Tips Updates
Daily
Players
Teams
Leagues
Draft
Boxscores
Minor Leagues
College
People
Extra Bases
Applications
About

Data TopicsAbout TBC
Follow TBC on Twitter and Facebook

TBC is full of different Data Topics or subjects or categories or whatever you want to call them. This page is a clearing house on all the different topics we cover as well as a description of the depth of the data.

This is an encyclopedia of baseball topics on this site. Different pages on the site link to this page but usually link directly to the topic of the requesting page for your convenience. If anything is missing, let me know.


About Main -- Stats Glossary -- Data Topics -- Data Elements -- Data Inclusion Rules -- Boxscore Data -- About Me -- FAQ -- How to Use Site -- Search Tips -- Page Sponsorships -- Contact TBC

The Data Store has all of our data available for sale in custom outputs and formats for a reasonable price.

Affiliates

Since we have minor league data since 1977, we have affiliate information for MLB organizations since 1977 as well. The Minors are organized into a hierarchy of levels. AAA, AA, Hi A, Lo A, Short-Season A and Rookie. Major League teams have a team at most of these levels and they move their drafted (and signed) players through these affiliates each year.

Arizona Fall League

The Arizona Fall League (AFL) is a 6-team minor league prospect league run by MLB. Each MLB team sends 7 players. They'll play against other top prospects and get additional development. TBC has batting and pitching statistics since 1999 though the league itself has been around since 1992. The stats will also appear in a player's "other statistics" section on their player page.

Attendance

Attendance is used to calculate the number of people in attendance at a game. Up until 1999, the attendance values were based on those who actually attended the game. From 2000 on, the number of tickets sold was used. The reason for the change was to help calculate revenue sharing between teams.

Season-level attendance is available for MLB since 1903 while game-level attendance is available since 1957. Double-headers will have a single attendance. One of the games will be listed at 0. TBC also has minor league attendance numbers since 1977 at the season-level.

Australian Baseball League

The Australian Baseball League is an MLB off-season professional-calibre baseball league taking place over the US winter (Australian Summer). The league is partially funded by MLB and in addition to Australian-born players, many American Players will make the trip to play down under for extra experience in an English-speaking environment. The ABL provides an alternate to latin-american winter leagues.

Within TBC, Australian League batting and pitching stats are available since 2010 and are included in the "Other Stats" section of a player page.

Awards

The awards section focuses on MLB, Minor Leagues and College Division I. Most of the awards are league-level and even then, we may not have them all. Weekly or team-specific awards are often excluded. This is not intended to be a LinkedIn for baseball players and so please don't ask us to make sure a player's awards listing is perfect.

Voting information is available for all MLB Major Awards. (MVP, Cy Young, Rookie of the Year, Manager of the Year)

Ballparks and Stadiums

For each team with its own season page, there should be a ballpark listed. Ballparks and stadiums are organized into its own section under Extra Bases and basically contains 2 types of information. There are some basic attributes about these stadiums and a list of recent tenants and their results. Important to know that this is not a ballpark review site nor do we include any park effects. There are many better web sites for more detailed ballpark information.

Birthdays

The Birthdays section will display a list of birthdays for the current or selected date. Birthdays are tracked in player bios wherever possible. Like most biography attributes, the data skews more complete at the Major League Level. Minor League birthdays aren't too bad and college is even less.

In the case of college and early minor league players, often you will see only the player's year of birth and in many cases, it is an estimated year of birth. The placeholder birth year is so we can calculate age. The year is deduced based on college stats and graduating year of high school.

Dates on the site are mostly displayed in YYYY-MM-DD format. This allows for easier sorting and legible display.

Boxscores

There's a dedicated page to talk about Boxscores since most of the data comes from Retrosheet.

Cities

Another trivial section on the site, the city pages are just a consolidation of all data elements linked to a particular city. Each player, high school, team and stadium is given a city. For players it is place of birth. The city assigned to a player is intended to be his birth city, however, in many cases, the city may in fact be the player's city of reisdence at the time of data collection. MLB birth cities should be correct (or close to correct) with Minor League being relatively close in accuracy. College is where things start to be a bit less accurate.

Team cities are usually based on the actual physical location of the team, regardless of the team name. The Texas Rangers will be listed in Arlington, Texas. High Schools are sometimes accidentally listed in bordering municipalities. Just remember the purpose of this section. Consolidation of data elements for the purpose of trivial presentation. In all cases of error, we will make the requested changes.

