https://www.alaskaair.com/content/mi...ty-statusmatch
In order to keep your status after the initial 90-day period, you’ll need to fly on flights marketed by Alaska Airlines and operated by Alaska Airlines, Horizon or SkyWest during that initial 90-day period. Codeshare flights operated by other airlines, flights on Alaska Global Partners, award travel, and bonus miles do not count toward keeping your status. Saver fares booked in X class are excluded. In order to keep MVP status, you must fly 5,000 miles; in order to keep MVP Gold status, you must fly 10,000 miles; and in order to keep MVP Gold 75K status, you must fly 20,000 miles.