Florida teenager breaks American U20 100m record

Christian Miller, 17, is only second American high schooler to break the elusive 10-second barrier for 100m

Andre De Grasse becomes first Canadian sprinter to win Diamond League final

De Grasse clocked another season’s-best performance to win the Diamond League 200m title in 19.76 seconds

Noah Lyles wins his second-consecutive 200m title at Zurich Diamond League

Canada’s Aaron Brown and Andre De Grasse finish fifth and sixth in cool conditions