Comments on: Handedness of Opening Day starters http://www.baseball-reference.com/blog/archives/10324 This and that about baseball stats. Tue, 16 Jul 2013 17:01:55 +0000 hourly 1 https://wordpress.org/?v=4.6 By: Deep-League Strategies: Outfield | FanGraphs Fantasy Baseball http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-100945 Tue, 22 Mar 2011 20:16:31 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-100945 [...] handed pitcher can be sneaky useful. Best to target those who mash right-handed pitchers, who are nearly three time more likely to start than lefties, since those hitters, by default, will get more opportunities to inflict damage—or if [...]

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By: DoubleDiamond http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-100099 Sat, 19 Mar 2011 00:32:27 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-100099 Sometimes, teams like to separate the lefties and righties in the rotation. If a team has two potential #1 guys, one LH and one RH, and the #3 guy is a righthander (which is statistically more likely), then in an opening three-game series, the sequence will be RH-LH-RH.

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By: Evan http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99973 Fri, 18 Mar 2011 15:06:19 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99973 The first thing I think of is that many in baseball apparently subscribe to a philosophy that there are fringe benefits to having at least one lefty in the rotation (I think the idea is to change the look that the batter is seeing, but in this age of 5-man rotations, 3-game series and extensive video scouting I'm not sure this is of much value).

Andy cites numbers showing just over 1/4 of games started by lefties. So in a 4-man rotation about 1 per team and in a 5-man rotation 1.25 per team. With these averages it is easy to see how many teams might have 0 lefties or perhaps find themselves in a situation where they are going to have zero lefties if they don't take a marginal lefty over a marginal righty to fill the last rotation spot. If this were the case often enough we would have lefties over-represented among starting pitchers, but there would be no reason for this bias to carry over to opening day starters because opening day games are almost never started by marginal members of the rotation.

In fact, there is reason to believe that the opposite might be true. If a manager were having trouble deciding to between a LH and a RH opening day starter and believes in the changing the looks theory he would probably go with pitcher whose handedness matched the pitcher pitching game 3, which is apparently 70+% likely to be a RHP.

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By: Andy http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99972 Fri, 18 Mar 2011 15:01:31 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99972 Yeah Sean is probably working on it literally right now, as it seems Neil doesn't even know the answer.

Sometimes Sean announces stuff to us early--for example I have been using the mobile site for several weeks now. But often times, he rolls out stuff without telling us beforehand, or even announcing it at all. Raphy happens to be really good at noticing new features and I often get messages from him saying--hey did you notice this new thing?

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By: DavidRF http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99968 Fri, 18 Mar 2011 14:56:06 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99968 Looks like the 1919 links are still a bit buggy. That's understandable as they haven't been announced yet, so they might be a work in progress.

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By: Andy http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99967 Fri, 18 Mar 2011 14:53:23 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99967 Oh, hmm, let me check for clarification on that.

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By: Dave http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99966 Fri, 18 Mar 2011 14:52:46 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99966 The year box gives 1919 but the results give nothing for that year in any search I have tried

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By: Andy http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99964 Fri, 18 Mar 2011 14:04:33 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99964 The PI does.

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By: Dave http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99963 Fri, 18 Mar 2011 13:59:14 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99963 The box scores go back to 1919 but not the PI

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By: JT http://www.baseball-reference.com/blog/archives/10324/comment-page-1#comment-99950 Fri, 18 Mar 2011 12:12:36 +0000 http://www.baseball-reference.com/blog/?p=10324#comment-99950 My guess is that opening day starters more accurately reflects the natural righty-lefty rate. Certainly there will be a higher rate of lefties even there than occur in nature, because lefties are more likely to be encouraged to play baseball and to pitch.

But guys with ace-level talent are likely to find their way to the top based purely on that, while back of the order guys might make it to the majors because organizations are more eager to develop borderline lefty arms than borderline righty arms.

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