| Challenger Bogota | 07/05 19:45 | 25 | [160] Facundo Mena v Pedja Krstin [408] | 7-6,6-2 | |
| Challenger Cali | 06/29 15:00 | 26 | [408] Pedja Krstin v Miljan Zekic [276] | 6-4,6-7,5-7 | |
| Challenger Cali | 06/28 15:20 | 25 | [408] Pedja Krstin v Nick Chappell [467] | 6-2,6-4 | |
| Challenger Milan | 06/20 15:30 | 25 | [70] Federico Coria v Pedja Krstin [369] | 6-1,6-1 | |
| Challenger Bratislava | 06/05 12:40 | 14 | [448] Jonathan Mridha v Pedja Krstin [328] | Retired | |
| Challenger Tunis | 05/16 14:00 | 25 | [329] Pedja Krstin v Daniel Michalski [282] | 4-6,0-6 | |
| Challenger Morelos | 04/26 16:00 | 25 | [326] Malek Jaziri v Pedja Krstin [320] | 5-7,6-1,7-6 | |
| Challenger Aguascalientes | 04/18 19:15 | 19 | [316] Pedja Krstin v Adrian Menendez-Maceiras [453] | Retired | |
| Challenger Aguascalientes | 04/17 19:55 | 14 | [317] Pedja Krstin v Mateus Alves [400] | 6-4,7-5 | |
| Challenger San Luis Potosi | 04/11 23:35 | 25 | [317] Pedja Krstin v Federico Gaio [186] | 2-6,6-2,5-7 | |
| Challenger Mexico City | 04/06 16:00 | 26 | [321] Pedja Krstin v Felipe Meligeni Rodrigues Alves [219] | 1-6,4-6 | |
| Challenger Mexico City | 04/05 16:00 | 25 | [434] Keegan Smith v Pedja Krstin [321] | 6-4,3-6,4-6 | |
| Challenger Pereira | 04/01 17:25 | 27 | [332] Pedja Krstin v Tomas Martin Etcheverry [108] | 2-6,6-7 | |
| Challenger Pereira | 03/31 15:15 | 26 | [383] Roberto Quiroz v Pedja Krstin [332] | 6-7,4-6 | |
| Challenger Pereira | 03/29 15:00 | 25 | [332] Pedja Krstin v Goncalo Oliveira [265] | 3-6,6-4,6-3 | |
| ITF M25 Medellin | 03/24 15:25 | 26 | Kyle Seelig v Pedja Krstin | 6-3,6-2 | |
| ITF M25 Medellin | 03/23 16:50 | 25 | Mateo Gomez v Pedja Krstin | 2-6,4-6 | |
| ITF M25 Anapoima | 03/16 20:45 | 25 | Rubin Statham v Pedja Krstin | 7-6,7-6 | |
| Challenger Monterrey | 03/07 21:45 | 25 | [224] Juan Pablo Ficovich v Pedja Krstin [327] | 6-2,7-5 | |
| Challenger Rio De Janeiro | 12/13 18:00 | 25 | [312] Pedja Krstin v Luciano Darderi [343] | 2-6,6-7 | |
| Challenger Florianopolis | 12/07 13:00 | 25 | [311] Pedja Krstin v Hernan Casanova [327] | 7-5,1-6,2-6 | |
| Challenger Sao Paulo | 11/30 14:30 | 25 | [313] Pedja Krstin v Felipe Meligeni Rodrigues Alves [209] | Retired | |
| Challenger Puerto Vallarta | 11/21 17:35 | 14 | [317] Pedja Krstin v Luis Patino [325] | Retired | |
| Challenger Champaign | 11/18 17:00 | 26 | Pedja Krstin v Ben Shelton | 6-4,0-6,1-6 | |
| Challenger Champaign | 11/16 22:10 | 25 | [317] Pedja Krstin v Arjun Kadhe [222] | 7-5,7-5 | |
| Challenger Guayaquil | 11/02 17:10 | 25 | [129] Hugo Dellien v Pedja Krstin [307] | 6-4,6-2 | |
| Challenger Lima | 10/26 23:00 | 25 | [129] Juan P Varillas v Pedja Krstin [307] | 6-3,6-1 | |
| Challenger Bogota | 10/19 16:30 | 25 | [306] Goncalo Oliveira v Pedja Krstin [309] | 3-6,6-3,6-2 | |
| Challenger Barcelona | 10/05 09:45 | 25 | [311] Pedja Krstin v Nicola Kuhn [257] | 4-6,4-6 | |
| Challenger Banja Luka | 09/08 14:00 | 26 | [160] Nikola Milojevic v Pedja Krstin [288] | Retired |