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Welcome to Pro Eyekyuu! A site all about Japanese baseball. This site is made up of two parts: a blog about Nippon Professional Baseball (NPB), and customizable reports showing all kinds of information on the NPB. The blog is a blog, I’ll add blog posts whenever I feel like it, and especially if I update or add any new reports.

What are the reports?

From the Pitcher-Batter Head to Head Report

The reports are the main part of this site. They are customizable visual representations of data I have created using Microsoft Power BI, a data visualization program. These reports can show you statistics about the teams and players in NPB. They allow you to slice and dice the data to get to what you are looking for. Best of all, these reports are auto-updating and bilingual. After new games have been played all reports on this site will update to include the new games.

The bilingual aspect is both by convenience and by design. While this site can be viewed in either Japanese or English, the reports themselves are always bilingual, and both languages are shown side-by-side. This is easier to maintain, but more importantly, one of my goals with this site is to make NPB more accessible. If you’ve ever seen a game you’ll know that most statistics are shown in Japanese rather than the oft-used abbreviations used in the MLB. Things like WPCT, BA, and OBP are often written as 勝率, 打率, and 出塁率.

Memorize them, or don’t

Individual Japanese characters are also often used to refer to a specific team to save space on TV. For example, The Saitama Seibu Lions are often represented with the single character 西, which by itself just means “West.” Hopefully by using these reports you’ll start to recognize some of the characters used and will have a more enjoyable time taking in a game in the future.


What limitations are there?
All data on this site originates from The Official NPB Website, and the site only provides so much data. Most reports contain a red  icon that you can click on to see important details about how to use that particular report, as well as any limitations there are, so be sure to click on those when you are using a particular report. For the most part though, there are a few years to keep in mind:

2005 – No data from before the 2005 season is included in these reports. There are many websites out there that may show statistics on particular players and teams prior to 2005 if you are interested, but individual games and the like from before 2005 are not shown, and so that information is left out here. Be aware that when looking at players’ lifetime stats here, if they played prior to 2005, that information is being left out.

2011 – This is specific to the Season Level reports (which I’ll talk about later). This is the date when playoffs data started being posted. If you are looking at how a team or player performed in the Climax or Nippon Series, you can only see this going back to the 2011 playoffs.

2016 – This is the date when a LOT more details on games started being published. Namely, complete play by plays of all games by all teams. From 2016 you can view a complete play by play of every game in English. If you want to see how a specific pitcher matched up to a particular batter or type of batter, I can only reliably compare them going back to the 2016 season.

A fun game where the Tigers go hitless…

Where do I find the reports and how do I know which to use?

All reports are accessed using the Reports dropdown at the top of the page. The reports are either in the main dropdown, (as in the case of the Standings report) or in a subcategory based on the level of detail that the report can dig down to. These subcategories are Season LevelGame Level, and Individual Level.

Which level of reports to use depends on what you’re trying to answer. The easiest way is to walk you through what you can and can’t do at each level. I have also created a blog post for each report that goes more in-depth on usage and any caveats.

Season Level (Reg Season 2005 – Present, Playoffs 2011 – Present)
Season Level reports are reports that only show data at the season level. This is the highest level of reporting and is useful when all you want to do is see statistics on an individual or team and don’t care about how they performed in a particular month. The level of customization available is minimal – Year and Team or Year and Player. Basically, these are the stats you can find almost anywhere. These are the quickest loading reports. In addition, certain statistics are only available at this level, such as the total number of players who participated in double plays throughout the season.

2020 Sawamura Award winner Yudai Ohno



Game Level (2005 – Present)
Game Level reports allow you to view team or player info down to the level of an individual game. Some of the reports show things similar to the season level reports (and in fact look very similar), but you have much greater control on what you want to include in any analysis. Do you think a particular player starts the season off strong, but then gets weaker as the season wears on? Do you want to see a team’s overall performance at a particular stadium? Is the Road of Death still a thing? All of these numbers can be crunched in these reports. Note that prior to 2016 less data was provided and you can’t always calculate things like SLG due to this missing data. Each report will let you know what metrics are unavailable or unreliable at a certain point in time.

See what your team’s averages would become if you removed a player or two from the team,
and even add a player from another team.

Individual Level (2016 – Present)
Individual Level reports are the closest and most detailed reports we can get. Rather than looking at a game as a whole, we’re able to look at individual parts of each game, such as when a particular batter is at the plate and who was on the mound at that time. Is there a player you like who crossed the pond and you want to see what happened each time he took the plate? Do you want to know who can hit to opposite field? Have you ever wanted to know what active over-30 left-handed batter (minimum 20 at bats!) has the best SLG against right-handed pitchers in Hanshin Koshien Stadium, Tigers excluded? You can answer these totally important questions here. Be patient, there’s a LOT more number crunching going on in the background so it takes a bit of time for the numbers to update as you add more and more criteria to your search.

All of the (current!) customizable options in the Pitcher-Batter Head to Head report

What else?
And that’s it! If you have any questions or you spot anything fishy do let me know. I want to make these reports both powerful, easy to use, and above all accurate! I do not work for NPB and I’m not “connecting to their systems” or anything like that. I have pieced the components NPB makes available together into something usable and visual here, but there’s always the possibility of some errors. Yes, I have gone to a lot of effort to make sure the numbers for everyone add up, but there is always the possibility that some things slipped by, so by all means reach out if you think you see something. Enjoy and go Tigers!


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