| Jun 21, 2026 | Seitz | 0–1 | Petkidis | Schweizer Mannschaftsmeisterschaft 2026, Nationalliga A | Sicilian Defense: Pin Variation | |
| Jun 20, 2026 | Petkidis | 1–0 | Vernay | LNA swiss ronde 3 Gen?ve vs | French Defense: Advance Variation, Main Line | |
| May 31, 2026 | Petkidis | 0–1 | Cvitan | Schweizer Mannschaftsmeisterschaft 2026, Nationalliga A | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 21, 2026 | Petkidis | 1–0 | Mattenberger | SMM NLA 2026 | Sicilian Defense: Najdorf Variation | |
| Apr 5, 2026 | Petkidis | 0–1 | Pillard | Grenke Chess Festival 2026 Open | King's Indian Defense: Fianchetto Variation, Uhlmann-Szabo System | |
| Apr 3, 2026 | Petkidis | 0–1 | Kaufeld | Grenke Chess Festival 2026 Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 2, 2026 | Brandhorst | 0–1 | Petkidis | Grenke Chess Festival 2026 Open | King's Indian Attack, with e6 | |
| Mar 17, 2026 | Sermier | ½–½ | Petkidis | SUI-chT Echallens-Zuerich | Bogo-Indian Defense: Retreat Variation | |
| Oct 21, 2025 | Petkidis | ½–½ | Ledger | Round 3: Petkidis, Anthony - Ledger, Andrew J | Petrov's Defense: Karklins-Martinovsky Variation | |
| Oct 20, 2025 | Eljanov | ½–½ | Petkidis | Round 2: Eljanov, Pavel - Petkidis, Anthony | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Sep 28, 2025 | Petkidis | ½–½ | Stojanovic | SMM Rd 8+9 | French Defense: Advance Variation, Wade Variation | |
| Sep 27, 2025 | Cvitan | ½–½ | Petkidis | SMM Rd 8+9 | Nimzo-Indian Defense: Normal Variation | |
| Apr 27, 2025 | Petkidis | ½–½ | Hochstrasser | SMM Nationalliga A 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 21, 2025 | Petkidis | ½–½ | Boder | Grenke Chess Open A | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 21, 2025 | Yurovskykh | ½–½ | Petkidis | Round 8: Yurovskykh, Oleksandr - Petkidis, Anthony | Queen's Pawn Game: Symmetrical Variation | |
| Apr 20, 2025 | Petkidis | 1–0 | Kurt | Round 7: Petkidis, Anthony - Kurt, Sascha | Sicilian Defense: Najdorf Variation | |
| Apr 20, 2025 | Mohamed Anees M | 1–0 | Petkidis | Round 6: Mohamed Anees M - Petkidis, Anthony | Rapport-Jobava System | |
| Apr 19, 2025 | Petkidis | 1–0 | Vichnar | Round 5: Petkidis, Anthony - Vichnar, David | Sicilian Defense: Taimanov Variation | |
| Apr 19, 2025 | Heinrich | ½–½ | Petkidis | Round 4: Heinrich, John - Petkidis, Anthony | Réti Opening: Advance Variation | |
| Apr 18, 2025 | Georgescu | ½–½ | Petkidis | Round 2: Georgescu, Lena - Petkidis, Anthony | Sicilian Defense: Old Sicilian | |
| Apr 17, 2025 | Petkidis | 1–0 | Nichols | Round 1: Petkidis, Anthony - Nichols, Marc | Scandinavian Defense: Bronstein Variation | |
| Apr 6, 2025 | Aranovitch | ½–½ | Petkidis | SUI-chT Mendrisio-Zuerich | Caro-Kann Defense: Advance Variation | |
| Apr 5, 2025 | Petkidis | ½–½ | Arcuti | SUI-chT Zuerich-Tribschen | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Feb 7, 2025 | Zeng | 1–0 | Petkidis | Round 4: Zeng, Chongsheng - Petkidis, Anthony | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Feb 15, 2025 | Petkidis | ½–½ | Xie | Round 9: Petkidis, Anthony - Xie, Kaifan | Four Knights Game: Scotch Variation Accepted | |
| Feb 14, 2025 | Polster | 0–1 | Petkidis | Round 8: Polster, Christian - Petkidis, Anthony | Center Game: Berger Variation | |
| Feb 13, 2025 | Petkidis | 1–0 | Candian | Round 7: Petkidis, Anthony - Candian, Lorenzo | Scandinavian Defense: Classical Variation | |
| Feb 12, 2025 | Al Hosani | ½–½ | Petkidis | Round 6: Al Hosani, Omran - Petkidis, Anthony | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Feb 11, 2025 | Petkidis | 1–0 | Hatzl | Round 5: Petkidis, Anthony - Hatzl, Johannes | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Feb 9, 2025 | Petkidis | 1–0 | Prudhvi Kumar V | Round 3: Petkidis, Anthony - Prudhvi Kumar V | Caro-Kann Defense: Advance Variation, Short Variation | |
