| Name: | J. Havinga |
| Federation: |  |
| Years: | 2001 - 2001 |
| Total Games: | 8 |
| Wins: | 3 (37.5 %) |
| Draws: | 1 (12.5 %) |
| Losses: | 4 (50 %) |
| Score: | 43.75 % |
| Tournament | Date | Elo Avg. | Country |
| NED-ch U14 | ??/??/2001 | 0 |  Netherlands |
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 2 games |
| C02 | French, advance variation | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
| B12 | Caro-Kann defence | 1 games |
| ECO | Opening | Games |
| B01 | Scandinavian (centre counter) defence | 2 games |
| E12 | Queen's Indian defence | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Havinga, J | Simenon, J | 0-1  |
22 | C02 | 2001 | NED-ch U14 |
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| Havinga, J | Van Duijvenbode, C | 0-1 |
29 | B22 | 2001 | NED-ch U14 |
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| Havinga, J | Vermeend, J | ½-½ |
51 | B12 | 2001 | NED-ch U14 |
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| Havinga, J | Pruijssers, R | 1-0 |
44 | A00 | 2001 | NED-ch U14 |
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| Havinga, J | Van Splunter, A | 1-0 |
32 | A00 | 2001 | NED-ch U14 |
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| Gorissen, H | Havinga, J | 1-0 |
28 | B01 | 2001 | NED-ch U14 |
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| Michielsen, J | Havinga, J | 0-1 |
27 | E12 | 2001 | NED-ch U14 |
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| Spoelman, W | Havinga, J | 1-0 |
22 | B01 | 2001 | NED-ch U14 |
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