The 200 metres was among the casualties in a revised Diamond League schedule announced by the IAAF on Wednesday.
Nia Ali took inspiration from other gold-medal winning mothers as she won the 100 metres hurdles title on the last day in Doha.
Lelisa Desisa held off compatriot Mosinet Geremew to win the men's marathon at the World Athletics Championships.
Dutchwoman Sifan Hassan became the first female to win both the 1500 metres and 10,000m titles at the same World Championships.
The World Athletics Championships in Doha had not brought in the crowds but Qatar high-jump star Mutaz Essa Barshim made sure that changed.
A second world record of 2019 gave Dalilah Muhammad gold in the 400 metres hurdles, ahead of USA team-mate Sydney McLaughlin.
The men's and women's multi-event competitions reached their climax on Thursday, with Niklas Kaul and Katarina Johnson-Thompson triumphing.
Spanish hurdler Orlando Ortega missed out on a World Championship medal because of a falling rival, but the IAAF gave him a second bronze.
There was glory for Dina Asher-Smith in the 200m as Omar McLeod endured a nightmare end to his 110m hurdles defence.
There was plenty of reason for American celebration in Doha as both Noah Lyles and Donavan Brazier won gold, though in contrasting fashions.