College Data

TBC has been collecting full Division I college stats since 2002 and for each player on each roster since then, there is a player page dedicated to the player as well as a team page with full batting and pitching statistics. You may notice throughout the site that many players have other non Div I college stats listed. We cannot promise that other college levels (NCAA II,III,NAIA and Junior college) are complete. The intention is to someday fill in this historical data and be the only site with full college statistical datasets in 1 place.

College Class Designation

College players have limited college eligibility. Though there are many rules and regulations surrounding player eligibility, to keep it simple, we will explain it this way. A player has 4 seasons in college. Freshman year, Sophomore Year, Junior Year and Senior Year. If a player is "red-Shirted", he may be granted an additional season provided he doesn't play too many games in the season. Players may be drafted in their Junior Year of a 4-year university or any season if in Junior College. Players may be drafted in their sophomore year from 4-year colleges if they meet a minimum age requirement.

The College Class attribute is available in drafts since 2006 so this can be used as one of your criteria in the Draft Research Application. The class will also be displayed, where available on player pages and team stats pages.

College Summer Leagues

College Summer Leagues are for college players with college eligibility remaining and at least one year of college ball played. They take place after the college regular season and tournaments have completed. There are summer leagues across the country. Players use wood bats whereas in college they use aluminum. Draft-eligible players are scouted in these leagues. Often, the better players are in the Cape Cod League. Scouts can evaluate players with wood bats against other top-level prospects.

TBC has College Summer League data since 2010 for many leagues. The exception is the Cape Cod League which is available since 1999.

College World Series

For the purpose of this site, the College World Series encompasses the entire 64-team NCAA I Baseball Tournament. The COllege World Series itself is the 8-team final phase of the NCAA tournament that takes place in Omaha,Nebraska in early June. The 1st phase of the tournament is called the Regionals where 64 teams are split into 16 groups of 4 across the country. The 16 winners of the mini 4-team tournaments then advanced to the Super-Regionals where 16 best-of-3 series occur. The 8 winners advanced to the CWS.

TBC has complete CWS high-level details since 1947. This includes basically participation per round. The scores and results are not recorded but a team's full tournament history will be available for view regarding participation.

Deaths

Death dates are captured within a few days of publicly being released. Major Leaguers, Minor Leaguers and drafted players should be relatively accurate, however college players, though most college players on the site are still young, are often tougher to come by since these death dates may not be publicly released.

Some older players may be listed with ages of 120+. Obviously, this is just a lack of a reported death date for these players. We apologize if this is mis-leading.

The Cause of Death is available for some players and displayed only on their profile page. A long-term project that we hope to eventualy complete.

Debuts

For Major Leaguers, the debut date and game are tracked and viewable in the debuts section (Under Leagues). On a player page, you can link to a debut game by clicking on the game in his bio section. The Debuts section on the site includes a list of all debut players for a given year with game stats and career MLB statistics.

As soon as a players makes their MLB debut (within a day usually), their High Level will switch to MLB.

Draft

TBC has the full MLB draft since 1965. Every pick of every round in every phase by every team. Draft information is a standard column in data grids for players and on many pages, you can filter for drafted players or 1st round picks. The Draft Research Application gives you the power to search the history of the draft based on several filters. You can answer almost any question about the draft with this application. If you would prefer a download of the full draft in one file, you can visit our Data Store where one of our most popular sellers is the Draft Register, an Excel file (csv actually) with a row for every historical draft pick.

Fielding Data

Fielding data is collected after the season for both MLB and Minors. College fielding data is not available. The detail in MLB stats is greater than the Minors (Innings and Games Started) but does not delve into more complex metrics.

Free Agents

Since TBC trackers player status and all roster movement, we are able to provide you a list, at any given moment, of who is a free agent. In fact, the Free Agent Application provides the ability to research who is still available on the market based on a few different filters.

Futures Game

General Managers

High School

The high school section of TBC is essentially built around a list of baseball alumni per school. We've tried to gather some basic pertinent attributes about each school and have captured some rankings data at a National level but at its essence, its alumni per school. Of course the list is not complete per school as the High School field is a constant work-in-progress.

