After making it through qualifying Meares, 31, led from the front in the final and had enough experience and speed to see off Shanne Braspennincx (The Netherlands) and Lisandra Guerra (Cuba) for the silver and bronze, respectively.
Heading into the championships Meares, who won her first title in 2004, was tied with France’s Felicia Ballanger on 10 titles. The Australian secured bronze in the team sprint and silver in the 500m time trial earlier in championships but gold in the keirin – an event she won in 2011 and 2012 - has moved her into a league of her own and sets her up for next year’s Worlds in London as well the Rio 2016 Olympic Games.
"Everyone's got their eye on it except me. I'm just out there racing and trying to perform at my absolute best,” the dual-Olympic gold medallist told AAP.
"I really thought my best shot was in the time trial, I felt really disappointed after the sprint and today whatever happened, happened.
"Maybe I should do that from now on."
Although Australia were able to celebrate with Meares, the women’s keirin final was tinged with an element of disappointment Stephanie Morton. The rider appeared to puncture as she left the start and under race rules was unable to contest the re-start. She had finished second to Meares in the semi-final heat, earlier in the competition.
"I've never seen that before and she's in such good form," Meares told AAP.
"For us to go one-two in our semi-final and for her to miss the opportunity to race in the final ... I'm so sorry for her."