Analyzing the home field advantage further, I noticed interesting correlations between a home team's winning percentage and the game number in a series.
Game 1: 54.2%
Game 2: 53.8%
Game 3: 53.5%
Game 4: 50.2%
The home field advantage decreases as the series progresses to the point that by Game 4 of the series, the home field advantage is nullified. Our records indicate that the oddsmakers have not appropriately adjusted for this Game 4 phenomenon and as a result, very successful systems exist for this.