| May 13, 2026 | Pavicevic | * | Piekielny | MEN 8th ICCD World Individual Blitz Chess Championship | Caro-Kann Defense: Advance Variation | |
| May 13, 2026 | Piekielny | * | Kasumovic | MEN 8th ICCD World Individual Blitz Chess Championship | Modern Defense: Geller's System | |
| May 13, 2026 | Salibasic | 0–1 | Piekielny | MEN 8th ICCD World Individual Blitz Chess Championship | Caro-Kann Defense: Exchange Variation | |
| May 13, 2026 | Vujcic | 0–1 | Piekielny | MEN 8th ICCD World Individual Blitz Chess Championship | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| May 13, 2026 | Piekielny | ½–½ | Lapaj | MEN 8th ICCD World Individual Blitz Chess Championship | French Defense: Advance Variation, Euwe Variation | |
| May 13, 2026 | Sanchez Devesa | 0–1 | Piekielny | MEN 8th ICCD World Individual Blitz Chess Championship | Caro-Kann Defense: Maróczy Variation | |
| May 13, 2026 | Piekielny | 1–0 | Mate | MEN 8th ICCD World Individual Blitz Chess Championship | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| May 13, 2026 | Nurymov | 0–1 | Piekielny | MEN 8th ICCD World Individual Blitz Chess Championship | Nimzo-Indian Defense: Sämisch Variation | |
| May 12, 2026 | Filimonov | 0–1 | Piekielny | Individual men | French Defense: Tarrasch Variation, Morozevich Variation | |
| May 12, 2026 | Piekielny | 1–0 | Tapai | Individual men | French Defense: Classical Variation, Shirov-Anand Variation | |
| May 12, 2026 | Piekielny | 1–0 | Bogic | Individual men | French Defense: Classical Variation, Shirov-Anand Variation | |
| May 12, 2026 | Piekielny | 1–0 | Kesetovic | Individual men | Modern Defense: Geller's System | |
| May 12, 2026 | Wagner | 0–1 | Piekielny | Individual men | Caro-Kann Defense: Classical Variation | |
| May 12, 2026 | Piekielny | ½–½ | Kozhakhmetov | rapid men | Italian Game: Giuoco Pianissimo, Normal | |
| May 12, 2026 | Orsag | ½–½ | Piekielny | rapid men | Bogo-Indian Defense: Grünfeld Variation | |
| May 10, 2026 | Piekielny | ½–½ | Vujakovic | Classical Men | Pirc Defense: Sveshnikov System | |
| May 9, 2026 | Mate | 0–1 | Piekielny | Classical Men | Caro-Kann Defense: Classical Variation | |
| May 7, 2026 | Piekielny | ½–½ | Orsag | Classical Men | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| May 5, 2026 | Piekielny | * | Gruenfeld | MEN 8th ICCD World Individual Blitz Chess Championship | French Defense: Advance Variation, Wade Variation | |
| May 5, 2026 | Kesetovic | 0–1 | Piekielny | rapid men | Caro-Kann Defense | |
| May 5, 2026 | Piekielny | 1–0 | Mate | rapid men | Sicilian Defense: Open | |
| May 5, 2026 | Vujakovic | 0–1 | Piekielny | rapid men | French Defense: Classical Variation, Shirov-Anand Variation | |
| May 5, 2026 | Piekielny | 1–0 | Biliy | rapid men | Pirc Defense: Sveshnikov System | |
| May 4, 2026 | Ozdemir | 0–1 | Piekielny | Classical Men | Queen's Gambit Declined | |
| May 4, 2026 | Pavicevic | ½–½ | Piekielny | Classical Men | Caro-Kann Defense: Advance Variation | |
| May 4, 2026 | Piekielny | 0–1 | Kozhakhmetov | Classical Men | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 4, 2026 | Biliy | ½–½ | Piekielny | Classical Men | Indian Defense: Pseudo-Benko | |
| Feb 20, 2026 | Piekielny | ½–½ | Czernek | Round 9: Piekielny, Pawel - Czernek, Tymon | Sicilian Defense: Chekhover Variation | |
| Feb 17, 2026 | Klimkowski | 1–0 | Piekielny | Round 6: Klimkowski, Jan - Piekielny, Pawel | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Feb 17, 2026 | Piekielny | ½–½ | Ben Ari | Round 5: Piekielny, Pawel - Ben Ari, Yannay | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Feb 15, 2026 | Waldhausen Gordon | 1–0 | Piekielny | Round 3: Waldhausen Gordon, Frederick - Piekielny, Pawel | French Defense: Advance Variation, Euwe Variation | |
