| Jan 3, 2025 | Petersson | ½–½ | Cramling Bellon | 52nd Rilton Cup: Rilton U2200 | Sicilian Defense: Old Sicilian | |
| Mar 17, 2023 | Petersson | 0–1 | Fridgeirsson | Icelandic Team Championship | Sicilian Defense | |
| Oct 16, 2022 | Gunnarsson | 1–0 | Petersson | Icelandic Team Championship | Sicilian Defense: Kan Variation, Knight Variation | |
| Oct 15, 2022 | Petersson | 1–0 | Ingvason | Icelandic Team Championship | French Defense: King's Indian Attack | |
| Oct 15, 2022 | Domalchuk-Jonasson | 1–0 | Petersson | Icelandic Team Championship | Benko Gambit Accepted: Modern Variation | |
| Oct 14, 2022 | Petersson | 1–0 | Finnsson | Icelandic Team Championship | Four Knights Game | |
| Nov 28, 2021 | Petersson | 1–0 | Troberg Eskola | Juniorallsvenskan 2021 division 1 + 2 | Owen Defense | |
| Nov 28, 2021 | Petersson | 1–0 | Anfalt | Juniorallsvenskan 2021 division 1 + 2 | Four Knights Game | |
| Nov 27, 2021 | Petersson | 1–0 | Sakic | Juniorallsvenskan 2021 division 1 + 2 | Caro-Kann Defense: Classical Variation, Main Line | |
| Nov 27, 2021 | Storme | 0–1 | Petersson | Juniorallsvenskan 2021 division 1 + 2 | Bird Opening: Dutch Variation | |
| Nov 26, 2021 | Petersson | 1–0 | Lilliehook | Juniorallsvenskan 2021 division 1 + 2 | Sicilian Defense: French Variation | |
| Jul 11, 2021 | Petersson | ½–½ | Torngren | Swedish Chess Championship 2021: Junior-SM | French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | |
| Jul 10, 2021 | Nguyen | ½–½ | Petersson | Swedish Chess Championship 2021: Junior-SM | King's Indian Defense: Sämisch Variation, Normal Defense | |
| Jul 9, 2021 | Soderstrom | ½–½ | Petersson | Swedish Chess Championship 2021: Junior-SM | Slav Defense: Exchange Variation, Boor Attack | |
| Jul 8, 2021 | Petersson | 0–1 | Falkevall | Swedish Chess Championship 2021: Junior-SM | French Defense: King's Indian Attack | |
| Jul 6, 2021 | Petersson | 1–0 | Rasti | Swedish Chess Championship 2021: Junior-SM | French Defense: Horwitz Attack | |
| Jul 6, 2021 | Olsson | ½–½ | Petersson | Swedish Chess Championship 2021: Junior-SM | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jul 5, 2021 | Pantzar | 1–0 | Petersson | Swedish Chess Championship 2021: Junior-SM | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Jul 4, 2021 | Petersson | ½–½ | Carlsson | Swedish Chess Championship 2021: Junior-SM | Petrov's Defense: Cozio Attack | |
| Jul 3, 2021 | Wernberg | 1–0 | Petersson | Swedish Chess Championship 2021: Junior-SM | English Opening: Symmetrical Variation | |
| — | Petersson | 1–0 | Olafsson | Icelandic Team Championship | Italian Game: Classical Variation, Greco Gambit, Anderssen Variation | |
| — | Petersson | ½–½ | Van den Berg | Icelandic Team Championship | Scandinavian Defense: Portuguese Gambit, Elbow Variation | |
| — | Kjartansson | 1–0 | Petersson | Icelandic Team Championship | Sicilian Defense: Closed | |
| — | Johannesson | 1–0 | Petersson | Icelandic Team Championship | King's Indian Defense: Orthodox Variation | |
| — | Ragnarsson | ½–½ | Petersson | Icelandic Team Championship | Slav Defense | |
