Good news, this is an easy fix. Chances are, you're viewing your events in the Events tab. Head on over to your Website tab instead, and find the "Schedule" page under "Website Pages." Click on it!
Note: your pages may be in a different order than this screenshot - that's totally normal!
From there, you can reorder all of your events by clicking the icon on the left-hand side and dragging them to wherever you want 'em, as seen below.
We'll automatically save your changes!