| May 29, 2026 | Stanczak | ½–½ | Businski | II DMP Juniorow 2026 | French Defense: Classical Variation, Burn Variation | |
| May 28, 2026 | Stachniak | ½–½ | Businski | II DMP Juniorow 2026 | French Defense: Classical Variation, Burn Variation | |
| May 27, 2026 | Businski | ½–½ | Pyrek | II DMP Juniorow 2026 | Queen's Indian Defense: Spassky System | |
| May 26, 2026 | Domanski | ½–½ | Businski | II DMP Juniorow 2026 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| May 25, 2026 | Businski | 1–0 | Wcislo | II DMP Juniorow 2026 | Queen's Gambit Accepted: Classical Defense, Main Line | |
| May 24, 2026 | Nowak | ½–½ | Businski | II DMP Juniorow 2026 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| May 23, 2026 | Businski | 1–0 | Wardecki | II DMP Juniorow 2026 | Queen's Gambit Declined | |
| May 22, 2026 | Zawisza | ½–½ | Businski | II DMP Juniorow 2026 | French Defense: Advance Variation, Euwe Variation | |
| May 21, 2026 | Businski | ½–½ | Kawecki | II DMP Juniorow 2026 | Queen's Pawn Game: Symmetrical Variation | |
| Jan 11, 2026 | Szczotka | 1–0 | Businski | Round 9: Szczotka, Klara - Businski, Jan | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jan 11, 2026 | Businski | ½–½ | Butkiewicz | Round 8: Businski, Jan - Butkiewicz, Jan | Queen's Pawn Game: Symmetrical Variation | |
| Jan 11, 2026 | Lukawski | 0–1 | Businski | Round 7: Lukawski, Tomasz - Businski, Jan | English Opening: King's English Variation, Reversed Sicilian | |
| Jan 11, 2026 | Businski | 0–1 | Sawicki | Round 6: Businski, Jan - Sawicki, Dorian | Catalan Opening | |
| Jan 11, 2026 | Pieszko | 0–1 | Businski | Round 5: Pieszko, Antoni - Businski, Jan | English Opening: King's English Variation, Closed System, Full Symmetry | |
| Jan 11, 2026 | Businski | 0–1 | Sitko | Round 4: Businski, Jan - Sitko, Tomasz | Catalan Opening | |
| Jan 11, 2026 | Jaroch | 1–0 | Businski | Round 3: Jaroch, Pawel - Businski, Jan | Catalan Opening | |
| Jan 11, 2026 | Businski | 1–0 | Plesiuk | Round 2: Businski, Jan - Plesiuk, Jan | Queen's Pawn Game: Zukertort Variation | |
| Jan 11, 2026 | Guzewicz | 0–1 | Businski | Round 1: Guzewicz, Maciej - Businski, Jan | French Defense: Advance Variation, Euwe Variation | |
| Dec 30, 2025 | Businski | 1–0 | Kaminski | Runda 9: Businski, Jan - Kaminski, Jan | Slav Defense: Exchange Variation, Symmetrical Line | |
| Dec 30, 2025 | Medvedyk | 1–0 | Businski | Runda 8: Medvedyk, Volodymyr - Businski, Jan | English Opening: King's English Variation, Reversed Sicilian | |
| Dec 30, 2025 | Businski | ½–½ | Szuminski | Runda 7: Businski, Jan - Szuminski, Jakub | Queen's Pawn Game: Symmetrical Variation | |
| Dec 29, 2025 | Mielczarski | ½–½ | Businski | Runda 6: Mielczarski, Miroslaw - Businski, Jan | English Opening: King's English Variation, Closed System, Full Symmetry | |
| Dec 29, 2025 | Businski | ½–½ | Padalka | Runda 5: Businski, Jan - Padalka, Artem | Queen's Pawn Game: Symmetrical Variation | |
| Dec 28, 2025 | Budzisz | ½–½ | Businski | Runda 4: Budzisz, Adrian - Businski, Jan | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Dec 27, 2025 | Businski | 1–0 | Sawicki | Runda 3: Businski, Jan - Sawicki, Dorian | Catalan Opening | |
| Dec 27, 2025 | Businski | ½–½ | Ptaszynski | Runda 2: Businski, Jan - Ptaszynski, Szymon | Catalan Opening | |
| Jun 26, 2025 | Businski | 0–1 | Owczarek | II DMP Juniorow | Queen's Pawn Game: Symmetrical Variation | |
| Jun 25, 2025 | Komendecki | ½–½ | Businski | II DMP Juniorow | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jun 24, 2025 | Businski | ½–½ | Polak | II DMP Juniorow | Queen's Indian Defense: Spassky System | |
| Jun 23, 2025 | Jach | ½–½ | Businski | II DMP Juniorow | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| Jun 22, 2025 | Businski | 1–0 | Brudnicki | II DMP Juniorow | Mexican Defense | |
| Jun 21, 2025 | Wasiluk | 0–1 | Businski | II DMP Juniorow | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jun 20, 2025 | Businski | 1–0 | Matuszewski | II DMP Juniorow | Queen's Indian Defense: Spassky System | |
| Jun 19, 2025 | Garwacki | ½–½ | Businski | II DMP Juniorow | Queen's Indian Defense: Fianchetto Variation, Kramnik Variation | |
| Aug 2, 2024 | Businski | 0–1 | Bilochenko | Rapid C12 | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line | |
| Jul 8, 2024 | Zawadzka | 1–0 | Businski | Macieja Memorial | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| — | Businski | 1–0 | Chiszko | Mistrzostwa Polski Juniorów w szachach szybkich C14 | Queen's Indian Defense: Spassky System | |
| — | Businski | ½–½ | Wons | Mistrzostwa Polski Juniorów w szachach szybkich C14 | King's Indian Defense: Fianchetto Variation, Debrecen Defense | |
| — | Szumlas | ½–½ | Businski | Mistrzostwa Polski Juniorów w szachach szybkich C14 | Queen's Indian Defense: Riumin Variation | |
| — | Smolinski | ½–½ | Businski | Mistrzostwa Polski Juniorów w szachach szybkich C14 | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| — | Korszanski | 1–0 | Businski | Mistrzostwa Polski Juniorów w szachach b?yskawicznych C14 | French Defense: Classical Variation, Burn Variation | |