The 2007 World Cross Country Championship in Mombasa registered a record turnout of 40,000 people while many fans were turned away during the World Under-18 Championship at the 60,000-seater Kasarani Stadium.
Brock-Doyle said European and African countries will be vying to host 2023 and 2025 World Championships.
“There have been talks about Africa being ready to host a world championships in 2025 and I hope that comes true,” said Brock-Doyle.
Brock-Doyle, who was in Kenya for the United Nations Conference on Environment, was speaking when she paid a courtesy call on Athletics Kenya president Jackson Tuwei at Riadha House, Nairobi.
Tuwei said AK is discussing with the government concerning hosting 2025 World Championships and 2020 World Under-20 Championships.
Brock-Doyle said IAAF will adopt Kenyan laws on the ban of plastics bags during its championships globally.
“What was fascinating during the conference was listening to programme around plastic bags and single-use plastics bags, a campaign which is the world’s first,” said Brock-Doyle.
“We shall explore how that type of campaign works by reducing plastics in some of our athletics events moving forward,” said Brock-Doyle.