Game scores are updated during the game, so pick accuracy and point totals can fluctuate before the game ends.  (So don't get too excited if you're at the top of the list and it's only the 3rd quarter)

Updates are scheduled for half-time but close games (7 points or less) are not updated until the game is final.  

If you want to see what games have been scored, you can view that via Standings (blue games are unscored) or Schedule/Results.