| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Halldorsson, B | Pichardo, J | 0-1 ![]() |
42 | B19 | 1972 | WchT U26 19th fin-B |
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| Sinclair, I | Halldorsson, B | 1-0 ![]() |
55 | A25 | 1972 | WchT U26 19th fin-B |
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| Strand, O | Halldorsson, B | ½-½ ![]() |
1972 | WchT U26 19th fin-B |
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| Halldorsson, B | Saariluoma, P | 1-0 ![]() |
1972 | WchT U26 19th fin-B |
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| Falk, L | Halldorsson, B | ½-½ ![]() |
59 | C81 | 1972 | WchT U26 19th fin-B |
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| Krzisnik, R | Halldorsson, B | ½-½ ![]() |
42 | C80 | 1972 | WchT U26 19th fin-B |
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| Halldorsson, B | 2200 | Stean, M | 2275 | 0-1 ![]() |
36 | D86 | 1972 | WchT U26 19th prel-B |
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| Garcia, L | 2200 | Halldorsson, B | 1-0 ![]() |
40 | D76 | 1972 | WchT U26 19th prel-B |
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| Funck, K | Halldorsson, B | 0-1 ![]() |
38 | A02 | 1971 | Reykjavik |
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