Yes they will. Your latest swim will always appear at the top of your list. If you have multiple distances ie. 25m, 50m, 100m they'll be shown in order within each section. If you're downloading multiple swim files at once from the same session, tick the "Apply to all swims" box when you add in your stroke, location, date, and time. This will download and present your swims in your swim summary in the order they were swum.