| Jun 21, 2026 | Bartczak | ½–½ | Kostic | 38th International Chess Tournament Open Pula 2026 | Caro-Kann Defense: Karpov Variation, Modern Main Line | |
| Jun 3, 2026 | Larkin | 1–0 | Kostic | 38th International Chess Tournament Open Pula 2026 | Caro-Kann Defense: Karpov Variation, Modern Main Line | |
| May 24, 2026 | Kopasz | 0–1 | Kostic | Round 5: Kopasz, Robert - Kostic, Milutin B | Caro-Kann Defense: Karpov Variation | |
| May 13, 2026 | Radisavljevic | 1–0 | Kostic | Round 5: Radisavljevic, Dalibor - Kostic, Milutin B | Caro-Kann Defense: Advance Variation, Tal Variation | |
| May 12, 2026 | Radovic | 1–0 | Kostic | Round 3: Radovic, Luka - Kostic, Milutin B | Réti Opening: Anglo-Slav Variation, with g3 | |
| May 10, 2026 | Kostic | ½–½ | Jocev | Round 3: Kostic, Milutin B - Jocev, Milan | Slav Defense: Exchange Variation, Symmetrical Line | |
| Mar 29, 2026 | Stanojevic | 0–1 | Kostic | Round 6: Stanojevic, Stanimir - Kostic, Milutin B | Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense | |
| Mar 28, 2026 | Maksimovic | * | Kostic | Round 4: Maksimovic, Branimir - Kostic, Milutin B | Réti Opening: Anglo-Slav Variation, with g3 | |
| Mar 27, 2026 | Kostic | ½–½ | Rihterovic | Round 3: Kostic, Milutin B - Rihterovic, Milan | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Mar 27, 2026 | Rajkovic | ½–½ | Kostic | Round 2: Rajkovic, Dusan - Kostic, Milutin B | Réti Opening: Anglo-Slav Variation, Capablanca Variation | |
| Mar 24, 2026 | Kostic | ½–½ | Todorovic | Round 7: Kostic, Milutin B - Todorovic, Goran N | Pseudo Queen's Indian Defense | |
| Nov 11, 2025 | Karisik | ½–½ | Kostic | Round 7: Karisik, Nenad - Kostic, Milutin B | Slav Defense: Steiner Variation | |
| Nov 10, 2025 | Kostic | ½–½ | Dimitrijeski | Round 6: Kostic, Milutin B - Dimitrijeski, Kristian | Slav Defense: Modern Line | |
| Nov 8, 2025 | Kostic | ½–½ | Djakovac | Round 4: Kostic, Milutin B - Djakovac, Enes | Queen's Indian Defense: Capablanca Variation | |
| Nov 7, 2025 | Lundin | ½–½ | Kostic | Round 3: Lundin, Jan - Kostic, Milutin B | Sicilian Defense: Closed | |
| Nov 6, 2025 | Kostic | ½–½ | Mitrovic | Round 2: Kostic, Milutin B - Mitrovic, Marjan | Indian Defense: Spielmann-Indian | |
| May 10, 2025 | Kostic | 0–1 | Dumbelovic | Round 8: Kostic, Milutin B - Dumbelovic, Novak | Catalan Opening: Closed | |
| May 9, 2025 | Jocev | 1–0 | Kostic | Round 7: Jocev, Milan - Kostic, Milutin B | Slav Defense: Schlechter Variation | |
| May 9, 2025 | Kostic | ½–½ | Drazic | Round 6: Kostic, Milutin B - Drazic, Sinisa | Dutch Defense: Leningrad Variation, Warsaw Variation | |
| May 7, 2025 | Kostic | 0–1 | Dumbelovic | Round 4: Kostic, Milutin B - Dumbelovic, Novak | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| May 7, 2025 | Valitov | 0–1 | Kostic | Round 3: Valitov, Ilshat - Kostic, Milutin B | Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation | |
| May 6, 2025 | Kostic | 0–1 | Zajic | Round 2: Kostic, Milutin B - Zajic, Milan | Indian Defense: Knights Variation | |
| May 5, 2025 | Ciric | ½–½ | Kostic | Round 1: Ciric, Pavle - Kostic, Milutin B | Modern Defense: Gurgenidze Defense | |
| Mar 31, 2024 | Kostic | * | Mihov | Battle for Caribrod 2024 | Bogo-Indian Defense: Retreat Variation | |
| Mar 31, 2024 | Mishev | 0–1 | Kostic | Battle for Caribrod 2024 | Caro-Kann Defense: Karpov Variation | |
| Mar 31, 2024 | Djukic | * | Kostic | Battle for Caribrod 2024 | Indian Defense: Normal Variation | |
| Mar 30, 2024 | Kostic | ½–½ | Belke | Battle for Caribrod 2024 | Torre Attack: Fianchetto Defense | |
| Mar 30, 2024 | Kostic | 1–0 | Manakova | Battle for Caribrod 2024 | Horwitz Defense | |
