Danielle Williams with a new national record in the sprint hurdles, Elaine Thompson and Shericka Jackson, were the Jamaican winners on Saturday's first day of the Muller Anniversary Games (IAAF Diamond League) in London. Williams, the 2015 world champion who is chasing an IAAF wild card to try and qualify for the Doha World Championships in September and October, was sensational in speeding to a new national record and world-leading 12.32 seconds to win 100 metres hurdles, shattering the six week old previous national record of 12.40 seconds set by Janeek Brown at the NCAA Division 1 Championships.
Williams's time is the seventh fastest in the history in the event. Former national champion Megan Tapper, who lowered her personal best to 12.63 in the heats, had to settle for 4th in 12.66 behind the American pair of Nia Ali with 12.57 and Queen Claye 12.64.
Earlier, Olympic champion and world leader Elaine Thompson clocked 22.13 seconds to win the 200 metres ahead of teammates Shashalee Forbes with 22.93 and Schillone Calvert-Powell 23.16 who were 4th and 7th respectively.
Yohan Blake posted 9.97 seconds for third in the 100m won by South African Akani Simbine in 9.93.
National champion Tajay Gayle cut the sand at a new career-best 8.32 metres on his third attempt to place second in the long behind reigning world champion Luvo Manyonga with a season best 8.37 metres.
Olympic and World Champinships bronze medallist Shericka Jackson left it late to win the 400m in 50.69 seconds ahead of training partner Stephenie-Ann McPherson, who returned a season’s best 50.74 seconds for the runner-up spot. Another Jamaican Anastasia Le-Roy was 4th in 51.46.
Jaheel Hyde with 49.79 seconds had to settle for 6th in the 400 metres hurdles, won by Norway's reigning world champion Karsten Warholm in a personal best and meet record 47.12 seconds.
Meanwhile, a scorching anchor leg from double Olympic 100 metres champion Shelly-Ann Fraser-Pryce, saw a Jamaica select team nipping Great Britain and Northern Ireland on the line in the women’s 4x100m in 42.29 seconds.
The Jamaicans had Natasha Morrison on lead-off, Elaine Thompson and Jonielle Smith but the multiple World Championship medallist Fraser-Pryce had to dig deep to get by the British team and ahead of China.
Fraser-Pryce and world and Olympic champion Omar McLeod are among 13 Jamaicans who will compete in individual events on Sunday's second and final day.