| Challenger Banja Luka | 09/06 11:55 | 25 | [288] Pedja Krstin v Nicolas Moreno De Alboran [349] | 6-2,3-6,6-2 | |
| Challenger Barletta | 08/25 09:00 | 26 | Pedja Krstin v Aziz Dougaz | 2-6,2-6 | |
| Challenger Barletta | 08/23 13:30 | 25 | [460] Jeremy Jahn v Pedja Krstin [288] | Retired | |
| Challenger Trieste | 07/29 14:50 | 26 | [122] Damir Dzumhur v Pedja Krstin [273] | 6-3,6-1 | |
| Challenger Trieste | 07/28 08:00 | 25 | [273] Pedja Krstin v Viktor Durasovic [345] | 6-3,6-2 | |
| Challenger Tampere | 07/21 15:00 | 26 | [128] Botic Van De Zandschulp v Pedja Krstin [270] | 6-3,6-1 | |
| Challenger Tampere | 07/19 15:30 | 25 | [293] JC Aragone v Pedja Krstin [270] | 4-6,4-6 | |
| Challenger Iasi | 07/13 07:00 | 25 | [267] Pedja Krstin v Dimitar Kuzmanov [238] | 2-6,2-6 | |
| ITF M25 Belgrade | 07/01 09:55 | 26 | Pedja Krstin v Alexandar Lazarov | Retired | |
| ITF M25 Belgrade | 06/30 11:30 | 25 | Pedja Krstin v Bogdan Pavel | 6-1,6-1 | |
| Challenger Milan | 06/25 13:50 | 27 | [274] Pedja Krstin v Hugo Grenier [265] | 4-6,4-6 | |
| Challenger Milan | 06/23 11:00 | 26 | [272] Pedja Krstin v Manuel Guinard [301] | 6-4,0-6,6-4 | |
| Challenger Milan | 06/21 14:55 | 25 | [249] Facundo Mena v Pedja Krstin [272] | Retired | |
| Challenger Almaty | 06/14 10:45 | 25 | [272] Pedja Krstin v Teymuraz Gabashvili [256] | Retired | |
| Challenger Almaty | 06/09 05:40 | 26 | [327] Evan Furness v Pedja Krstin [276] | 6-3,6-1 | |
| Challenger Almaty | 06/07 11:30 | 25 | [276] Pedja Krstin v Mohamed Safwat [162] | 6-4,6-0 | |
| ATP Belgrade | 05/25 13:55 | 26 | [255] Alex Molcan v Pedja Krstin [285] | 6-0,6-0 | |
| ATP Belgrade | 05/23 10:30 | 25 | [284] Pedja Krstin v Soonwoo Kwon [89] | 6-2,3-6,6-1 | |
| ITF M15 Prijedor | 05/14 07:00 | 26 | Pedja Krstin v Alen Rogic-Hadzalic | Walkover | |
| ITF M15 Prijedor | 05/11 15:05 | 25 | Pedja Krstin v Mateja Janicijevic | 6-1,6-0 | |
| Challenger Rome Qual | 04/25 09:15 | 14 | Matteo Gigante v Pedja Krstin | 4-6,7-5,6-4 | |
| Challenger Belgrade | 04/12 16:00 | 25 | [127] Damir Dzumhur v Pedja Krstin [285] | 4-6,6-2,6-3 | |
| Challenger St. Petersburg | 03/10 08:30 | 25 | [328] Zizou Bergs v Pedja Krstin [278] | 6-2,6-1 | |
| Challenger St. Petersburg | 03/03 07:00 | 25 | [285] Matthew Ebden v Pedja Krstin [276] | 6-1,6-4 | |
| Challenger Potchefstroom | 02/16 10:55 | 25 | [308] Lucas Miedler v Pedja Krstin [271] | 6-2,6-0 | |
| Challenger Potchefstroom | 02/10 09:50 | 26 | [271] Pedja Krstin v Mirza Basic [329] | Retired | |
| Challenger Potchefstroom | 02/08 12:55 | 25 | [223] Roberto Cid Subervi v Pedja Krstin [271] | 3-6,5-7 | |
| ATP Antalya | 01/06 10:50 | 168 | Pedja Krstin v Mert Naci Turker | 2-6,1-6 | |
| Challenger Lima | 11/24 16:30 | 25 | [335] Oriol Roca Batalla v Pedja Krstin [265] | 7-5,7-5 | |
| Challenger Guayaquil | 11/16 19:00 | 25 | [302] Vit Kopriva v Pedja Krstin [264] | 6-1,6-4 |