The Washington Senators purchased Frank Schulte from the Philadelphia Phillies.
The Chicago Cubs traded Pickles Dillhoefer, Mike Prendergast and $55,000 to the Philadelphia Phillies for Pete Alexander and Bill Killefer.
The Boston Red Sox traded Vean Gregg, Merlin Kopp, Pinch Thomas and $60,000 to the Philadelphia Athletics for Bullet Joe Bush, Wally Schang and Amos Strunk.
The Washington Senators traded Bert Gallia and $15,000 to the St. Louis Browns for Doc Lavan and Burt Shotton.
The Philadelphia Phillies traded Dode Paskert to the Chicago Cubs for Cy Williams.
The Boston Braves released Ed Walsh.
The Pittsburgh Pirates purchased Earl Hamilton from the St. Louis Browns.
The Chicago Cubs purchased Charlie Hollocher from Portland (PCL).
The Philadelphia Athletics signed Rube Oldring as a free agent.
The Chicago Cubs traded Larry Doyle, Art Wilson and $15,000 to the Boston Braves for Lefty Tyler.
The New York Giants traded Buck Herzog to the Boston Braves for Jesse Barnes and Larry Doyle.
The Pittsburgh Pirates traded Burleigh Grimes, Al Mamaux and Chuck Ward to the Brooklyn Robins for George Cutshaw and Casey Stengel.
The Philadelphia Athletics traded Stuffy McInnis to the Boston Red Sox for a player to be named later, Hick Cady and Larry Gardner. The Boston Red Sox sent Tillie Walker (February 20, 1918) to the Philadelphia Athletics to complete the trade.
The New York Yankees traded Nick Cullop, Joe Gedeon, Fritz Maisel, Les Nunamaker, Urban Shocker and $15,000 to the St. Louis Browns for Eddie Plank and Del Pratt.
The Pittsburgh Pirates traded players to be named later to Kansas City (American Association) for a player to be named later and Fritz Mollwitz. Kansas City (American Association) sent Roy Sanders (August 26, 1917) to the Pittsburgh Pirates to complete the trade. The Pittsburgh Pirates sent Alex McCarthy (February, 1918), Ray Miller (February, 1918) and Ike McAuley (February, 1918) to Kansas City (American Association) to complete the trade. (Date given is approximate. Exact date is uncertain.)
The Boston Braves purchased John Henry from the Washington Senators.
The Cleveland Indians selected Bob Groom off waivers from the St. Louis Browns.
The Boston Braves purchased Jimmy Smith from the New York Giants.
The Pittsburgh Pirates purchased Bill McKechnie from the Cincinnati Reds for $20,000.
The Philadelphia Athletics traded Ping Bodie to the New York Yankees for George Burns.
The New York Yankees purchased George Burns from the Detroit Tigers.
The Pittsburgh Pirates signed Jimmy Archer as a free agent.
As part of a 3-team trade: The New York Yankees sent Tim Hendryx to the St. Louis Browns. The Cincinnati Reds sent a player to be named later to the New York Yankees. The St. Louis Browns sent Lee Magee to the Cincinnati Reds. The Cincinnati Reds sent Tommy Clarke (April 25, 1918) to the New York Yankees to complete the trade.
The Boston Braves purchased Bunny Hearn from Toronto (International).
The Cincinnati Reds purchased Roy Mitchell from the Chicago White Sox.
The Boston Red Sox traded cash to the Cincinnati Reds for unknown compensation. Rube Foster refused to report to his new team. The Boston Red Sox sent cash (April 1, 1918) to the Cincinnati Reds to complete the trade.
The Cincinnati Reds traded Rube Foster to the Cincinnati Reds for Rube Foster. Rube Foster refused to report to his new team. The Boston Red Sox sent cash (April 1, 1918) to the Cincinnati Reds to complete the trade.
The Cincinnati Reds traded Dave Shean to the Boston Red Sox for Rube Foster. Rube Foster refused to report to his new team. The Boston Red Sox sent cash (April 1, 1918) to the Cincinnati Reds to complete the trade.
The Philadelphia Phillies traded Bert Niehoff and $500 to the St. Louis Cardinals for Milt Watson.
The St. Louis Browns released Vince Molyneaux. (Date given is approximate. Exact date is uncertain.)
The St. Louis Cardinals signed Vince Molyneaux as a free agent.
The Brooklyn Robins signed Mickey Doolin as a free agent.
The Philadelphia Athletics purchased Scott Perry from Atlanta (Southern Association).
The St. Louis Cardinals purchased Marty Kavanagh from the Cleveland Indians.
The Cincinnati Reds purchased George Smith from the New York Giants.
Indianapolis (American Association) traded Dana Fillingim to the Boston Braves for Tex Covington and Cal Crum.
The St. Louis Cardinals released Vince Molyneaux.
New London (Eastern) purchased Frank O'Rourke from the Brooklyn Robins. (Date given is approximate. Exact date is uncertain.)
The Pittsburgh Pirates selected Gus Getz off waivers from the Cleveland Indians.
The New York Giants selected Bert Niehoff off waivers from the St. Louis Cardinals.
Happy Finneran sent from the Detroit Tigers to St Paul (American Association) in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
The Boston Red Sox signed Vince Molyneaux as a free agent.
The New York Yankees purchased Happy Finneran from St Paul (American Association).
The Philadelphia Athletics purchased Merito Acosta from the Washington Senators.
