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OFSAA | 46.74 | Jun 3, 2016 | Khamal Stewart-Baynes | Father Henry Car | Can Inter | 46.27 | 1987 | Carl Folkes - Central Technica | | Centrals | 48.16 | May 29, 2013 | Joshua Cunningham | Brother Andre | GBSSA | 48.80 | 1976 | Mike Forgrave | Barrie North CI | LOSSA | 48.70 | 1996 | Tony Branch | Anderson | YRAA | 48.92 | May 17, 2012 | Joshua Cunningham | BACHS - Markham |
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