Elite Sportsbook and our trading team make every effort to properly grade/score the results of games in a timely fashion. In the event that an outcome is entered incorrectly, it would become necessary to "regrade" the outcome of the game to ensure everyone is paid correctly.
In the event that you see "Loss (Regraded)" it would indicated you were initially paid for a win in error and the regrade corrected this and removed the accidental payout from your account.
In the event that you see "Win (Regraded)" it would indicate you were initially not paid for a game you won, the regrade corrected this and added the winnings to your account.