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Look what people have to say about the RLYW!

CAIRO just takes the Marcels and changes the underlying assumptions and components in a bunch of ways that make the Yankees look better.
-alskor

Wow, two stupid posts in one day. I think you’ve reached your yearly quota.
sabernar

I don’t know if any of you current posters were around for that, but if so, I just can’t understand how you can call yourselves Yankee fans. Pathetic quitters is what you sounded like. Of the lame posts I could stand to read, the only person who had any confidence in the Yankees at that point was a (yeesh) Red Sox fan.
Jeter is King

Quite the attitude you have SG. Maybe you should shitcan this blog and join Steve at WasWatching? Or follow some other stupid team that has made the PS 15 of the last 17 years. Jeez… and some people think Yankee fans are entitled.
OldYanksFan




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Wednesday, October 13, 2010

Mariano Rivera’s Pitch Frequency

I was recently granted access to a platform called In Depth Baseball.  It’s a pretty impressive tool that provides heatmaps using pitchfx and hitfx data.  One of the most telling heatmaps I was first shown was Mariano Rivera’s pitch frequency.

Mariano Rivera’s Pitch Frequency in 2010 (915 pitches) vs. All 2010 Major League RHP

Notice how Rivera barely touches the middle of the plate.

Here are Mo’s Righty-Lefty heatmaps vs. the rest of the league:

Mariano Rivera’s 2010 Pitch Frequency against LHB (439 pitches) vs. All 2010 Major League Pitchers

Mariano Rivera’s 2010 Pitch Frequency against RHB (476 pitches) vs. All 2010 Major League Pitchers

As you can see from the top map, Rivera lives on the inside corner to lefty batters.  In fact, the majority of his pitches fall outside the designated strikezone.  Meanwhile, the rest of the league favors throwing down and away to LHB.

Against RHB, Mo spreads out his pitches a bit more.  However, notice how he barely ever throws to the middle inside part of the plate to righties.  He also busts righties up and in, again in contrast to the rest of the league.

As a matter of comparison, here are the pitch frequency heatmaps for 3 other AL closers:

Neftali Feliz’s 2010 Pitch Frequency (1072 pitches) vs. All 2010 Major League RHP

Joakim Soria’s 2010 Pitch Frequency (1086 pitches) vs. All 2010 Major League RHP

Rafael Soriano’s 2010 Pitch Frequency (890 pitches) vs. All 2010 Major League RHP

All three of the above closers tend to pitch to the middle of the plate, a striking contrast to Rivera’s pitch frequency. 

Lastly, here’s Mariano’s pitch frequency since 2008:

Surgical.

--Posted at 3:05 pm by Jonathan / 47 Comments | - (0)



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