| Jun 20, 2026 | Johannsson | 1–0 | Thorfinnsson | Green Diamond - Final Four | Queen's Pawn Game: London System | |
| Jun 20, 2026 | Thorfinnsson | 1–0 | Johannsson | Green Diamond - Final Four | Torre Attack: Classical Defense | |
| Jun 20, 2026 | Hjartarson | ½–½ | Johannsson | Green Diamond Invitational 2026 | King's Pawn Game | |
| Jun 20, 2026 | Johannsson | 0–1 | Stefansson | Green Diamond Invitational 2026 | Queen's Pawn Game: Krause Variation | |
| Jun 20, 2026 | Johannsson | ½–½ | Ulfarsson | Green Diamond Invitational 2026 | Indian Defense: London System | |
| Jun 20, 2026 | Heimisson | ½–½ | Johannsson | Green Diamond Invitational 2026 | King's Indian Attack | |
| Jun 20, 2026 | Johannsson | 1–0 | Olafsson | Green Diamond Invitational 2026 | Queen's Pawn Game: Modern Defense | |
| Jun 20, 2026 | Thorfinnsson | ½–½ | Johannsson | Green Diamond Invitational 2026 | French Defense: Chigorin Variation | |
| Jun 20, 2026 | Johannsson | 1–0 | Stefansson | Green Diamond Invitational 2026 | Queen's Pawn Game: London System | |
| Jun 20, 2026 | Gretarsson | 0–1 | Johannsson | Green Diamond Invitational 2026 | Bogo-Indian Defense: Grünfeld Variation | |
| Jun 20, 2026 | Johannsson | 0–1 | Thorfinnsson | Green Diamond Invitational 2026 | Queen's Pawn Game: Symmetrical Variation | |
| Jun 19, 2026 | Thorfinnsson | 1–0 | Johannsson | Green Diamond - Final Four | Torre Attack: Classical Defense | |
| Jun 19, 2026 | Stefansson | 1–0 | Johannsson | Green Diamond - Final Four | English Defense | |
| Jun 19, 2026 | Johannsson | 0–1 | Stefansson | Green Diamond - Final Four | Queen's Pawn Game: Krause Variation | |
| Jun 19, 2026 | Stefansson | ½–½ | Johannsson | Green Diamond - Final Four | Bogo-Indian Defense: Nimzowitsch Variation | |
| May 8, 2026 | Johannsson | 0–1 | Kjartansson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Rapport-Jobava System | |
| May 4, 2026 | Ptacnikova | ½–½ | Johannsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| May 4, 2026 | Birkisson | ½–½ | Johannsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Bogo-Indian Defense: Grünfeld Variation | |
| May 4, 2026 | Johannsson | 0–1 | Stefansson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Sicilian Defense: Closed, Chameleon Variation | |
| May 4, 2026 | Birkisson | ½–½ | Johannsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| May 3, 2026 | Johannsson | 0–1 | Thorfinnsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Scotch Game: Classical Variation, Intermezzo Variation | |
| May 2, 2026 | Ragnarsson | ½–½ | Johannsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Bogo-Indian Defense: Grünfeld Variation | |
| May 2, 2026 | Johannsson | 0–1 | Heimisson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Indian Defense: Knights Variation | |
| Apr 29, 2026 | Stefansson | 1–0 | Johannsson | Landsliðsflokkur Íslandsmótsins í skák 2026 | Queen's Gambit Declined: Three Knights Variation | |
| Mar 8, 2026 | Birkisson | ½–½ | Johannsson | Icelandic team chess championship premier league | Bogo-Indian Defense: Grünfeld Variation | |
| Mar 7, 2026 | Johannsson | 1–0 | Gunnarsson | Icelandic team chess championship premier league | Rapport-Jobava System | |
| Mar 6, 2026 | Bjornsson | ½–½ | Johannsson | Icelandic team chess championship premier league | French Defense: Classical Variation, Steinitz Variation | |
| Mar 5, 2026 | Arngrimsson | ½–½ | Johannsson | Icelandic team chess championship premier league | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jan 24, 2026 | Johannsson | * | Bjornsson | Le Kock Mótaröðin - Úrslitakvöld | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Jan 24, 2026 | Stefansson | 1–0 | Johannsson | Le Kock Mótaröðin - Úrslitakvöld | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jan 24, 2026 | Heimisson | * | Johannsson | Le Kock Mótaröðin - Úrslitakvöld | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jan 24, 2026 | Johannsson | * | Thorfinnsson | Le Kock Mótaröðin - Úrslitakvöld | Queen's Pawn Game | |
| Jan 24, 2026 | Thorfinnsson | 1–0 | Johannsson | Le Kock Mótaröðin - Úrslitakvöld | Torre Attack: Classical Defense | |
| Jan 24, 2026 | Johannsson | 0–1 | Ragnarsson | Le Kock Mótaröðin - Úrslitakvöld | Indian Defense: Spielmann-Indian | |
| Jan 24, 2026 | Skarphedinsson | * | Johannsson | Le Kock Mótaröðin - Úrslitakvöld | King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line | |
| Jan 24, 2026 | Johannsson | 1–0 | Jonsson | Le Kock Mótaröðin - Úrslitakvöld | Indian Defense: Spielmann-Indian | |
| Jan 24, 2026 | Gretarsson | * | Johannsson | Le Kock Mótaröðin - Úrslitakvöld | Indian Defense: Normal Variation | |
| Jan 24, 2026 | Johannsson | 1–0 | Bergsson | Le Kock Mótaröðin - Úrslitakvöld | Indian Defense: London System | |
| Jan 24, 2026 | Johannsson | 1–0 | Lagerman | Le Kock Mótaröðin - Úrslitakvöld | ? | |
| Dec 4, 2025 | Danielsen | 1–0 | Johannsson | Icelandic team chess championship premier league | Queen's Pawn Game: Colle System, Anti-Colle | |
| Nov 16, 2025 | Johannsson | 1–0 | Johannsson | Icelandic team chess championship premier league | English Opening: Symmetrical Variation, Hedgehog Defense | |
| Nov 15, 2025 | Omarsson | ½–½ | Johannsson | Icelandic team chess championship premier league | Nimzo-Indian Defense: Normal Variation | |
| Nov 15, 2025 | Johannsson | 1–0 | Kjartansson | Icelandic team chess championship premier league | Queen's Pawn Game: London System | |
| Nov 14, 2025 | Johannsson | ½–½ | Bjornsson | Icelandic team chess championship premier league | Indian Defense | |
