Shericka Jackson sizzling performance on Sunday’s final day of Jamaica’s National Senior Championships made her the third fastest woman over 200m in history. Only Florence Girrifth-Joyner (21.34) and Elaine Thompson-Herah (21.53) have run faster than the 27-year-old Olympic bronze medallist.

The lifetime best 200m time also moved her above Shaunae Miller-Uibo of the Bahamas as the best active combination sprinter in history by virtue of her times of 10.76 in the 100m, 21.55 and 49.47 in the 400m.

Only East Germany’s Marita Koch (10.83/21.71/47.60), Griffith-Joyner (10.49/21.34/50.89) and Marion Jones (10.65/21.62/49.59) are ranked higher than the affable Jamaica sprinter, who revealed that the jaw-dropping run on Sunday that left Olympic champion Elaine Thompson-Herah (22.05) and Shelly-Ann Fraser-Pryce (22.140 trailing in her wake, was the result of a lot of hard work.

“I have been working really hard on running the curve. I wanted to do that and I know that once I ran that curve and execute properly, just to relax down the home stretch, I knew I would have run fast but this fast I never expected it but I am grateful,” she said afterwards.

The bad news for the rest of the world is that Jackson believes she has even more speed in those powerful legs of hers, the speed that the world is likely to see at the World Athletics Championships that begin in Eugene, Oregon on July 15.

“The curve is one of the things I want to master. I think I did pretty good tonight. So many mistakes made so I know definitely coach will correct them,” she said.

“I never wanted to put any pressure on myself. People out there will put pressure but listening to my coach, execute properly, I know I can go faster.”