Shelly-Ann Fraser-Pryce stayed on track for an Olympic sprint double on Monday as fellow Jamaican Veronica Campbell-Brown took her first step towards a third consecutive 200m gold. Fraser-Pryce, who successfully defended her 100m title in London, looked impressive in easing to victory in heat six of the first round of the women\'s 200m in a time of 22.71sec. Campbell-Brown timed 22.75sec in heat five as American Sanya Richards-Ross, chasing a 200m-400m double after winning the one-lap sprint 24 hours earlier, topped the qualifying times with 22.48sec. Three-time 200m world champion Allyson Felix of America, who finished second behind Campbell-Brown over 200m in Athens 2004 and Beijing 2008, ran 22.71sec. Felix came into the event in superb form, having run a personal best and world leading time of 21.69 at the US Olympic trials, the fastest for 14 years. Campbell-Brown ended Felix\'s winning streak at last year\'s world championships in Daegu, South Korea, last year. Asked about the possibility of achieving a trio of titles, Campbell-Brown told BBC TV: \"It is a great stiuation to be in, I am not going to let pressure overwhelm me or anything, I am just taking it step by step. \"The objective is to get to the final and just run as best I can there.\" Carmelita Jeter, pipped to the 100m gold by Fraser-Pryce, also qualified for Tuesday\'s semi-finals. Speaking about recovering after the women\'s 100m, Felix said: \"I am doing pretty good. I got some treatment. I am just excited about this race (the women\'s 200m).\" The first woman to do the 100-200m double was legendary Dutch runner Fanny Blankers-Koen, who performed the feat in London in 1948.