 08/04 11:10 | 26 | Marco Bortolotti v Arthur Reymond | 6-4,6-4 | |
| ITF M25 Bolzano | 08/03 16:20 | 25 | Marco Bortolotti v Luca Castagnola | 6-1,3-6,6-2 | |
| ITF M25 Wroclaw | 06/30 11:15 | 25 | Marco Bortolotti v Illya Beloborodko | 3-6,3-6 | |
| Challenger Biella | 05/30 10:55 | 14 | [281] Alexey Vatutin v Marco Bortolotti [266] | 3-6,6-4,6-1 | |
| ITF M15 Prijedor | 05/11 09:35 | 25 | [388] Denis Yevseyev v Marco Bortolotti [261] | 7-6,6-3 | |
| Challenger Zadar | 03/23 09:00 | 25 | [247] Marco Bortolotti v Vit Kopriva [295] | 1-6,3-6 | |
| Challenger Zadar | 03/22 09:00 | 19 | [366] Vladyslav Orlov v Marco Bortolotti [247] | 6-2,6-7,6-7 | |
| Challenger Zadar | 03/21 13:35 | 14 | [370] Victor Vlad Cornea v Marco Bortolotti [245] | 1-6,3-6 | |
| ITF M15 Rovinj | 03/16 10:30 | 25 | [332] Corentin Denolly v Marco Bortolotti [245] | 6-4,6-4 | |
| ITF M15 Porec | 03/10 09:00 | 25 | Marco Bortolotti v Matteo Arnaldi | 2-6,3-6 | |
| Challenger Gran Canaria Qual | 02/28 14:55 | 14 | [247] Marco Bortolotti v Pol Toledo Bague [493] | 1-6,5-7 | |
| UTR Pro Tennis Series Barcelona | 02/07 10:30 | - | [368] Pedro Cachin v Marco Bortolotti [240] | 6-1,5-4 | |
| UTR Pro Tennis Series Barcelona | 02/04 09:00 | - | Marco Bortolotti v Tristan Meraut | 4-1 | |
| UTR Pro Tennis Series Barcelona | 02/03 12:00 | - | Jordi Mas De Ugarte v Marco Bortolotti | 6-7,2-6 | |
| UTR Pro Tennis Series Barcelona | 02/02 13:00 | - | Kuzey Cekirge v Marco Bortolotti | 6-4,4-6,5-4 | |
| ITF M15 Antalya | 01/12 09:00 | 25 | Marco Bortolotti v Adrian Andreev | 4-6,1-6 | |
| ITF M15 Antalya | 01/08 06:30 | 26 | [235] Marco Bortolotti v Toby Kodat [367] | 1-6,4-6 | |
| ITF M15 Antalya | 01/06 09:30 | 25 | Marco Bortolotti v Gokberk Saritas | 6-3,6-2 | |
| ITF M15 Benicarlo | 11/28 12:55 | 28 | Nicolas Alvarez Varona v Marco Bortolotti | 3-6,6-3,7-5 | |
| ITF M15 Benicarlo | 11/27 08:50 | 27 | Marco Bortolotti v Pol M Tiffon | 6-3,6-4 | |
| ITF M15 Benicarlo | 11/26 12:05 | 26 | [440] Timofei Skatov v Marco Bortolotti [236] | 3-6,4-6 | |
| ITF M15 Benicarlo | 11/25 09:00 | 25 | Marco Bortolotti v Max Alcala Gurri | 7-6,1-6,6-3 | |
| ITF M15 Villena | 11/17 12:00 | 25 | [417] Nuno Borges v Marco Bortolotti [233] | 6-2,6-3 |