We have high schools for a high% of players at all levels and site visitors often give us the schools we are missing. Many players will switch high schools but we only capture the graduating school. Some schools may be in duplicate due to spelling or due to the location of the school not being clear. Source data will usually get the high school name correct but the city may be listed as a hometown as opposed to the physical address of the school.

High School Rankings

Injuries/Disabled List

Japanese Baseball

Jobs in Baseball

Not necessarily complete for all players. Coaching staffs should be complete for included teams but other jobs such as scout or coordinator may not be included. This type of information is often submitted by the person himself or by a site user. I am always interested in keeping this section up to date but it also important to understand its limitations.
See Team Personnel section for more information.

Managers

Mexican League

Minor League Data

MLB Data

Complete since 1871. Includes season summary batting, pitching and fielding statistics as well as more detailed statistics such as game logs, splits, non-standard stats, at-bat level and pitch-level data. Boxscore data is available since 1957 and so that is the starting point for the more detailed stats. Pitch-level data is available since 2010.

Nicknames

The Nicknames section allows you to see a list of teams per nickname. Its based on the teams and high schools available in the database. Its not complete. Its contingent on the Team Inclusion rules and the high schools with at least 1 alumni and for which we have found the team nickname.

Other Statistics

These are statistics for leagues that are not considered to be regular seasons. Summer Leagues, Fall Leagues, Spring Training and Playoff stats are mostly included here.

Payroll/Salary

Personnel for Teams

On each team capsule page (Stats page), there is a Personnel section at the bottom that will include basic bio information for the coaches and support staff known for that team. Its not a complete list. Personnel data will appear as "Personnel" on the bottom of a team capsulre page as well as in the "Jobs" section of a player's page.

As a general rule, Major League teams should have a full list of MLB staff coaches as well as some coordinators and scouts.
Minor league and indy league teams should have assistant coaches and Managers.
COllege teams should have the Head Coach and paid assistant coaches.

Some baseball people will send us their job history and we will add these to our DB. Also important to note that coaches of any team included on the site (see Inclusion Rules) will automatically get a player page on the site, even if he never played college or Pro.

Pitches

Pitches data can be separated into 2 types. (1) Pitch result data (Ball,Strike,Foul,Swing,Called etc) or (2) Pitch metrics (Pitch Type,Velocity)

Pitch result data is available in full since 1988 with sporadic pitches in earlier seasons. This pitch data is sourced from Retrosheet and is quite detailed. In addition to tracking pitch results, it will also track when runners are in motion, pickoff throws by pitcher or catcher, intentional balls, pitchouts and any play not involving the batter.

Pitch metrics go much deeper and are available since 2010. This dataset includes pitch velocity, pitch result, pitch Type and even pitch location that can be re-displayed in a strike zone.

Players

Playoffs

MLB Playoffs history is available in full since 1903. This includes a high-level game and stats summary of the series as well as individual boxscores. Note that playoffs data are only available in detail for MLB. Minor league and college playoff history is limited to a data element in their team summary page indicating the round in which they lost or if they were League Champions. College goes into a bit more detail with the College World Series section.

The MLB data is displayed with a front page, a yearly summary by game, a series page with individual batting and pitching stats as well as game summary and finally, individual boxscores in the Boxes section of the site.

The only difference between Playoffs and Regular Season boxscores is the absence of Pitch Detail (Pitch Speed and Pitch Type). The pith results will still be similar to regular season boxes.

Prospects

Prospect data is available since 1983. TBC has Baseball America pre-season rankings. Top 10s per team since 1983 and Top 100 MLB since 1990. MLB Pipeline team top 30s and MLB top 100 was added in 2016 and there may other prospect ranking sources in the future. In all cases, the rankings are pre-season and static. Many sources now update their rankings throughout the season and as players get promoted but TBC will not track this slow evolution.

Retirements

RPI Rankings

College RPI Rankings are available since 2000. Known in full as Ratings Percentage Index (RPI). It is an algorithm that attempts to accuately rank all Division I NCAA teams. It is easy enough to rank each team within their own division or conference since they play these teams and can be compared directly. However, not all conferences are of the same calibre despite the fact that they are in the same NCAA Division. The teams in the SEC are of a much higher calibre than the teams in the America East Conference. Yet it is possible for a team in the America East to be 25-2 and a team in the SEC to be 9-17. This does not mean the team in the America East is better. The RPI algorithm takes into consideration a school's calibre of schedule and the schedule of those direct opponents before ranking each school. Therefore, it is very possible that a team in the SEC that is 9-17 finds itself higher in the rankings than the 25-2 team in the America East because the calibre of schedule between the 2 teams is far from equal.

