In the women's field, McKenzie put her hand up for nomination to the Commonwealth Games with her third title of the week follow victory in the 250m time trial and the sprint.
Her performance in controlling the final showed a maturity beyond her years, something the Southlander is proud of.
"I have been working hard on becoming more aware of the riders around and behind me,'' Mckenzie said.
"I knew they would be coming at me but I waited and picked my time. I felt under control throughout that race. I didn't even make the final of the keirin last year so this title is perhaps the most rewarding of the three this week.''
The 20-year-old was on second wheel but was rounded up with a lap to go by Natasha Hansen, before McKenzie moved to a higher gear to push to the front, leaving 500m time trial winner Katie Schofield in second ahead of Hansen.