Despite a slow start, the 2012 athletics season proved to be one of the most successful for the diminutive sprinter. In May, she posted 11.00 s for third at the Doha Diamond League, then 11.06 s for second place at the Rome Golden Gala. By June, she was in winning form, cruising to victory at the Adidas Grand Prix in 10.92 s. Weeks later, she won the sprint double at the Jamaican Olympic Trials in Kingston. In the 100 m, she sped to a new personal best (and world lead) of 10.70 s, which improved on the national record she set in 2009 and moved her to fourth on the all-time list of fastest 100 m sprinters. In the 200 m, she defeated the reigning world and Olympic 200 m champion Veronica Campbell-Brown in a career-best 22.10 s. While preparing for the Olympics, she was also completing her Bachelor of Science degree at the University of Technology in Jamaica.