Double World Indoor champion Jereem Richards and Commonwealth Games women's 200 metres champion Michelle-Lee Ahye will resume the quest for podium spots when the second rounds in the Men's 400 metres final take place and the semi-final and final of the Women's 100 metres sprint takes place on the third day of World Athletics Championships at the National Athletic Centre in Budapest, Hungary on Monday.
Richards, who has run a season-best of 44.54 seconds and a new personal-best time recorded during his gold medal run at the Central American and Caribbean (CAC) Games in El Salvador on July 6, clocked 45.15 seconds to qualify for the second round as the third automatic qualifier from heat 3 on Sunday.
The race winner was Norway's Havard Bentdal Ingvaldsen, who clocked 44.39 seconds, which was the fastest time from all six races, and a new national record for him, while American Vernon Norwood clocked 44.87 seconds for third place. In fact, all six race winners went below the 45 seconds barrier.
Grenada's Kirani James clocked 44.91 seconds to top the field from heat 4 with Fuga Sato of Japan second in 44.97, a personal-best time for him and Sean Bailey of Jamaica third in 44.98 seconds.
Jamaica's Antonio Watson bested the field in heat 5 when he returned 44.77 seconds while holding off American Quincy Hall (44.86) and Japan's Yuki Joseph Nakajima, who clocked 45.15 seconds.
Heat 6 was won by Bayapo Ndori, who clocked 44.72 seconds with the final qualifiers for the next round being Alexander Doom of Belgium (44.92) a personal-best effort and Zandrion Barnes of Jamaica third in 45.05 seconds.
On the women's side, T&T's Leah Bernard running in lane 6 of heat 3 clocked 11.32 seconds to finish sixth.
The race was won by Poland's Ewa Swoboda running out of lane 1 in 10.89 seconds with American Tamari Davis second in 11.06 seconds from lane 2 and N'ketia Seedo of the Netherlands third from lane 3 in a personal best time of 11.11 seconds. Belgium's Rani Rosius running out of lane 4 clocked 11.18 seconds to round off the four qualifiers from that heat to the second round.
Bertran's compatriot, and reigning T&T national 100 metres sprint champion Michelle-Lee Ahye, 31, a former World Championship bronze medal winner, and eight-time finalist, produced a season-best of 11.16 seconds to improve on her previous season's best of 11.24 seconds to qualify for the second round from heat 4.
Jamaica's Shericka Jackson won the heat in 11.06 seconds, while Germany's Gina Luckenkemper came in third in 11.21 seconds and Nigeria's Rosemary Chukwuma crossed the finish line in fourth place in 11.24 seconds.
American vocal track star Sha'Carri Richardson won heat 5 from Jamaica's Natasha Morrison when she clocked an impressive 10.92 seconds with Morrison registering 11.02 seconds.
Shelly-Ann Fraser-Pryce won the seventh and final heat in 11.01 seconds.
There were seven preliminary races in which the fastest three and the next three fasters qualifiers advanced to the second round.
BUDAPEST, Hungary - Jamaicans Oblique Seville and Ryiem Forde both missed out on medals as American Noan Lyles produced a world-leading 9.83 seconds to win the men's 100 metres final on day two of the World Athletics Championship on Sunday.
The 22-year-old Seville, one of the standouts from the qualifying rounds, ended fourth in 9.88 seconds while Forde, also 22, was last in 10.08
Lyles, the reigning 200m World champion, produced a quality run from lane six to finish ahead of Botswana's Letsile Tebogo who took silver in a national record 9.88, and Britain's Zharnel Hughes who clinched bronze also in 9.88.
Another American Christian Coleman left the blocks well in lane four to lead early, taking with him Tebogo in lane three, as both Jamaicans struggled to get into the contest after 50 metres.
Lyles then found acceleration over the last 40 metres to burst into contention, Seville also running on strongly to the American's outside but finding himself short at the line.
Coleman was fifth in 9.92.
Javelin: Keshorn Walcott (Unattached)
400m: Jereem Richards (Abilene Wildcats)
4x100m relay: Devin Augustine (PFNJ), Jerod Elcock (Abilene Wildcats), Revell Webster Concorde, Omari Lewis (Concorde), Judah Taylor (Abilene Wildcats)
Men 4x400m relay: Jereem Richards, Asa Guevara (Abilene Wildcats), Shakeem Mc Kay (Abilene Wildcats), Renny Quow (Zenith Athletic Club), Joshua St Clair (Abilene Wildcats)
100m: Leah Bertrand (Simplex), Michelle-Lee Ahye (Unattached)
4x100m relay: Leah Bertrand, Michelle-Lee Ahye, Reyare Thomas (Abilene Wildcats), Akilah Lewis (Concorde), Taejha Badal (Memphis Pioneers)
Dexter Voisin (manager), Keston Bledman (coach), Antonia Burton (coach), Charles Joseph (coach), Mastrapa Lopez (coach), Anyl Gopeesingh (Doctor), Dr Alban Merepeza (physiotherapist), Nicole Fuentes-Charles (sports therapist), Anthony Walcott (sports therapist).