| Oct 25, 2025 | Pribeanu | 0–1 | Piekielny | Round 6: Pribeanu, Mihail-Dacian - Piekielny, Pawel | King's Indian Attack | |
| Oct 24, 2025 | Piekielny | ½–½ | Lipilin | Round 5: Piekielny, Pawel - Lipilin, Ilia | Sicilian Defense: Kalashnikov Variation | |
| Oct 23, 2025 | Gurbanov | 0–1 | Piekielny | Round 4: Gurbanov, Andrei - Piekielny, Pawel | Queen's Indian Accelerated | |
| Oct 22, 2025 | Piekielny | ½–½ | Fuentes De Feria | Round 3: Piekielny, Pawel - Fuentes De Feria, Hector Luis | Petrov's Defense: Modern Attack, Murrey Variation | |
| Oct 21, 2025 | Mate | 0–1 | Piekielny | Round 2: Mate, Balazs - Piekielny, Pawel | French Defense: Exchange Variation | |
| Oct 20, 2025 | Maksimenko | ½–½ | Piekielny | Round 1: Maksimenko, Viktor - Piekielny, Pawel | Indian Defense: London System | |
| Sep 20, 2025 | Liskiewicz | 0–1 | Piekielny | Szansa25 | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Sep 20, 2025 | Piekielny | 0–1 | Dalkowski | Szansa25 | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Sep 20, 2025 | Gaszka | * | Piekielny | Szansa25 | ? | |
| Sep 20, 2025 | Piekielny | 0–1 | Jakubowski | Szansa25 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Sep 20, 2025 | Babinska | * | Piekielny | Szansa25 | ? | |
| Sep 20, 2025 | Piekielny | * | Buklaho | Szansa25 | ? | |
| Sep 20, 2025 | Rutkowski | * | Piekielny | Szansa25 | ? | |
| Sep 20, 2025 | Piekielny | * | Zajaczkowski | Szansa25 | ? | |
| Sep 20, 2025 | Lipinski | * | Piekielny | Szansa25 | ? | |
| Sep 20, 2025 | Piekielny | * | Gruca | Szansa25 | ? | |
| Jun 2, 2025 | Trybus | 1–0 | Piekielny | Open-1 | King's Indian Attack: Spassky Variation | |
| Jun 2, 2025 | Lecki | 1–0 | Piekielny | Open-1 | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| May 31, 2025 | Grochol | 0–1 | Piekielny | Open-1 | Queen's Pawn Game: Accelerated London System | |
| May 31, 2025 | Piekielny | 0–1 | Janeczko | Open-1 | Alekhine Defense: Exchange Variation | |
| May 31, 2025 | Warchol | ½–½ | Piekielny | Open-1 | French Defense: Tarrasch Variation, Morozevich Variation | |
| May 31, 2025 | Piekielny | 1–0 | Kubicka | Open-1 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| May 31, 2025 | Moczulski | 0–1 | Piekielny | Open-1 | Caro-Kann Defense: Advance Variation | |
| May 31, 2025 | Piekielny | 1–0 | Golawski | Open | Scotch Game: Lolli Variation | |
| May 31, 2025 | Piekielny | 1–0 | Figa | Open-1 | Caro-Kann Defense: Advance Variation, Short Variation | |
| May 31, 2025 | Piekielny | 1–0 | Hertlein | Open-1 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| May 31, 2025 | Stankowski | 0–1 | Piekielny | Open-1 | Indian Defense: Knights Variation | |
| Jan 2, 2025 | Piekielny | 0–1 | Negrean | Cracovia 2024 | Nimzo-Indian Defense: Sämisch Variation, O'Kelly Variation | |
| Dec 31, 2024 | Katsanis | 1–0 | Piekielny | Cracovia 2024 | Nimzo-Indian Defense: Kmoch Variation | |
| Dec 30, 2024 | Piekielny | ½–½ | Soffer | Cracovia 2024 | Scotch Game: Mieses Variation | |
| Dec 30, 2024 | Grygierczyk | ½–½ | Piekielny | Cracovia 2024 | Zukertort Opening | |
| Dec 29, 2024 | Piekielny | 0–1 | Pyrih | Cracovia 2024 | Sicilian Defense: Delayed Alapin Variation | |
| Dec 28, 2024 | Zareba | 0–1 | Piekielny | Cracovia 2024 | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Dec 27, 2024 | Piekielny | 1–0 | Ugorek | Cracovia 2024 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Sep 8, 2024 | Tustanowski | ½–½ | Piekielny | DMP II LIga 2024 1 | French Defense: King's Indian Attack | |