| Feb 9, 2025 | Fernandez Manrique | 0–1 | Petkidis | Round 2: Fernandez Manrique, Agustin - Petkidis, Anthony | Caro-Kann Defense: Apocalypse Attack | |
| Feb 8, 2025 | Petkidis | 1–0 | Vaduva | Round 1: Petkidis, Anthony - Vaduva, Ion-Valentin | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Oct 13, 2024 | Petkidis | ½–½ | Georgiadis | SMM Nationalliga A 2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Oct 12, 2024 | Baenziger | ½–½ | Petkidis | SMM Nationalliga A 2024 | Nimzo-Indian Defense: Normal Variation, Gligoric System | |
| Aug 25, 2024 | Wildi | 0–1 | Petkidis | SUI-chT Bodan-Zuerich | Rapport-Jobava System | |
| Aug 24, 2024 | Petkidis | 1–0 | Martins | SUI-chT Zuerich-Reti | French Defense: Advance Variation, Main Line | |
| Jul 24, 2024 | Razafindratsima | 1–0 | Petkidis | Biel Chess Festival MTO | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Jul 23, 2024 | Petkidis | 0–1 | Jumabayev | Biel Chess Festival MTO | Sicilian Defense: Taimanov Variation | |
| Jul 22, 2024 | Macovei | ½–½ | Petkidis | Biel Chess Festival MTO | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 20, 2024 | Petkidis | 1–0 | Kobo | Biel Chess Festival MTO | French Defense: Advance Variation | |
| Jul 19, 2024 | Gloeckler | 0–1 | Petkidis | Biel Chess Festival MTO | Ruy Lopez: Closed | |
| Jul 18, 2024 | Petkidis | 0–1 | Moiseenko | Biel Chess Festival MTO | Sicilian Defense: Lasker-Pelikan Variation | |
| Jul 17, 2024 | Bommini Mounika Akshaya | 0–1 | Petkidis | Biel Chess Festival MTO | Nimzo-Indian Defense: Normal Variation | |
| Jul 16, 2024 | Petkidis | 1–0 | Saine | Biel Chess Festival MTO | Sicilian Defense: Dragon Variation | |
| Jul 15, 2024 | Erne | ½–½ | Petkidis | Biel Chess Festival MTO | Catalan Opening: Closed | |
| Apr 28, 2024 | Petkidis | 0–1 | Borsuk | SUI-chT Zuerich-Wollishofen | French Defense: Advance Variation, Main Line | |
| Apr 14, 2024 | Jaeggy | 1–0 | Petkidis | SUI-chT Schwarz-Weiss Bern-Zuerich | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| Apr 1, 2024 | Petkidis | 1–0 | Bettalli | Grenke Chess Open 2024 | Sicilian Defense: Lasker-Pelikan Variation | |
| Apr 1, 2024 | Nasuta | ½–½ | Petkidis | Grenke Chess Open 2024 | Caro-Kann Defense: Advance Variation | |
| Mar 31, 2024 | Petkidis | 0–1 | Ivic | Grenke Chess Open 2024 | Sicilian Defense: Najdorf Variation | |
| Mar 31, 2024 | Wong | 0–1 | Petkidis | Grenke Chess Open 2024 | Caro-Kann Defense: Advance Variation | |
| Mar 30, 2024 | Petkidis | 1–0 | Gajcin | Grenke Chess Open 2024 | Sicilian Defense: Lasker-Pelikan Variation | |
| Mar 30, 2024 | Sorm | 0–1 | Petkidis | Grenke Chess Open 2024 | Queen's Pawn Game: London System | |
| Mar 29, 2024 | Petkidis | ½–½ | Lutz | Grenke Chess Open 2024 | French Defense: Advance Variation, Main Line | |
| Mar 17, 2024 | Petkidis | ½–½ | Mamedyarov | Dt. Schachbundesliga 2023/2024 | French Defense: Advance Variation, Main Line | |
| Mar 16, 2024 | Bluebaum | 1–0 | Petkidis | Dt. Schachbundesliga 2023/2024 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Mar 10, 2024 | Petkidis | 1–0 | Hasenohr | SUI-chT Zuerich-Winterthur | Scotch Game: Tartakower Variation | |
| Feb 24, 2024 | Petkidis | ½–½ | Bjerre | Schachbundesliga 23/24 | Italian Game: Scotch Invitation Declined | |
| Feb 23, 2024 | Bartel | ½–½ | Petkidis | Schachbundesliga 23/24 | Caro-Kann Defense: Endgame Variation | |
| Nov 21, 2024 | Moradiabadi | ½–½ | Petkidis | Round 9: Moradiabadi, Elshan - Petkidis, Anthony | Ruy Lopez: Closed, Anti-Marshall | |
