Wu Yanni of China ended up the womens 60-meter hurdles semifinals at the World Athletics Indoor Championships in Nanjing, east Chinas Jiangsu Province, in 8.01 seconds, on Sunday.
Her efficiency set the new domestic record of the occasion, however was unsatisfactory to send her to the final.Devynne Charlton of the Bahamas won the gold medal of the event in a season-best 7.72 seconds.
The silver went to Ditaji Kambundji of Switzerland who was just 0.01 second behind.
Ackera Nugent of Jamaica remained in 3rd in 7.74 seconds.American sprinters controlled the maless 4x400m relay, clocking 3:03.13 for the title.
Chris Bailey, Brian Faust, and Jacory Patterson teamed up with Elija Godwin to storm to triumph, completing nearly 2 seconds ahead of Jamaica.
China, which had been in 3rd place for several laps, saw Hungarys Attila Molnar surge ahead to protect the bronze with a national record of 3:06.03.
China finished fourth with a nationwide record of 3:06.90.
Quanera Hayes, Bailey Lear, Rosey Effiong, and Alexis Holmes declared the ladiess 4x400m relay gold for the USA also after ending up the last in 3:27.45.
Poland followed with silver in 3:32.05, while Australia took the bronze in 3:32.65.
A thrilling battle among American Josh Hoey, Belgiums Eliott Crestan and Spains Elvin Canales in the mens 800m last ended with a close win for Hoey in 1:44.77.
He rose to the front in the last stretch, but in a remarkable surface, he faded a little, hanging on simply enough to win by a simple 0.04 seconds.The femaless 800m gold went to South Africas Prudence Sekgodisoa who set a world-leading indoor personal finest of 1:58.40 to secure her very first worldwide medal.
Nigist Getachew of Ethiopia was available in second and Patricia Silva in third.Norwegian star Jakob Ingebrigtsen completed an impressive range double, following his gold in the 3,000 m with another win in the 1,500 m, clocking 3:38.79.
Britains Neil Gourley took silver in 3:39.07, while American Luke Houser declared the bronze.Ethiopias Gudaf Tsegay continued to shine, improving her own championship record to 3:54.86 in the femaless 1,500 m.
She led a 1-2 finish for Ethiopia, with Diribe Welteji taking silver in 3:59.30.
Britains Georgia Hunter Bell completed the podium with a personal finest of 3:59.84.
Italys Mattia Furlani skyrocketed to success in the long dive with a winning leap of 8.30 meters.
Jamaicas Wayne Pinnock followed carefully behind with a fourth-round dive of 8.29 meters, while Australias Liam Adcock, in his first indoor competitors, made bronze with 8.28 meters.American Claire Bryant recorded the ladiess long jump title in a spectacular performance.
In her major worldwide launching, Bryant led from the first round and set an individual finest of 6.96 meters in the 5th round, protecting gold.
Switzerlands Annik Kalin made silver, while Spains Fatima Diame claimed bronze.In the high jump, Australias Nicola Olyslagers effectively protected her title with a clearance of 1.97 meters, edging out her teammate Eleanor Patterson.
Ukraines Yaroslava Mahuchikh took the bronze with 1.95 meters.New Zealands Tom Walsh claimed his 3rd shot put title, launching a seasons finest of 21.65 meters to secure gold by a narrow three-centimeter margin over Swedens Roger Steen.
American Adrian Piperi took bronze with a throw of 21.48 meters.Norwegian Sander Skotheim included another accomplishment to his collection, taking the heptathlon title with a score of 6,475 points, a remarkable feat simply weeks after his European indoor title.
Estonias Johannes Erm earned silver with a nationwide record of 6,437 points, while Germanys Till Steinforth took bronze with 6,275 points.