A MegaMapRaid (MMR for short) is a special kind of MapRaid. It's a global event where many editors (anywhere from 350 to 1000) from all over the world meet virtually to help improve a very large area of a country or an entire small country. It is a fantastic opportunity for newer editors to work with many senior editors to gain skills and insight into mapmaking. In addition to editing experience, they will learn about the Waze editing community and form relationships.
So far, three MegaMapRaids have been held: