Shericka Jackson ran the third-fastest time in history to cap an outstanding campaign at Jamaica’s National Senior Athletics Championships on Sunday.

The 2020 Tokyo Olympics 100m bronze medallist sped to a world-leading 21.55s in still conditions to complete the sprint double and announce herself as a gold medal favourite for the World Championships in Oregon in three weeks’ time.

Jackson won the 100m in a season-best 10.77 on Friday night.

In her wake was the Olympic champion Elaine Thompson-Herah, who ran a season-best 22.05 and Shelly-Ann Fraser-Pryce who finished third in 22.14.

Afterwards, Jackson said she and her coach will have a look at the tape as she made several mistakes in the race that yielded the third fastest time in history. Only Florence Griffiths-Joyner’s 21.34 and Thompson-Herah’s 21.53 national record are faster than Jackson’s new lifetime best.

There was an upset in the men’s race that brought the curtains down on the championships as Andrew Hudson outraced Yohan Blake to the line and won in 20.10 to Blake’s 20.31. Finishing third was Nigel Ellis in 20.41.

Earlier, Britany Anderson emerged victorious in a close 100m hurdles battle with 2021 champion Megan Tapper, the Tokyo Olympic bronze medallist.

The 21-year-old Anderson clocked 12.53 holding off Tapper who clocked a season-best 12.60 for second place. 2015 World Champion Danielle Williams was third in 12.66.

As expected, Hansle Parchment won the 110m hurdles in 13.12 over Rasheed Broadbell (13.20) and Orlando Bennett (13.28). Omar McLeod, the 2016 Olympic champion and 2017 World Champion, finished eighth in 13.54.