Male
FIDE ID:
Jon Ludvig Hammer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| TCh-SWE Elitserien | 11/28/2025 | 2351 |  Sweden |
| TCh-NOR Elite 2025-26 | 10/31/2025 | 2295 |  Norway |
| FIDE Grand Swiss 2025 | 09/04/2025 | 2641 |  Uzbekistan |
| ch-NOR 2025 | 07/04/2025 | 2432 | Norway |
Jon Ludvig Hammer Opening Repertoire with White pieces
| ECO | Opening | Games |
| C11 | French defence | 14 games |
| B51 | Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack | 14 games |
| E15 | Queen's Indian, 4.g3 | 12 games |
| B52 | Sicilian, Canal-Sokolsky attack, 3...Bd7 | 11 games |
Jon Ludvig Hammer Opening Repertoire with Black pieces
| ECO | Opening | Games |
| D38 | Queen's Gambit Declined, Ragozin variation | 23 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 21 games |
| C65 | Ruy Lopez, Berlin defence | 17 games |
| C42 | Petrov's defence | 15 games |
