Here is my non-canonical list of major leaguers who have played a game in all 30 of the current parks in use. The first six players are on Washington. Unless noted, every player's 30th park was the new Nationals Park. And starting next year with new parks for the Yankees and Mets, we will wipe this slate clean until the Yankees-Mets interleague series.

Feel free to make additions or tell me if I need to delete someone:

• Nick Johnson
• Cristian Guzman
• Ron Belliard
• Aaron Boone
• Rob Macowiak
• Dmitri Young
• Tim Hudson
• Luis Gonzalez
• Mark Hendrickson
• Brian Schneider (Yankee Stadium)
• Carlos Delgado
• Carlos Beltran
• Damion Easley
• Marlon Anderson
• Moises Alou (Yankee Stadium)
• Jorge Sosa
• Mark DeRosa
• Henry Blanco
• Ted Lilly
• Jon Lieber
• Bobby Howry
• Damaso Marte
• Jimmy Rollins
• Pat Burrell
• Tom Gordon
• Jason Kendall
• Mike Cameron
• Jeff Suppan
• Brian Shouse
• Craig Counsell
• Russell Branyan
• Guillermo Mota
• Willie Harris
• Troy Glaus
• Kyle Lohse
• Adam Kennedy
• Ron Villone
• Jason LaRue
• Ray Durham
• Omar Vizquel
• Bengie Molina
• Randy Winn
• Aaron Rowand
• Chipper Jones (Angel Stadium)
• Ramon Vazquez
• Kevin Millwood
• Milton Bradley
• Chad Bradford
• Orlando Hudson
• Lance Berkman
• Carlos Lee
• Miguel Tejada
• Ty Wigginton
• Brad Ausmus
• Chris Gomez (Miller Park)
• Jerry Hairston, Jr.
• Jeremy Affeldt
• Mark Kotsay (Busch Stadium)
• Luis Vizcaino
• Marlon Byrd (Yankee Stadium)
• Jeff Kent
• Nomar Garciaparra
• Derek Lowe
• Manny Ramirez

Doug Mientkiewicz of Pittsburgh has not played in Petco Park. Jamie Moyer has not played in Great America Ball Park. Gabe Kapler has not played in Citizens Bank Park. Russ Springer, who has been in the majors since 1992, has never pitched in Progressive (formerly Jacobs) Field. Vicente Padilla has never played in the current Busch Stadium. David Weathers has never pitched at Tropicana Field.