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Open BallparkMods on a PC to use the Roster Updater. Editing roster spreadsheets isn't built for phones or tablets.
← Back to Slugfest toolsDrop in an updated player list and get a clean, consistent players.csv + teams.csv back — 2027 team names and parks applied, codes validated, rosters rebuilt. Your files never leave your browser.
A players.csv with at least team, last_name and first_name. Legacy team codes (ANA, FLA, LA, MON, OAK) are modernized automatically.
Add a positions.csv (id,team,pos,pos_type) and the tool builds real defensive assignments and batting-order lineups; without it, lineups stay a neutral placeholder.
The franchise reference this tool builds against.
| Code | City | Team | Ballpark |
|---|---|---|---|
| LAA | Anaheim | Los Angeles Angels | Angel Stadium |
| ARI | Arizona | Diamondbacks | Chase Field |
| ATL | Atlanta | Braves | Truist Park |
| BAL | Baltimore | Orioles | Oriole Park at Camden Yards |
| BOS | Boston | Red Sox | Fenway Park |
| CHC | Chicago | Cubs | Wrigley Field |
| CHW | Chicago | White Sox | Rate Field |
| CIN | Cincinnati | Reds | Great American Ball Park |
| CLE | Cleveland | Guardians | Progressive Field |
| COL | Colorado | Rockies | Coors Field |
| DET | Detroit | Tigers | Comerica Park |
| MIA | Miami | Marlins | loanDepot park |
| HOU | Houston | Astros | Daikin Park |
| KC | Kansas City | Royals | Kauffman Stadium |
| LAD | Los Angeles | Dodgers | Dodger Stadium |
| MIL | Milwaukee | Brewers | American Family Field |
| MIN | Minnesota | Twins | Target Field |
| WSH | Washington | Nationals | Nationals Park |
| NYM | New York | Mets | Citi Field |
| NYY | New York | Yankees | Yankee Stadium |
| ATH | West Sacramento | Athletics | Sutter Health Park |
| PHI | Philadelphia | Phillies | Citizens Bank Park |
| PIT | Pittsburgh | Pirates | PNC Park |
| SD | San Diego | Padres | Petco Park |
| SEA | Seattle | Mariners | T-Mobile Park |
| SF | San Francisco | Giants | Oracle Park |
| STL | St. Louis | Cardinals | Busch Stadium |
| TB | Tampa Bay | Rays | Tropicana Field |
| TEX | Texas | Rangers | Globe Life Field |
| TOR | Toronto | Blue Jays | Rogers Centre |