| Nov 8, 2025 | Hristova | 1–0 | Sigeman | Round 9: Hristova, Ivelina - Sigeman, Johan | Bishop's Opening: Berlin Defense | |
| Nov 8, 2025 | Jankowiak | 1–0 | Sigeman | Round 6: Jankowiak, Tomasz - Sigeman, Johan | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Nov 8, 2025 | Jarlskov | ½–½ | Sigeman | Round 5: Jarlskov, Daniel Tuk Hartso - Sigeman, Johan | Catalan Opening: Open Defense | |
| Nov 7, 2025 | Sigeman | 1–0 | Kuftyrev | Round 4: Sigeman, Johan - Kuftyrev, Pavlo | English Opening: Anglo-Dutch Defense | |
| Oct 25, 2025 | Ledger | ½–½ | Sigeman | Round 7: Ledger, Stephen C - Sigeman, Johan | Nimzo-Larsen Attack: Modern Variation | |
| Oct 22, 2025 | Collin | 1–0 | Sigeman | Round 4: Collin, Moritz Valentin - Sigeman, Johan | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Oct 20, 2025 | Manafov | 1–0 | Sigeman | Round 2: Manafov, Vugar - Sigeman, Johan | Queen's Pawn Game: Accelerated London System | |
| Sep 8, 2024 | Sigeman | 1–0 | Andren | The Kvibergspelen 2024 | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Sep 8, 2024 | Kashwan | ½–½ | Sigeman | The Kvibergspelen 2024 | Catalan Opening: Open Defense | |
| Sep 7, 2024 | Sigeman | ½–½ | Havner | The Kvibergspelen 2024 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Sep 7, 2024 | Westlund | 0–1 | Sigeman | The Kvibergspelen 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Sep 6, 2024 | Dingertz | 1–0 | Sigeman | The Kvibergspelen 2024 | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Jul 7, 2024 | Wengholm | ½–½ | Sigeman | Schack-SM 2024: Veteran-SM 65+ | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jul 4, 2024 | Sigeman | 0–1 | Wedin | Schack-SM 2024: Veteran-SM 65+ | Queen's Pawn Game: Zukertort Variation | |
| Jul 3, 2024 | Gillefalk | ½–½ | Sigeman | Schack-SM 2024: Veteran-SM 65+ | Zukertort Opening: Reversed Grünfeld | |
| Jul 2, 2024 | Sigeman | ½–½ | Bohlin | Schack-SM 2024: Veteran-SM 65+ | Catalan Opening: Open Defense, Classical Line | |
| Jul 1, 2024 | Andersson | ½–½ | Sigeman | Schack-SM 2024: Veteran-SM 65+ | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Feb 11, 2024 | Sigeman | ½–½ | Fransson | Elite Hotels Open 2024 | Zukertort Opening: Kingside Fianchetto | |
| Feb 11, 2024 | Mejvik | 0–1 | Sigeman | Elite Hotels Open 2024 | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Feb 9, 2024 | Sigeman | 0–1 | Hector | Elite Hotels Open 2024 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Nov 23, 2024 | Sigeman | ½–½ | Clausen | Round 5: Sigeman, Johan - Clausen, Martin | English Opening: Symmetrical Variation, Mecking Variation | |
| Nov 23, 2024 | Kirk | ½–½ | Sigeman | Round 6: Kirk, Eden - Sigeman, Johan | Torre Attack: Classical Defense | |
| Nov 22, 2024 | Sigeman | 1–0 | Tulliez | Round 3: Sigeman, Johan - Tulliez, Andre | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Nov 22, 2024 | Braverman | 0–1 | Sigeman | Round 4: Braverman, Stanislav - Sigeman, Johan | Nimzo-Indian Defense: Classical Variation | |
| Feb 11, 2023 | Sigeman | 0–1 | Hillarp | Elite Hotels Open 2023 | Benoni Defense: Fianchetto Variation | |
| Apr 10, 2022 | Khoury | 1–0 | Sigeman | ROpen 2022 | Scotch Game: Malaniuk Variation | |
| Apr 7, 2022 | Martin | 1–0 | Sigeman | Reykjavik Open 2022 | Ruy Lopez: Open, Howell Attack | |
| — | Sigeman | 1–0 | Jonsson | Reykjavik Open 2022 | Catalan Opening: Closed | |
| — | Sigeman | ½–½ | Arnelind | Avenyn Open 2025 | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| — | Larkin | 1–0 | Sigeman | ROpen 2022 | Catalan Opening: Open Defense, Classical Line | |
| — | Rajcevski | 0–1 | Sigeman | Avenyn Open 2025 | Queen's Pawn Game: Accelerated London System | |
