55,66 sec Outdoor | Bart van der Gragt Jongens U20 | 2003-05-17 Hoorn | |
---|---|---|---|
58,82 sec Outdoor | Bouke van der Schaaf Jongens U20 | 1999-06-11 | |
58,96 sec Outdoor | Bouke van der Schaaf Jongens U20 | 1999-06-05 | |
60,23 sec Outdoor | Bouke van der Schaaf Jongens U20 | 1999-05-13 | |
61,5 sec* Outdoor | Bouke van der Schaaf Jongens U20 | 1999-04-05 Alkmaar |