Wins Boost
When you buy a number of Wins Boost, you are buying net wins. Your order will stay active and a booster will play with you until you get your additional wins.
Net win means that for each loose, you'll get an additional win ((e.g., 3-0, 4-1, 5-2, etc).
Rank Boost
When you are a rank boost, you order will stay active and a booster will play with you until you get the desired rank.
Wins
Rank