Williams, 19, who set a new national U20 record of 11.01 on Sunday, clocked a new personal best of 10.98, despite a poor start to record her second win in as many days.
Mikiah Brisco finished second in 11.09 with Dezerea Bryant finishing third in 11.14.
Williams had given a hint of what to expect in the preliminary round when she ran 10.97 to win her heat. However, the trailing wind of 2.5m/s prevented that time from being recognized as the Jamaican national U20 record.
In the final, the wind was only 1.0 m/s well below the allowable limit of 2.0m/s.
Earlier, Yohan Blake was second in the 100m clocking 10.09s as he trailed the USA’s Ronnie Baker across the line. The American clocked 9.99.
Marvin Bracy-William was third in 10.11.
Williams wasn’t the only Jamaican with a new personal best Monday night, as promising sprint hurdler Britanny Anderson clocked 12.59 to win the 100m hurdles. It was almost a duplicate of the 12.58 lifetime best she ran in the preliminary round, except for the poor start in the final where she defeated Christina Clemons, who clocked 12.64 for second place narrowly edging 2015 World Champion Danielle Williams who ran 12.65 for third.
Earlier, Javon Francis won his 400m race in 45.84. Quintaveon Poole was second in 45.87 and Myles Pringle third in 46.11.
The BVI’s Ashley Kelly won her 400m in 54.86 over Belize’s Samantha Dirks 55.01 and Canada's Carline Muir 55.48.
Shamier Little won the 400m hurdles in a world-leading 53.12 beating Jamaica’s Ronda Whyte, who ran a season-best 54.33 for the runner-up spot. Her compatriot Shiann Salmon, also ran a personal best of 54.97 for third.
In less than ideal conditions that caused delays, the performances were perhaps not as anticipated. However, the competition was keen.
Anderson was the fastest in the 100m hurdles clocking 12.59 in her heat. Tonea Marshall was the next best with 12.76, marginally better than Chanel Brissett who was third overall in 12.77.
Salmon was the best of the lot in the 400m hurdles with her time of 56.06. Her compatriot Andrenette Knight was second overall with her time of 56.44 while 2021 NCAA champion Anna Cockrell ran 56.77 for third.
Craig Allen won the 400m hurdles in 49.05. Amere Allen Lattin ran 50.69 for second place while Jamaica’s Andre Clarke was third in 51.22.
Mario Heslop was also part of a Jamaican 1-2 in the 200m, winning in 20.76 over Andre Ewers (21.02). Akeem Sirleaf of Liberia was third in 21.07.
Richardson, who was making her season debut after withdrawing from three meets earlier, clocked 11.27 to win the Women’s Exhibition 100m over Twanisha Terry (11.29) and 60m specialist Marybeth Saint-Price (11.34).
Richardson was fourth in another 100m dash on the night, running 11.37 for fourth in her heat and fifth overall. Aleia Hobbs was the fastest on the night with her time of 11.28.
Kayla White (11.30) and Brittany Brown (11.30), were second and third, respectively.
Gayle won the long jump with a leap of 7.83m.
The 19-year-old Williams, who set a national U20 record when she ran 11.02 in New Mexico in June 2019, clocked 11.01 at the JAC Summer Open, running at what she said was about 95 per cent effort, as she was saving herself for Monday’s races.
If ratified, the time run with a trailing wind of 1.4m/s would eclipse her previous mark from 2019.
A fast time was always on the cards as in the preliminary round, the 2018 World U20 100m champion, cruised to a comfortable victory in 11.19.
“The first, the preliminary, was good; just working on my start, how low I am coming out of my drive phase, and then most importantly, high knees, don’t break form and just run to the line,” she said of her first run since she ran 11.09 and 11.15 at the Miramar South Florida Invitational on May 9.
She revealed that she was still not all out at her 11.01 run as this was the ‘semi-final’ before Monday’s races at Hodges Stadium in North Florida.
“I didn’t want to go all out, that’s for tomorrow. I was about 95 per cent,” she said. “Glad to have run 11.01 not trying too much but giving enough to where I could set a national junior record and it felt great. My form was great. I liked it.”
She said she was expecting tough competition on Monday but she wants to go out get a new personal best and finish healthy.
Williams, 19, who broke her national U20 record twice between Sunday and Monday night, ran times of 11.19 and 11.01 on Sunday at the JAC Summer Open in Jacksonville, Florida. The 11.01 lowered her national u20 record of 11.02 set in Albuquerque, New Mexico in June 2019.
The record would last just over 24 hours as on Monday night at the American Track League’s Duval County Challenge inside Hodges Stadium in Jacksonville, she ran a wind-aided 10.97 and then a wind-legal 10.98 to lower the record once more.
Her coach, Ato Boldon, was pleased with everything, except Monday’s poor start, that his young charge delivered over the two days and declared afterwards that she is right where he wanted her to be four weeks from Jamaica’s National Championships to select a team to the Olympic Games in July.
“I liked the fact that she competed but it’s just strange for me to not see Briana react well to the gun. She didn’t react normally to the gun and then she panicked a little bit and stood up out of her drive phase,” he said.
“It tells me that where I thought she should be, is where she is. That was 10.87, she lost about a tenth with not having a normal Briana start.”
Looking at the bigger picture, Boldon said Williams proved that she is ready to handle multiple rounds of competition, circumstances she will face at the national championships at the end of June and at the Olympic Games in Tokyo, should she get there.
“The most important thing about this weekend is that this young lady ran 11.19, 11.01, 10.97 and 10.98 so her body can handle the work, she is ready for rounds. This was more a workout than anything else because I purposely wanted to push her,” he said.
“We will back off this week and get her ready for the last couple of races and then get her ready for trials.”