| Sep 7, 2024 | Piekielny | ½–½ | Jarmula | DMP II LIga 2024 1 | Pirc Defense | |
| Sep 6, 2024 | Nowicki | ½–½ | Piekielny | DMP II LIga 2024 1 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Sep 5, 2024 | Piekielny | ½–½ | Romanishin | DMP II LIga 2024 1 | Scotch Game: Potter Variation | |
| Sep 4, 2024 | Luczak | 1–0 | Piekielny | DMP II LIga 2024 1 | King's Indian Attack: Spassky Variation | |
| Sep 3, 2024 | Piekielny | 1–0 | Kindler | DMP II LIga 2024 1 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Sep 2, 2024 | Piekielny | 1–0 | Gorkiewicz | DMP II LIga 2024 1 | Scotch Game: Mieses Variation | |
| Sep 1, 2024 | Ugorek | 0–1 | Piekielny | DMP II LIga 2024 1 | Bogo-Indian Defense: Grünfeld Variation | |
| Aug 31, 2024 | Piekielny | 1–0 | Lasok | DMP II LIga 2024 1 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 17, 2024 | Piekielny | ½–½ | Golis | Masters | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Aug 16, 2024 | Backiel | 0–1 | Piekielny | Masters | English Opening: Four Knights System, Nimzowitsch Variation | |
| Aug 15, 2024 | Piekielny | 0–1 | Czernek | Masters | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Aug 14, 2024 | Zielonka | ½–½ | Piekielny | Masters | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Aug 13, 2024 | Piekielny | 1–0 | Panek | Masters | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 12, 2024 | Wojdak | 0–1 | Piekielny | Masters | Benoni Defense: Fianchetto Variation | |
| Aug 11, 2024 | Piekielny | 1–0 | Rekuc | Masters | Nimzo-Indian Defense: Three Knights Variation | |
| Aug 10, 2024 | Meers | 1–0 | Piekielny | Masters | Trompowsky Attack | |
| Aug 9, 2024 | Piekielny | ½–½ | Musial | Masters | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jan 4, 2024 | Piekielny | 0–1 | Sieciechowicz | Cracovia 2023 Open A | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jan 3, 2024 | Pyrig | 0–1 | Piekielny | Cracovia 2023 Open A | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jan 2, 2024 | Piekielny | 1–0 | Lehocz | Cracovia 2023 Open A | English Defense | |
| Jan 2, 2024 | Piekielny | 0–1 | Golubka | Cracovia 2023 Open A | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Dec 31, 2023 | Buchenau | ½–½ | Piekielny | Cracovia 2023 Open A | Caro-Kann Defense: Endgame Offer | |
| Dec 30, 2023 | Piekielny | 1–0 | Zalega | Cracovia 2023 Open A | Benoni Defense: King's Pawn Line | |
| Dec 29, 2023 | Cukrowski | 1–0 | Piekielny | Cracovia 2023 Open A | Catalan Opening: Open Defense, Classical Line | |
| Dec 28, 2023 | Piekielny | 1–0 | Kazantzoglou | Cracovia 2023 Open A | Ruy Lopez: Morphy Defense | |
| Dec 27, 2023 | Puranik | 1–0 | Piekielny | Cracowia 2023 Open A | French Defense: Advance Variation, Euwe Variation | |
| Feb 4, 2023 | Gurbanov | 0–1 | Piekielny | World Olympiad PwD | Catalan Opening: Open Defense, Classical Line | |
| Feb 3, 2023 | Piekielny | ½–½ | Kishan | World Olympiad PwD | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Feb 2, 2023 | Infiesto | 0–1 | Piekielny | World Olympiad PwD | French Defense: Advance Variation, Euwe Variation | |
| Feb 1, 2023 | Piekielny | 1–0 | Morales Santos | World Olympiad PwD | Sicilian Defense: Dragon Variation | |
| Jan 31, 2023 | Campos | 1–0 | Piekielny | World Olympiad PwD | Nimzo-Indian Defense: Rubinstein System | |
| Jul 9, 2022 | Krasenkow | 0–1 | Piekielny | PGNiG TERMIKA Puchar Polski | French Defense: Chigorin Variation | |
| Jul 2, 2022 | Kozak | 1–0 | Piekielny | Krakov A | English Opening: Agincourt Defense, Wimpy System | |
| Jul 1, 2022 | Piekielny | 0–1 | Danielyan | Krakov A | Caro-Kann Defense: Tartakower Variation | |