The Boston Braves purchased Bill Upham from St Paul (American Association).
The Cleveland Indians purchased Ad Brennan from the Washington Senators.
The Cleveland Indians purchased Pinch Thomas from the Philadelphia Athletics.
The New York Giants purchased Ed Sicking from San Antonio (Texas).
The Brooklyn Robins signed Jake Hehl as an amateur free agent.
The New York Yankees purchased Ham Hyatt from the Boston Braves.
The New York Yankees purchased Hank Robinson from Little Rock (Southern Association).
The New York Giants purchased George Smith from the Cincinnati Reds.
The St. Louis Cardinals traded Marty Kavanagh, Tim Murchison and player to be named to Milwaukee (American Association) for Austin McHenry.
The Cincinnati Reds purchased Jesse Haines from Hutchinson (Western).
The Detroit Tigers purchased Marty Kavanagh from Milwaukee (American Association).
The Pittsburgh Pirates traded Elmer Jacobs to the Philadelphia Phillies for Erskine Mayer.
The Philadelphia Athletics signed Lou Bauer as an amateur free agent.
The Brooklyn Robins purchased George Smith from the New York Giants.
The New York Giants purchased Fred Toney from the Cincinnati Reds.
The Pittsburgh Pirates released Jimmy Archer.
The Pittsburgh Pirates traded Gus Getz to Indianapolis (American Association) for Roy Ellam.
The New York Giants purchased Bob Steele from the Pittsburgh Pirates. (Date given is approximate. Exact date is uncertain.)
The Boston Braves purchased Jake Northrop from Indianapolis (American Association).
Kansas City (American Association) loaned Babe Adams to the Pittsburgh Pirates.
The Brooklyn Robins signed Jimmy Archer as a free agent. (Date given is approximate. Exact date is uncertain.)
Wilbur Good sent from Kansas City (American Association) to the Chicago White Sox in an unknown transaction.
The New York Giants purchased Jay Kirke from Louisville (American Association). (Date given is approximate. Exact date is uncertain.)
The Boston Red Sox purchased Jack Coffey from the Detroit Tigers.
The Cincinnati Reds purchased Jimmy Archer from the Brooklyn Robins.
The New York Giants purchased George Smith from the Brooklyn Robins.
The New York Yankees purchased Pete Schneider from the Cincinnati Reds.
The New York Yankees traded Ray Caldwell, Frank Gilhooley, Slim Love, Roxy Walters and $15,000 to the Boston Red Sox for Dutch Leonard, Duffy Lewis and Ernie Shore.
The New York Yankees signed George Halas as a free agent.
The Philadelphia Athletics released Claude Davidson.
The New York Giants released Jean Dubuc.
The Boston Braves signed Hod Ford as an amateur free agent.
The Pittsburgh Pirates purchased Vic Saier from the Chicago Cubs.
The Washington Senators purchased Sam Agnew from the Boston Red Sox.
The Pittsburgh Pirates purchased Walter Barbare from the Boston Red Sox.
The New York Giants purchased Lee King from the Pittsburgh Pirates.
The Philadelphia Athletics purchased Fred Thomas from the Boston Red Sox.
The Philadelphia Athletics selected Terry Turner off waivers from the Cleveland Indians.
The New York Giants traded Bill Kelly (minors), Waite Hoyt, Jack Ogden, Jose Rodriguez, Joe Wilhoit and cash to Rochester (International) for Earl Smith.
The Boston Red Sox traded Hal Janvrin and cash to the Washington Senators for Eddie Ainsmith and George Dumont.
The Detroit Tigers traded Ossie Vitt to the Boston Red Sox for Eddie Ainsmith, Slim Love and Chick Shorten.
The St. Louis Cardinals traded Doug Baird, Gene Packard and Stuffy Stewart to the Philadelphia Phillies for Dixie Davis, Pickles Dillhoefer and Milt Stock.
The Cincinnati Reds traded Lena Blackburne to the Boston Braves for Wally Rehg.
The Cincinnati Reds traded Tommy Griffith to the Brooklyn Robins for Jake Daubert.
The St. Louis Cardinals selected Burt Shotton off waivers from the Washington Senators.
The Boston Braves purchased Lee King from Springfield (Eastern).
The St. Louis Browns traded Les Nunamaker to the Cleveland Indians for Josh Billings.
The New York Giants traded Walter Holke and Bill Rariden to the Cincinnati Reds for Hal Chase.
The Boston Braves traded Jimmy Smith and cash to the Cincinnati Reds for Walter Holke.
The St. Louis Browns purchased Wally Mayer from the Boston Red Sox for $5,000.
The Detroit Tigers released Harry Coveleski.
The Philadelphia Athletics traded Larry Gardner, Charlie Jamieson and Elmer Myers to the Cleveland Indians for Braggo Roth.
The Boston Braves purchased Ray Keating from the New York Yankees.
The Cincinnati Reds signed Claude Davidson as a free agent.
St Paul (American Association) purchased Ed Fitzpatrick from the Boston Braves.
The Cincinnati Reds selected Ray Fisher off waivers from the New York Yankees.
The Cincinnati Reds selected Slim Sallee off waivers from the New York Giants.
Memphis (Southern Association) purchased Rip Conway from the Boston Braves.
Salt Lake City (PCL) purchased Cliff Markle from the New York Yankees.
The Philadelphia Athletics purchased Snooks Dowd from the Detroit Tigers.