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Featuring: XERA - Baseball's statistical scouting report . . . and standard stats, too. XERA measures the productivity of any player or team by calculating a normal distribution of traditional baseball numbers.

☼ If you're not yet familiar with XERA, we suggest clicking this link ►►► XERA Objectives to learn more.

☼ Then check out this link ►►► XERA History to see how well it's worked over the years - always using the SAME formulas. When compcompared to actual data, no other system evaluates the production of (offensive AND defensive) earned runs more accurately than XERA.

GillXL, LLC can translate and reformat virtually any database file (even text-based) into a sortable Excel application. Please contact us at xerastats@gmail.com. This website and all its associated formulas and stats, are by GillXL, LLC personnel.

Updated daily: Standings and Ranks through July 3, 2009 at 11:20 PM EDT. This page shows detailed 2009 MLB standings, runs scored, opponents runs scored, and Runs² standings. We also show runs scored/allowed on a per-game basis. We have magic numbers for each division leader, and mathematically projected full-season wins for each team, from the beginning of the season. As of this morning (7/3/09), the Los Angeles Dodgers have the best ratio of runs scored to runs allowed. The Tampa Bay Rays have the best per-game run differential. The New York Yankees have the most runs scored per game. The San Francisco Giants have allowed the fewest runs per game. In 2009 interleague competition, the AL finished ahead of the NL by 23 games and 140 runs!

Updated daily: For complete 2009 XERA and standard stats on 1,074 players through 7/2/2009, click this (the Various XERA Stat Sheets Quick Click Link), and then just click the Hitters09 tab or the Pitchers09 tab. The complete stats involve extracting information from 3 databases. That information is then correlated to existing formulas on Excel spreadsheets, and sorted.

Updated twice weekly: Be sure to check out the 2009MLB tab in the Various XERA Stat Sheets section, as well, for XERA Rankings of each team (updated twice weekly). The Red Sox are currently ranked number one. Last update: July 1, 2009.

Scroll down to the list with the light-blue background (like this) to find more details about the various baseball stats reports on this website.

THIS symbol (throughout the text) will link to a variety of unique sabermetric material. These pages should provide a good overview of XERA and other useful baseball stats.

All the XERA reports are now available in Excel format for FREE! The Excel files give you much more flexibility than the website - headings and sortability, for example. This is the way to transfer any of our spreadsheet links (or anyone else's) to your Excel files: Highlight what you want to transfer, by clicking and dragging, from your choice of a spreadsheet link. You can highlight the whole page, if you'd like. Copy that data by holding the Control key (Ctrl) and clicking C. Open your choice of an Excel file. Place the curser in the top left cell of where you want to paste it. Hold the Alternate key (Alt) and click E. Then click S (by itself), then Enter (HTML).

We especially recommend Lee Sinins' Complete Baseball Encyclopedia (CBE), which is available, for a very reasonable price, on CD. It offers sortable stats (including Sabermetrics) on every player, every year. It also covers team and league records very well. Nearly every player stat on this XERA baseball site was derived from the (updated to include 2009 stats!) CBE (this is an unsolicited recommendation)! The CBE web address is www.baseball-encyclopedia.com.

We plan to offer updated information that was originally published in Mathematics in Baseball : The Science of the Art, by statistician Dwight Gill (a member of American Mensa) and sports writer Tad Reeve, just before the spring of 1989 and updated years later. XERA (eXpected Earned Run Average) is baseball's statistical scouting report. Ninety-four league-seasons of data verify its accuracy and comprehensive nature. All the formulas were developed by Dwight Gill. Ron Shandler uses the basic copyrighted formula in his annual Fantasy Baseball book. The original XERA book is no longer in print (because of its season-specific nature), but many of its concepts have been assimilated by major league teams - especially to statistically evaluate players. The New York Mets started using the updated XERA formulas during the 2004 season. The newer formulas have the same level of precision as the originals, and are easier to calculate. No "normalizing factor" is used in the current XERA formulas, the same equations are used every year. XERA invites comparisons to any other systems, or actual data. Click THIS to see why.

Click THIS to go to the page that introduces XERA - Baseball's Statistical Scouting Report:

The key to XERA: XERA (eXpected Earned Run Average) itself, is a provably accurate mathematical technique that measures all players (including hitters) on a scale that is familiar to every baseball fan - ERA or Earned Run Average. XERA not only measures the productivity of a player, much like Bill James's and Pete Palmer's methodologies, it also breaks down standard baseball stats into a "scouting report" that clearly demonstrates specific strengths and weaknesses of each player.

We'll also be showing a number of other baseball-related statistics, in addition to XERA. Our baseball statistics are based on the science that deals with the analysis and interpretation of numerical data, that uses mathematical theories of probability, not merely the data itself.

The Various XERA Stat Sheets Quick Link, and then the appropriate tab will lead to various XERA baseball reports . . .

2) 2009 MLB tab to see XERA, and plenty of conventional stats, for every team in the majors, this season.

3) 2008 MLB tab to see XERA, and plenty of conventional stats, for every team in the majors, last season.

4) 2007 MLB tab to see TEAM XERA, and plenty of conventional stats, for every 2007 major league team.

5) Hitters09 tab to see XERA, and plenty of conventional stats, for the hitters of 2009.

6) Pitchers09 tab to see XERA, and plenty of conventional stats, for the pitchers of 2009.

7) LeftRight tab to see how XERA makes it possible to determine the true (run-scoring) effects of the lefty/righty theory with final 2007, and 2006 stats.

8) Grt Hitters tab to see XERA demonstrate the skills of over 300 of baseball's greatest hitters (career, all time) . . .

9) Grt Pitchers tab to see XERA demonstrate the skills of over 250 of baseball's greatest pitchers (all pitchers with 150 wins or saves, career, all time) . . .

10) 20W Seasons tab to see detailed XERA data, and standard stats, for all 805 20-game winners since the 1900 season.

11) H Seasons tab to see how detailed XERA data, and standard stats, for 600 of the best hitting seasons in baseball history.

12) BarryB tab to see a detailed year-by-year XERA breakdown of Barry Bonds' incredible career - before 2000 and after . . . This guy got dramatically BETTER after he turned 35 . . . or was it the steroids? In response to a number of requests, we've added tabs for the the careers of Hank Aaron and Babe Ruth, as well.

Got questions (or suggestions, or comments)? Check it out on one of the pages of this website, or contact us at xerastats@gmail.com. We want to provide baseball fans with interesting and unique information. Click THIS to check out the answers to your early questions.