| Tournament Name | NZ Major Open |
| Place | Wellington |
| Federation | NZL |
| Date Begin | 02/01/2023 |
| Date End | 10/01/2023 |
| Arbiter(s) | Craig HALL (4301030) |
| Play System | swiss FIDE Dutch (JaVaFo) |
| Rounds | 9 |
| Score game | 0-0.5-1 |
| Tie break | DE2 Buc1 BucT Mwns |
| Registered Players | 71 |
| Number of Federations | 5 |
| Average Rating (all) | 1400 |
| Average Rating (only FIDE rated) | 1474 |
| Players from NZL Federation | 66 |
| Players NOT from NZL Federation | 5 |
| FIDE rated players | 54 |
| unrated players | 17 |
| unrated players from NZL Federation | 15 |
| unrated players NOT from NZL Federation | 2 |
| unrated Federations | 3 |
| FIDE titled players | 1 |
| GM players | 0 |
| WGM players | 0 |
| IM players | 0 |
| WIM players | 0 |
| FM players | 0 |
| WFM players | 0 |
| CM players | 0 |
| WCM players | 1 |
| FIDE titled player from NZL Federation | 1 |
| FIDE titled player NOT from NZL Federation | 0 |