While finishing less than a second outside of qualifying for the men's 800m free, Egypt's Marwan Elkamash erased an eight-year-old record off the books.
The reigning Olympic gold medalist in the 200 breast, Tatjana Schoenmaker will look to improve upon her 6th place in the 100 breast at the 2019 World Champs.
Claiming silver in the 400 free with a new African Record, Ahmed Hafnaoui was one of several swimmers from the continent that broke national records on Day 1.