| Oct 2, 2025 | Alquist | 0–1 | Ftacnik | European individual senior chess championship 2025 - Open 65+, Rabac, Croatia | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Oct 1, 2025 | Thorsteinsson | 1–0 | Alquist | European individual senior chess championship 2025 - Open 65+, Rabac, Croatia | Benoni Defense: King's Pawn Line, with Bg5 | |
| Sep 30, 2025 | Alquist | 1–0 | Huss | European individual senior chess championship 2025 - Open 65+, Rabac, Croatia | French Defense: Winawer Variation, Petrosian Variation | |
| Sep 29, 2025 | Nunn | ½–½ | Alquist | European individual senior chess championship 2025 - Open 65+, Rabac, Croatia | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 14, 2025 | Soumya | * | Alquist | Round 5: Soumya, Swaminathan - Alquist, Erik | ? | |
| Jan 13, 2025 | Alquist | * | Herrera Ramirez | Round 4: Alquist, Erik - Herrera Ramirez, Daniel | ? | |
| Jan 12, 2025 | Voet | * | Alquist | Round 3: Voet, Dirk - Alquist, Erik | ? | |
| Jan 11, 2025 | Alquist | 0–1 | Ilinca | Round 2: Alquist, Erik - Ilinca, Felix-Antonio | Sicilian Defense: Sozin Attack, Main Line | |
| Jan 10, 2025 | Aguilera Concha | * | Alquist | Round 1: Aguilera Concha, Jose David - Alquist, Erik | ? | |
| Nov 2, 2024 | Alquist | 0–1 | Fernandez Garcia | Round 9: Alquist, Erik - Fernandez Garcia, Jose Luis | Alekhine Defense: Four Pawns Attack, Main Line | |
| Nov 1, 2024 | Pritchett | ½–½ | Alquist | Round 8: Pritchett, Craig W - Alquist, Erik | King's Indian Attack: Symmetrical Defense | |
| Oct 30, 2024 | Petran | 1–0 | Alquist | Round 6: Petran, Peter - Alquist, Erik | Hungarian Opening: Sicilian Invitation | |
| Oct 28, 2024 | Pomes Marcet | 1–0 | Alquist | Round 4: Pomes Marcet, Joan - Alquist, Erik | King's Indian Defense | |
| Oct 27, 2024 | Alquist | ½–½ | Goormachtigh | Round 3: Alquist, Erik - Goormachtigh, Johan | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Oct 26, 2024 | Alquist | 1–0 | Gaprindashvili | Round 1: Alquist, Erik - Gaprindashvili, Nona | Caro-Kann Defense: Maróczy Variation, Maróczy Gambit | |
| Jul 4, 2024 | Alquist | 0–1 | Gromark | Schack-SM 2024: Veteran-SM 65+ | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 3, 2024 | Adler | ½–½ | Alquist | Schack-SM 2024: Veteran-SM 65+ | King's Indian Defense: Four Pawns Attack, Normal Attack | |
| Oct 26, 2023 | Alquist | * | Smith | 65+ World Senior Championship | ? | |
| Oct 25, 2023 | Van Riemsdijk | * | Alquist | 65+ World Senior Championship | ? | |
| Jun 2, 2023 | Alquist | 1–0 | Patola | escc2023_65 | Scandinavian Defense: Modern Variation | |
| Jun 1, 2023 | Idesis | ½–½ | Alquist | escc2023_65 | Indian Defense | |
| May 31, 2023 | Alquist | ½–½ | Patrucco | escc2023_65 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| May 28, 2023 | Kortis | 1–0 | Alquist | escc2023_65 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 27, 2023 | Alquist | ½–½ | Polster | escc2023_65 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Feb 10, 2023 | Alquist | ½–½ | Jepson | Elite Hotels Open 2023 | Pirc Defense | |
| Feb 10, 2023 | Alquist | 0–1 | Lindberg | Elite Hotels Open 2023 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 9, 2022 | Lagerborg | 1–0 | Alquist | Schack-SM 2022: Veteran-SM +65 | Nimzo-Indian Defense: Classical Variation | |
| Jul 8, 2022 | Marttala | ½–½ | Alquist | Schack-SM 2022: Veteran-SM +65 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Jul 7, 2022 | Alquist | 0–1 | Gillefalk | Schack-SM 2022: Veteran-SM +65 | Sicilian Defense: Kalashnikov Variation | |
| Jul 6, 2022 | Alquist | 1–0 | Malmdin | Schack-SM 2022: Veteran-SM +65 | Bogo-Indian Defense: Vitolins Variation | |
| Jul 3, 2022 | Bergstrom | 1–0 | Alquist | Schack-SM 2022: Veteran-SM +65 | Sicilian Defense: Alapin Variation | |
| Feb 6, 2022 | Alquist | * | Steuer | chessemy open 2022 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Feb 4, 2022 | Alquist | 0–1 | Sommer | chessemy open 2022 | Semi-Slav Defense: Main Line | |
| Feb 3, 2022 | Wronn | 1–0 | Alquist | chessemy open 2022 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Feb 2, 2022 | Alquist | 1–0 | Schomann | chessemy open 2022 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Feb 1, 2022 | Kugler | 1–0 | Alquist | chessemy open 2022 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jan 31, 2022 | Alquist | 1–0 | Schoell | chessemy open 2022 | Slav Defense | |
| Jan 30, 2022 | Schulze | 1–0 | Alquist | chessemy open 2022 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
