These percentile rankings are a score to indicate how Don Williams ranks among all historic players for several skill categories. For example, a percentile of "85% Power" would indicate a player among the top 15% of players in raw batting power, and a percentile of "Speed 3%" would indicate a player that is among the slowest players in the history of the game. These percentiles are entirely based on career statistical accomplishments for players with over 500 games played or 500 innings pitched, so may not accurately reflect an intangible ability.