Welcome to Bill James Online

This is the "public" part of Bill James Online.   Bill James Online is a place where people pay $3 a month to discuss baseball, sports and other topics.  But there are plenty of features even if you don't subscribe.
Check out our latest feature: Starting Pitcher Rankings.  Fully available to the public and updated every day.
The subscription portion of the site looks and feels much like this part, but a) contains ten or twenty times as much information, b) also contains some other features, and c) gives you the opportunity to interact with us—to pose questions for "Hey, Bill," to post articles, to comment on articles, etc.  If you’re interested in joining us or if you have additional questions, you can use the "Contact Us" link at the top. If not, enjoy the site anyway.

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Our Latest Articles

Articles marked with a padlock are only available to subscribers. To read them, join BJOL now.
On the Reliability of Park Effects
How much data do you have to study to get reliable Park Effects measurements?
Night People
Watcching an old movie on TV, baseball in the background
Stable Values
Other potential uses of this weeks' method​
Position Champions
A few of the dominant players at their positions, over time.
The Greatest of This, the Greatest of That
Building slowly on the work we did yesterday.
The Great Player of Year X
Trying to reduce the 120-year struggle to be king of the mountain to a comprehensible result.
How Well Do You Know Your BBWAA? (2023 Version)
The tradition continues. Our 7th annual installment of a Bill James Online member contest.

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