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| Explain... https://www.mlbppworld.com/viewtopic.php?f=1&t=6470 |
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| Author: | AgentP [ Tue May 22, 2012 6:21 pm ] |
| Post subject: | Explain... |
Can someone explain Fangraphs' Pitch fx to me? 1) The pitch types. What do FA, FT, CH, etc. stand for? (Yes, I know CH = changeup) 2) Movement. What does a negative number represent (i.e. Verlander's 4SFB is said to have around -10 inches horizontal break and about 8 vertical. No comprendo!) 3) Suppose FA means fastball. Does that include just 4SFB or does it also count 2SFB, CUT, SPLT? 4) Power Pros related question! Does Power/Brk Ball P count a 2SFB as a fastball or a breaking ball? |
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| Author: | Eric Davis 44 [ Wed May 23, 2012 1:14 am ] |
| Post subject: | Re: Explain... |
FA = fastball FF = four-seamer FT = two-seamer FC = cutter FS = splitter FO = forkball SI = sinker SL = slider CU = curve KC = knuckle curve EP = eephus CH = change SC = screwball KN = knuckleball UN = unknown Every pitcher is unique, so the labels aren't always perfect - plenty of gray area between the two-seamer & sinker, slider & curve, splitter & changeup, etc. |
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| Author: | Eric Davis 44 [ Wed May 23, 2012 2:01 am ] |
| Post subject: | Re: Explain... |
Movement . . . imagine a theoretical pitch that has no spin (or laces) as it travels across the heart of the plate. Vertically and horizontally it is 100% neutral, and we can say that pitch is point 0. As for decoding break, negative vertical is usually generated by some degree of top-spin (curves, slurves, big sliders, screwballs, sidearm fastballs/changeups). Positive vertical is caused by backspin (fastballs, cutters, changeups, tight sliders, sidearm breaking balls). Negative/positive horizontal depends on the pitch, but also the hand a pitcher throws with, but fastballs and changeups usually have some degree of tail and move in the opposite direction of breaking balls. Spin * Velocity = Movement (more or less), which is why a good 2-seam fastball generates so much movement. Check out TexasLeaguers for some dynamite PitchF/X tables and info. |
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| Author: | Eric Davis 44 [ Wed May 23, 2012 2:03 am ] |
| Post subject: | Re: Explain... |
PwrP impacts the frequency of the 4SFB and 2SFB. BrkP impacts the frequency of every other pitch, including SIFB and CUT. |
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| Author: | AgentP [ Wed May 23, 2012 7:03 am ] |
| Post subject: | Re: Explain... |
Thanks! |
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