30 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Arnason, Jon L | Mestel, A Jonathan | 1/2-1/2 | B51 | Round 9: Arnason, Jon L - Mestel, A Jonathan | 2026-04-28 |
| Arnason, Jon L | Gazik, Igor | 1-0 | C41 | Round 7: Arnason, Jon L - Gazik, Igor | 2026-04-26 |
| Arnason, Jon L | Prakken, Gerrit | 1-0 | C78 | Round 4: Arnason, Jon L - Prakken, Gerrit | 2026-04-22 |
| Arnason, Jon L | Sibilio, Mario | 1/2-1/2 | B06 | Round 3: Arnason, Jon L - Sibilio, Mario | 2026-04-21 |
| Arnason, Jon L | Gislason, Gudmundur | 1-0 | B42 | Icelandic team chess championship premier league | 2026-03-07 |
| Arnason, Jon L | D'Amore, Carlo | 0-1 | C64 | WSTCC | 2025-02-25 |
| Arnason, Jon L | Kindt, Manfred | 1-0 | C83 | WSTCC | 2025-02-24 |
| Arnason, Jon L | Krizsany, Laszlo | 1-0 | B40 | WSTCC | 2025-02-21 |
| Arnason, Jon L | Frostick, Helen M | 1-0 | B18 | WSTCC | 2025-02-17 |
| Arnason, Jon L | Khachiyan, Melikset | 0-1 | B19 | 50-1 | 2024-07-09 |
| Arnason, Jon L | Csom, Etelka | 1-0 | B01 | 50-1 | 2024-07-02 |
| Jon L Arnason | Lexy Ortega | 1/2-1/2 | C64 | Round 8: Jon L Arnason - Lexy Ortega | 2023-09-27 |
| Jon L Arnason | Vlatko Bogdanovski | 1-0 | B15 | Round 7: Jon L Arnason - Vlatko Bogdanovski | 2023-09-26 |