| Nov 20, 2024 | Petkidis | ½–½ | Ris | Round 8: Petkidis, Anthony - Ris, Robert | Sicilian Defense: Kalashnikov Variation | |
| Nov 20, 2024 | Prohaszka | ½–½ | Petkidis | Round 7: Prohaszka, Peter - Petkidis, Anthony | King's Indian Attack | |
| Nov 19, 2024 | Korchynskyi | 0–1 | Petkidis | Round 6: Korchynskyi, Mykola - Petkidis, Anthony | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Nov 18, 2024 | Petkidis | 1–0 | Sumets | Round 5: Petkidis, Anthony - Sumets, Andrey | French Defense: Advance Variation, Euwe Variation | |
| Nov 18, 2024 | Besou | ½–½ | Petkidis | Round 4: Besou, Hussain - Petkidis, Anthony | Catalan Opening: Closed | |
| Nov 17, 2024 | Petkidis | ½–½ | Pubantz | Round 3: Petkidis, Anthony - Pubantz, Jan | Queen's Gambit Declined | |
| Nov 17, 2024 | Giorgadze | 1–0 | Petkidis | Round 2: Giorgadze, Giorgi - Petkidis, Anthony | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line | |
| Nov 16, 2024 | Petkidis | ½–½ | Polster | Round 1: Petkidis, Anthony - Polster, Christian | Sicilian Defense: Lasker-Pelikan Variation | |
| Dec 3, 2023 | Santos Ruiz | 1–0 | Petkidis | SBL | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Dec 2, 2023 | Petkidis | ½–½ | Bromberger | Schachbundesliga | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 22, 2023 | Petkidis | 0–1 | Brkic | Deutsche Bundesliga 2023/2024 | Sicilian Defense: Najdorf Variation | |
| Oct 21, 2023 | Fressinet | ½–½ | Petkidis | Deutsche Bundesliga 2023/2024 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Oct 15, 2023 | Petkidis | 1–0 | Loetscher | SMM 2023 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Oct 14, 2023 | Schaerer | ½–½ | Petkidis | SMM 2023 | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Oct 7, 2023 | Petkidis | 1–0 | Favier | European Chess Club Cup 2023 | Sicilian Defense: Najdorf Variation | |
| Oct 4, 2023 | Veljanoski | * | Petkidis | European Chess Club Cup 2023 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Oct 3, 2023 | Petkidis | ½–½ | Fedorchuk | European Chess Club Cup 2023 | Sicilian Defense: Kan Variation, Wing Attack | |
| Oct 9, 2022 | Glek | 1–0 | Petkidis | ECCC_22 | Sicilian Defense: Classical Variation, Fianchetto Variation | |
| Oct 8, 2022 | Nihal | 1–0 | Petkidis | ECCC_22 | Nimzo-Indian Defense: Normal Variation | |
| Oct 6, 2022 | Ragnarsson | 0–1 | Petkidis | ECCC_22 | Indian Defense: Anti-Nimzo-Indian | |
| Oct 3, 2022 | Makolli | * | Petkidis | 37th European Club Cup | ? | |
| Aug 22, 2021 | Petkidis | ½–½ | Sreyas Payyappat | Innsbruck Festival | Benoni Defense | |
| Aug 22, 2021 | Pfatteicher | * | Petkidis | Innsbruck Festival | ? | |
| Aug 22, 2021 | Pfatteicher | * | Petkidis | Innsbruck Festival | ? | |
| Aug 21, 2021 | Zaehringer | 0–1 | Petkidis | Innsbruck Festival | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jul 8, 2021 | Papidakis | 0–1 | Petkidis | Serbia Chess Open | Masters | ? | |
| Jul 6, 2021 | Petkidis | * | Ronka | Serbia Chess Open | Masters | ? | |
| Jul 6, 2021 | Annaberdiev | 1–0 | Petkidis | Serbia Chess Open | Masters | Queen's Pawn Game: London System | |
| Jul 5, 2021 | Jocev | * | Petkidis | Serbia Chess Open | Masters | ? | |
| Jul 4, 2021 | Petkidis | 0–1 | Puranik | Serbia Chess Open | Masters | French Defense: Tarrasch Variation | |
| Jul 3, 2021 | Petkidis | ½–½ | Trost | Serbia Chess Open | Masters | ? | |
| Jul 3, 2021 | Ravic | 0–1 | Petkidis | Serbia Chess Open | Masters | ? | |
| Jul 2, 2021 | Mitev | ½–½ | Petkidis | Serbia Chess Open | Masters | ? | |
| — | Kurmann | 0–1 | Petkidis | SMM Nationalliga A 2025 | Caro-Kann Defense: Two Knights Attack | |