Loading…
| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 7y 273d | Berkeley 1968 | |
| 2 | 15y 306d | Fort Lauderdale 1971 | |
| 3 | 16y 108d | Cincinnati 1969 | |
| 4 | 16y 146d | Johannesburg 1971 | |
| 5 | 16y 154d | Johannesburg 1969 | |
| 6 | 16y 195d | Johannesburg 1971 | |
| 7 | 16y 253d | Boca Raton 1986 | |
| 8 | 16y 276d | Manchester 1971 | |
| 9 | 16y 276d | Rome 1968 | |
| 10 | 16y 299d | Key Biscayne 1987 | |
| 11 | 16y 307d | Rome 1968 | |
| 12 | 16y 314d | Johannesburg-1 1972 | |
| 13 | 16y 319d | Johannesburg-1 1972 | |
| 14 | 16y 333d | Boston-2 1969 | |
| 15 | 16y 360d | Rome 1973 | |
| 16 | 17y 31d | Johannesburg 1969 | |
| 17 | 17y 38d | Johannesburg 1971 | |
| 18 | 17y 74d | Delray Beach 1985 | |
| 19 | 17y 138d | Johannesburg-1 1972 | |
| 20 | 17y 145d | Johannesburg 1970 |
