Asian corners is a football betting market requiring bettors to predict the number of corners taken in a total match - it is an over/under market.
Whole number Asian corners
This means that if a bookmaker offers 10 total Asian corners on a match, a bettor can bet on the over or under selection.
If you choose the under 10 selection, there must be nine or fewer corners in the game to receive a payout. If you bet on the over 10 selection, there must be 11 or more corners in the game to receive a payout.
However, there is a possibility of a refund on this particular market. If there is exactly 10 corners you receive a refund as it is the same number as the line you took, regardless of which over/under selection you chose.