#### Article written by Chris Quick

MarkOC

Are those spin rates in RPMs? A 90-mph fastball (average speed) takes less than 0.5 sec to reach the plate. That's about 19 revolutions! (60.5/5280/90)*3600 = 0.46 sec (0.46/60)*2500 = 19.1 rev I'm assuming the change is thrown with less spin by pushing it back further in the hand, or not snapping it off the fingertips, reducing the backspin. That and the slower speed would give it the familiar "drop." (Any pitchers out there who could illuminate me?)

kenshin

Ohh good. I felt like I was taking crazy pills after the prior graph showed what I thought was the spin rate. Still, I didn't realize quite how much rotation a fastball has on it.

Chris

I should note, that I'm talking about spin direction and not spin rate. Spin direction is kinda self explanatory, it's the direction in which the pitcher spun the ball. I'll post a plot on spin rate soon.

Chris

Nope, the changeup has similar action as the fastball in terms of spin. It's just thrown slower. The curveball actually spins in a different manner than a fastball or changeup.

kenshin

I think you may have curveball/changeup confused Chris. Shouldn't the curveball have significantly more spin (and therefore be the orange circle?)

kenshin

W/R/T the 138 game, he certainly does tend to miss up but he actually worked his fastball lower in the zone than I anticipated.

Chris

I'll check out a season view of Lincecum's fastball placement, but I'd say he's more likely to miss up with the pitch. Even if you're eyeballing the 138 pitch game, Lincecum got a bunch of fastballs in the zone. Yesterday, most were out of the zone.

kenshin

The pitch FX velocity is interesting as the broadcast consistently had his fastball in the 94/94 mph range. Lincecum looked about as close to unhittable as pitcher can in a 3 inning, 3 run outing. I am reassured (not that you were suggesting otherwise) that even at his worst, Timmy was still pretty damn good. As the pitchfx data confirms. Almost of of Timmy's fastballs were high. Does he always throw up-in-the-zone fastballs or was that part of his command issue? I honestly can't remember from last season.

baetown415

It's because Tim's let all the adoration and media attention and video game cover get to his head! HE'S NOT A GAMER ANYMORE!!!!