Professor [Wayne McLaughlin], a biochemist, responded saying that while the stimulant was of a higher concentration in the athlete s sample - 720 nanograms per millilitre - it would be difficult to say since the effects of the stimulant on an athlete vary depending on the individual. He did acknowledge, however, that the stimulant could have had a direct effect on the athlete s neurotransmitters, which could mean that the athlete may have been aware of the effects on his body.
In the Class II race for boys ages 14-15, St. Jago's Raheem Chambers clocked 10.29 seconds to smash [Yohan Blake]'s mark of 10.34 set in 2006. He was followed home by Jhevaughn Matherson of Kingston College, who was timed in 10.37. The K.C. sprinter would turn the table on Chambers in the 200 meters the following day. The frenzied crowd had barely settled down after the Class II100, when K.C.'s Zharnel Hughes, who is from Anguilla, stunned them again with 10.12 seconds in the Class I event for ages 16-19. He emerged victor from a stirring battle with Jevaughn Minzie of Bog Walk High, whose 10.16 also bettered Blake's 2007 mark of 10.21. Champs' final day offered even more record shattering performances in front a capacity National Stadium crowd of roughly 35,000, with hundreds more locked outside. Calabar's Javon Francis, a medalist on Jamaica's 4x400 meters team at the 2013 senior World Championships in Athletics, toppled the Class I 400 meters set by Jamaica's current super sprinter Usain Bolt in 2003. Francis clocked 45 seconds, erasing Bolt's mark of 45.35.
