Reigning world 100 metre champion Shelly-Ann Fraser-Pryce backed up her world leading equalling 10.67 seconds from Saturday in Paris with a 10.70 seconds clocking in the heats of 100 metres to be the fastest qualifier for Friday's semi-finals at the National Championships.
Fraser-Pryce was followed home by Briana Williams in 10.98 and Remona Burchell in 11.16.
Two-time Olympic double sprint champion Elaine Thompson-Herah easily made progress in 11.06 with Natasha Morrison second in 11.10 and Shockoria Wallace 11.21 seconds.
Shashalee Forbes clocked 11.23 to win heat 4 with Natalliah Whyte, 11.37 and Kevona Davis 11.41 also making progress.
2011 world 100 metre champion Yohan Blake ran his fastest time since 2017 as he clocked 9.93 seconds to be the fastest qualifier to Friday's semi-finals of the men's 100 metres at the National Senior Championships at the National Stadium.
Blake was followed by Kemar Bailey-Cole in a season's best 10.06 and Nigel Ellis in a 10.10.
World long jump champion Tajay Gayle also made progress from that heat in 10.13 seconds.
Jamaica's fastest man so far this year, Oblique Seville was also in sub-10 second form, winning his heat in 9.98 seconds beating Jelani Walker 10.07 and Jazeel Murphy 10.18.
Conroy Jones clocked a massive personal best 10 seconds flat to win his heat beating Jamaica's second fastest man so far this year Ackeem Blake who was a close second in 10.01. Kadrian Goldson won heat four in 10.16., with Mario Heslop 10.19 and Xavier Nairne 10.23 also making progress.