Originally <a href='http://www.sportsbookreview.com/forum/showthread.php?p=26643061'>posted</a> on 12/22/2016:

The betting markets are considered largely to be efficient so the moves made are considered correct on average. If your bets are beating the closing line it means the line is moving in your favor and you are getting good numbers. If the lines do not move in your favor, it means you are most likely getting lucky in your bets.

If you win over 5000 bets, you will almost certainly beat the closing line. If not, you may be smarter than the market or an extremely lucky guy.