Confusion with the /9 stats

[vBald_XBL]

Can anyone explain to me what each /9 stat does? Some cards are higher in one /9 stat than another so I’m just wondering which one to look at more than the others.

[raesONE_PSN]

H/9 correlates with a batter's primary hitting attributes, contact and power. It's the ability to make solid contact with the baseball. The higher the H/9 and the lower the hitters contact/power the smaller the inner PCI will be.

K/9 is the ability to strike out hitters. It correlates with the batter's vision. Higher K/9 means the outer PCI will be smaller and makes it harder for batters to foul off pitches.

BB/9 is the ability to limit walks. Pitchers with higher BB/9 have overall better control and find the strike zone more often than throwing a ball.