Rosters

Rule 5 Draft

The Rule 5 draft is held every December at the baseball Winter Meetings. Its a special draft to expose experienced players who were not protected by their organization. The players must surpass the requirements to be exposed. A team can block the player from being available by promoting them to their 40-man roster. The Rule 4 draft is the Amateur Entry draft.

Data has been collected since 1997 for the Rule 5 draft. All of the data is displayed on one page and is filterable by team and some other elements.

Scouts

Scouts are tracked in 2 ways on the site. First, within the jobs section of a player's profile and second, as a record associated with a drafted player.

Within Jobs, the job of Amateur or Pro Scout (or any other scouting-related job) may be listed. This is not a complete listing and is based mostly on submissions by the scouts themselves.

Within the draft database, each drafted player record can have up to 3 scouts listed as the amateur signing scouts. Scout names will appear within the biography section of a player's page but may not appear by default in the Draft Research Application.

Service Time

Service time is the number of days a player is on a Major League roster. The number is expressed as YY.DDD. The number of days in a service time year is 172 days. The number of days in an MLB season is about 183 (includes off-days) and so teams can control a player's service time by holding them in the minors for a couple of weeks at the beginning of the season.

Service Time is ultimately used to determine a player's arbitration years and their free agency status. Service time is also accumulated while on the MLB Disabled List. As of 2017, free agency begins the winter after a player reaches 6.000 years of service time.

Service Time also provides additional benefits such as roster security.

Signing Bonuses

Signing bonuses are incentives for drafted players to sign with their drafting teams. The values offered by teams have changed over the years and MLB currently uses a slot system with recommended values per draft slot as well as a signing bonus salary cap for the first 10 rounds with teams getting a different cap depending on their finishing order in the standings the prior season.

There is a deadline for signings shortly after the draft in June. A player who is signed will usually immediately enter the drafting team's minor league system at Rookie level or slightly higher.

The Signing Bonus data on TBC is fairly good and based on what has been made publicly available over the years. It is heavily skewed towards the top 10 rounds and more recent seasons. The value is sometimes displayed in actual dollars ($1,000,000) or in millions (1.0). $500,000 would be displayed as 0.5.

You can purchase a download of whatever Signing Bonus data we have from the Data Store. There is no easy way to gather Signing Bonus data on the site (by design) since it has been a difficult data element to track over the years.

Spring Training

The MLB exhbition season takes place in late February and March and can sometimes extend into early April. The overall title is Spring Training and is divided into 2 geographical leagues. The Grapefruit Leagues takes place in Florida and the Cactus Leagues in Arizona.

Though experts claim the stats are meaningless as a whole, historically, it could be fun to search through the data to help understand organizational moves.

TBC has full batting and pitching stats since 2006 for MLB spring training. Team win-loss records are only based on the Wins-Losses in the pitching stats and won't always add up to the actual number of games played since ties occur regularly. The stats will appear under the Other Statistics section since it is considered an off-season league.

Stadiums

Link to Ballparks

Talent Ratings

Transactions Data

Transactions data can be divided into 2 groups. Post-2012 and pre-2012. In May of 2012, TBC started tracking daily transactions for MLB and Minor Leaguers. Including all roster changes such as demotions, promotions, contracts, trades, injuries, DFAs, outrights and 40man Roster status and more. The data pre-2012 is related only to Major Leaguers, similar to the transactions listing you would see on Baseball Reference or Retrosheet. In addition to transactions, disabled list data is available since the early 2000s for the pre-2012 data as well.

Though the transaction-level data post-2012 has dates, the dates are not always exact. Another limitation is that contracts mostly do not include renewals though you could find player salaries on the player page.

Umpires

Uniform Numbers

Wherever possible, Uniform Numbers have been captured per player/season. MLB uniforms are available in full since the early 1930s. Minor League uniform numbers are available for more recent seasons and a bit more sporadic throughout history based on availability during research. College Uniform numbers are also available for Division I teams. The uniform number is listed within player page and stat pages and is searchable through the Uniforms Research Application