No surprises in women's 100m butterfly heats
All the usual suspects qualify for the semifinals.
China's Yufei Zhang continues to dominate, clocking 55.82s here. Australia's McKeon sets a new Oceania record by matching Zhang.
Defending champion Sarah Sjoestroem, teenage star Torri Huske and Canada's Margaret MacNeil round the Top 5.
Update: 2021-07-24 10:55 GMT