Games Back Correction for Baseball

I have found that the games back calculation is not correct for baseball in the event that there is a tie game. Based on research for games back formula with ties, I have updated the formula that calculates games back in the baseball.php as follows:

$gb = (($first[0]->won_matches – $first[0]->lost_matches) – ($team->won_matches – $team->lost_matches)) / 2 – ($first[0]->draw_matches – $team->draw_matches) / 4;

This formula should be consistent for all scoring methods that use the 1-point rule with game results that end in a tie.