Follow 5dimes policy and grade futures immediately when they win/lose
Example: Detroit Tigers o85.5 wins - they're sitting at 87 wins, this should be graded unless you have a games clause in the initial bet. Wins AND losses, fine with me.
Making me wait an extra 12 days isn't that big a deal but there's a lot to gamble on(especially in September)
Most of these future wagers are close to the end of the season anyway
Many baseball futures involving team wins require at least 160 games be played. So technically your bet may not be a winner just yet. Regardless, most books don't grade these type of bets until season's end.