| Mar 7, 2026 | Jakubiec | 0–1 | Stremavicius | Icelandic team chess championship premier league | King's Indian Attack, with e6 | |
| Mar 7, 2026 | Olafsson | ½–½ | Jakubiec | Icelandic team chess championship premier league | King's Indian Defense: Sämisch Variation, Panno Main Line | |
| Mar 6, 2026 | Jakubiec | ½–½ | Briem | Icelandic team chess championship premier league | King's Indian Attack: Sicilian Variation | |
| Mar 5, 2026 | Domalchuk-Jonasson | ½–½ | Jakubiec | Icelandic team chess championship premier league | Dutch Defense: Queen's Knight Variation | |
| Dec 4, 2025 | Jakubiec | ½–½ | Thorhallsson | Icelandic team chess championship premier league | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 16, 2025 | Petrov | 1–0 | Jakubiec | Icelandic team chess championship premier league | Queen's Pawn Game | |
| Nov 15, 2025 | Jakubiec | 0–1 | Thybo | Icelandic team chess championship premier league | Italian Game: Giuoco Pianissimo, Normal | |
| Nov 15, 2025 | Grieve | 0–1 | Jakubiec | Icelandic team chess championship premier league | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 14, 2025 | Ostrovskiy | ½–½ | Jakubiec | Icelandic team chess championship premier league | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Sep 13, 2025 | Jakubiec | ½–½ | Kucza | TCQ | Bird Opening: Dutch Variation | |
| Sep 13, 2025 | Jakubiec | 0–1 | Pakleza | TCQ | Bird Opening: Dutch Variation | |
| Sep 13, 2025 | Grzebieniowski | 0–1 | Jakubiec | TCQ | Dutch Defense: Leningrad Variation | |
| Sep 13, 2025 | Jakubiec | ½–½ | Nowak | TCQ | Bird Opening: Dutch Variation | |
| Sep 13, 2025 | Majdanski | 0–1 | Jakubiec | TCQ | Dutch Defense: Semi-Leningrad Variation | |
| Sep 13, 2025 | Jakubiec | 1–0 | Wojdak | TCQ | Bird Opening: Dutch Variation | |
| Sep 13, 2025 | Korszanski | 1–0 | Jakubiec | TCQ | Sicilian Defense: Kalashnikov Variation | |
| Sep 13, 2025 | Jakubiec | 1–0 | Serdiuk | TCQ | Bird Opening | |
| Sep 13, 2025 | Rusinski | 0–1 | Jakubiec | TCQ | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Aug 28, 2023 | Moueden | 0–1 | Jakubiec | WRTC | Sicilian Defense: Kalashnikov Variation | |
| Aug 28, 2023 | Sadhwani | 1–0 | Jakubiec | WRTC | King's Indian Defense: Orthodox Variation, Classical System | |
| Aug 27, 2023 | Jakubiec | 0–1 | Ter-Sahakyan | WRTC | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Aug 26, 2023 | Ahn | 0–1 | Jakubiec | WRTC | Sicilian Defense: Moscow Variation | |
| Mar 19, 2023 | Jakubiec | 0–1 | Stefansson | Icelandic Team Championship | Italian Game: Giuoco Pianissimo, Normal | |
| Mar 18, 2023 | Briem | 1–0 | Jakubiec | Icelandic Team Championship | Dutch Defense: Queen's Knight Variation | |
| Mar 18, 2023 | Hansen | 0–1 | Jakubiec | Icelandic Team Championship | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 17, 2023 | Jakubiec | 1–0 | Thorhallsson | Icelandic Team Championship | Sicilian Defense: Closed, Traditional | |
| Dec 10, 2022 | Jakubiec | 1–0 | Hombek | Chron PESEL pl OPEN C | Italian Game: Giuoco Piano | |
| Dec 10, 2022 | Jakubiec | ½–½ | Radzimski | Chron PESEL pl OPEN C | Bird Opening: Dutch Variation | |
| Dec 10, 2022 | Jakubiec | 1–0 | Pycinski | Chron PESEL pl OPEN C | Bird Opening: Dutch Variation | |
| Dec 10, 2022 | Uchman | 0–1 | Jakubiec | Chron PESEL pl OPEN C | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Dec 10, 2022 | Kowalski | * | Jakubiec | Chron PESEL pl OPEN C | Sicilian Defense: Kalashnikov Variation | |
| Dec 10, 2022 | Kotowicz | ½–½ | Jakubiec | Chron PESEL pl OPEN C | Dutch Defense: Hopton Attack | |
| Oct 16, 2022 | Jakubiec | ½–½ | Movsziszian | Icelandic Team Championship | Modern Defense: Standard Line | |
| Oct 15, 2022 | Briem | 0–1 | Jakubiec | Icelandic Team Championship | King's Indian Defense: Smyslov Variation | |
| Oct 15, 2022 | Viglundsson | 0–1 | Jakubiec | Icelandic Team Championship | King's Indian Defense: Smyslov Variation | |
| Oct 14, 2022 | Jakubiec | 1–0 | Domalchuk-Jonasson | Icelandic Team Championship | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Sep 11, 2021 | Jakubiec | 1–0 | Kwiatkowski | Polish League Division 1 | King's Indian Attack: Spassky Variation | |
| Sep 10, 2021 | Renkowski | 1–0 | Jakubiec | Polish League Division 1 | Sicilian Defense: Kupreichik Variation | |
| Sep 9, 2021 | Jakubiec | 1–0 | Rozycki | Polish League Division 1 | King's Indian Attack | |
| Sep 8, 2021 | Brzeski | ½–½ | Jakubiec | Polish League Division 1 | Sicilian Defense: Kalashnikov Variation | |
| Sep 7, 2021 | Jakubiec | ½–½ | Dubinski | Polish League Division 1 | Hungarian Opening | |
| Sep 6, 2021 | Galuszka | 0–1 | Jakubiec | Polish League Division 1 | Sicilian Defense: Old Sicilian | |
| Sep 5, 2021 | Jakubiec | 1–0 | Warchol | Polish League Division 1 | Italian Game: Giuoco Pianissimo, Normal | |
