World silver medallist Hannah England makes a strong return to form while Lisa Dobriskey and Laura Weightman also qualify by right
Hannah England missed a lot of training this summer after suffering a severe spike-wound to her Achilles tendon in Hengelo but the world silver medallist was a comfortable qualifier from the first 1500m heat.
Reports emerged England was making great strides in the pre-Games training camp and she demonstrated a good turn of pace on the final lap, qualifying by right in 4:05.73.
Beijing fourth placer Lisa Dobriskey admitted she was nervous as the second heat ambled through 800m in 2:23.47 but she coped well with the slow pace, winning the second heat in 4:13.32.
Laura Weightman is renowned for her tactical nous and the UK champion ran a well-measured heat on her senior international track debut. The Steve Cram-coached athlete qualified automatically with 4:07.29.
The two casualties from the heats were world indoor champion Genzebe Dibaba from Ethiopia who pulled a hamstring and was taken off the track in a wheelchair and 3:59 performer Ekaterina Martynova from Russia.
Sally Pearson lost to Kellie Wells at Crystal Palace last month but the world champion was commanding in the heats, qualifying fastest with 12.57. Lolo Jones set a season’s best of 12.68 to qualify comfortably along with Wells in 12.69.
World fourth placer Tiffany Porter’s build-up hasn’t been perfect but she progressed as one of the fastest qualifiers into the semi-finals with 12.79 from the first heat. As expected, Jessica Ennis elected not to compete.
The most noteworthy non-qualifier was former world champion Brigitte Foster-Hylton who, at 37, had got herself back into superb shape after a myriad of injuries. The 12.51 performer from Jamaica was distraught after clattering a hurdle mid-race which ended her Olympic campaign.
Athens Olympic champion Yuriy Borzakovskiy looked on the verge of elimination from the 800m after finishing fifth in heat four in 1:46.29. At this point, he was the third of three fastest qualifiers but none of the non-automatic qualifiers ran faster in the remaining heats.
World record-holder David Rudisha barely drew breath as he qualified with 1:45.90.
Andrew Osagie left it late but the UK champion narrowly qualified by right with 1:46.42. He was only three-hundredths ahead of fourth-placed Wesley Vazquez who didn’t qualify so Osagie didn’t give himself any margin for error.
Gareth Warburton, fifth in heat three with 1:46.97 and Michael Rimmer, fifth in heat five in 1:49.05, didn’t make it.
Lawrence Okoye wasn’t in a qualifying position for the first two rounds but the UK record-holder qualified for the discus final with a clutch third-round throw of 65.28m.
Abdul Buhari and Brett Morse, who threw 60.08m and 58.18m, didn’t come close to making the final.
Nadzeya Ostapchuk and Valerie Adams set the two longest marks in the history of Olympic shot put qualifying of 20.76m and 20.40m respectively. They were more than a metre ahead of Russian champion Yevgeniya Kolodko and the final is fully expected to be a head-to-head as between them, they hold the eleven best puts in the world this year.
World bronze medallist Jillian Camarena-Williams and European champion Nadine Kleinert surprisingly failed to progress from qualifying.