FanGraphs Baseball

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  1. don’t forget to adjust for time of year

    Comment by Paul Jordan — September 20, 2011 @ 1:35 pm

  2. Yeah. Turns out the earth moves.

    Comment by Yirmiyahu — September 20, 2011 @ 1:37 pm

  3. Heresy.

    Comment by TartanElk — September 20, 2011 @ 1:40 pm

  4. Heresy? Quick! Delete this post and all the comments!

    Comment by Peerless Priceless — September 20, 2011 @ 1:43 pm

  5. Season goes from April to September, where the sun is out at a progressively different time of day. In fact each day will vary slightly from the next and in order to truly pinpoint the times in which there are shadows between the batter and pitcher, it would take a season’s worth of daily data (if not more). Hopefully someone has already done this research though while considering differing times for each day of the year.

    Comment by willghannon — September 20, 2011 @ 1:59 pm

  6. Hey! If I wanted any science, I’d be at … one of those sciencey web sites.

    Comment by Richie — September 20, 2011 @ 2:10 pm

  7. You also need to account for cloud cover.

    Comment by Dave — September 20, 2011 @ 2:17 pm

  8. I think I mentioned this back in the comments of that article, but don’t you also have to account for orientation of the stadium? Shadows could be significant, but probably of greater significance is whether the sun is in front of or behind hitters.

    Comment by mcbrown — September 20, 2011 @ 2:20 pm

  9. All great points guys.

    Now we need people to do work. How about you just qualify what you see. Say:
    “On Sept 20, 2011, at Citizen’s Bank Park, from 13:32 to 14:21, there was a shadow between the hitter and the mound.”

    Basically, watch the game, and just tell us what you see. We’ll worry about interpreting that data after we actually get some data.

    Comment by Tangotiger — September 20, 2011 @ 2:30 pm

  10. The St. Louis Post Dispatch did several articles about the shadows at Busch Stadium after the Cards lost a 3:15 game a few weeks ago to the Brewers. Here are a few of the articles. I can’t say that I have personally noted when the shadows start or stop, but based on the articles it appears they start sometime between 3:30pm and 4:00 pm and last until sometime between 5 and 6pm.

    http://www.stltoday.com/sports/baseball/professional/article_47c65f0a-68aa-5e41-8397-07d581d9ba3d.html

    http://www.stltoday.com/sports/baseball/professional/article_f547558c-8b1a-540b-8381-404e17888996.html

    http://www.stltoday.com/sports/baseball/professional/article_6047af21-6f37-5852-b4cd-99a1b055d24f.html

    Comment by Dan — September 20, 2011 @ 2:48 pm

  11. Fantastic, thank you!

    Comment by Tangotiger — September 20, 2011 @ 3:18 pm

  12. Honestly, I think that you’re going to need your crowdsourcing to cover every stadium over the course of an entire season (though you don’t have to do any game that starts long enough after sunset that the floodlights are on at the first pitch, nor any game that’s completely overcast). Or consult a meteorologist and do a great many complicated-but-not-hard angular/optical physics calculations.

    Comment by jorgath — September 20, 2011 @ 4:48 pm

  13. I’ve never done any official research on it, but I’ve watched almost every afternoon Tigers game in the last 6 years and I honestly can’t remember Comerica park ever having any issues with shadows between the mound and batters box. Maybe it would be a good park to look at?

    Comment by j6takish — September 20, 2011 @ 4:52 pm

  14. Not to worry. The earth moves, but just enough to allow the sun to comfortably revolve around it.

    Comment by Mike B. — September 20, 2011 @ 7:08 pm

  15. Thanks, appreciate it.

    Comment by tangotiger — September 21, 2011 @ 12:11 am

  16. Shows sun location at different places, dates, and times:
    http://www.timeanddate.com/worldclock/sunearth.html?n=64&month=9&day=21&year=2011&hour=13&min=20&sec=0

    Ballpark orientations:
    http://www.baseball-almanac.com/stadium/ballpark_NSEW_NL.shtml

    Comment by this guy — September 21, 2011 @ 12:30 am

  17. This data is can be generated using Google Sketchup. Almost all of the current stadiums have models available for download (http://sketchup.google.com/3dwarehouse/), and the program allows for geolocation/shadow generation, with inputs for time of day and date of year.

    Comment by Pat C — September 21, 2011 @ 6:33 am

  18. We’re all Pinky and Google is the Brain!!

    Comment by Kyle — September 21, 2011 @ 12:02 pm

  19. Very interesting concept… I wonder if they play most of the playoff games @ night to avoid and stadium shadows.
    -Jackie

    Comment by Crowd Sourcing — October 21, 2011 @ 4:56 pm

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