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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 41y 154d | Houston WCT 1976 | |
| 2 | 40y 275d | North Conway 1975 | |
| 3 | 40y 246d | Gstaad 1975 | |
| 4 | 40y 169d | Houston WCT 1975 | |
| 5 | 39y 339d | Tokyo-2 1974 | |
| 6 | 39y 318d | Buenos Aires NTL 1968 | |
| 7 | 39y 313d | Sao Paulo NTL-1 1968 | |
| 8 | 39y 312d | Toronto 1968 | |
| 9 | 38y 340d | Tokyo 1973 | |
| 10 | 38y 333d | Osaka 1973 |
