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On This Day in Baseball History: August 12
Sources Lahman People + MLB StatsAPI73 debuts105 transactions
Every major-league debut, final game, transaction, birth and death recorded for August 12, newest first. Player names link to career pages where one exists, and each season links onward to that year’s awards and postseason archives.
Debuts73
Final games55
Transactions105
Born61
Died26
| Year | Move | From | To |
|---|---|---|---|
| 2026 | Boston Red Sox traded CF Harold Rivas to Baltimore Orioles. Player to be named later from the 8/3 Adley Rutschman trade. 2026 transaction archive |  |  |
| 2026 | Boston Red Sox signed free agent RHP Morgan McSweeney to a minor league contract. 2026 transaction archive | - | |
| 2026 | Seattle Mariners signed free agent RHP Scott Effross to a minor league contract. 2026 transaction archive | - |  |
| 2026 | Toronto Blue Jays signed free agent OF David Calabrese to a minor league contract. 2026 transaction archive | - |  |
| 2026 | Pittsburgh Pirates signed free agent C Jack Scanlon to a minor league contract. 2026 transaction archive | - |  |
| 2025 | New York Yankees signed free agent C Rob Brantly to a minor league contract. 2025 transaction archive | - |  |
| 2025 | St. Louis Cardinals signed free agent OF Andrew Sojka to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Colorado Rockies signed free agent RHP Kyle Brnovich to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Milwaukee Brewers signed free agent RHP Julian Merryweather to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Arizona Diamondbacks signed free agent 1B Matt Mervis to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Arizona Diamondbacks released RHP Jeff Brigham. 2025 transaction archive | - | |
| 2025 | Cincinnati Reds signed free agent RHP Griffin Green to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Cincinnati Reds signed free agent RHP Connor O'Hara to a minor league contract. 2025 transaction archive | - | |
| 2025 | Texas Rangers signed free agent RHP Manuel Gomez to a minor league contract. 2025 transaction archive | - |  |
| 2025 | Texas Rangers signed free agent RHP Edgar Liriano to a minor league contract. 2025 transaction archive | - | |
| 2025 | Texas Rangers signed free agent RHP Dariel Pena to a minor league contract. 2025 transaction archive | - | |
| 2024 | Los Angeles Angels released RHP Zach Plesac. 2024 transaction archive | - |  |
| 2024 | Atlanta Braves signed free agent RHP Euder Gonzalez to a minor league contract. 2024 transaction archive | - |  |
| 2023 | Toronto Blue Jays signed free agent RHP Matt Wisler to a minor league contract. 2023 transaction archive | - | |
| 2023 | Seattle Mariners signed free agent RHP Alex Valverde to a minor league contract. 2023 transaction archive | - | |
| 2022 | St. Louis Cardinals released LHP T.J. McFarland. 2022 transaction archive | - | |
| 2022 | Cincinnati Reds signed free agent RHP Jake McMahill to a minor league contract. 2022 transaction archive | - | |
| 2022 | Toronto Blue Jays signed free agent RHP Lluveres Severino to a minor league contract. 2022 transaction archive | - | |
| 2021 | Chicago Cubs released RHP Jake Arrieta. 2021 transaction archive | - |  |
| 2021 | Cincinnati Reds signed OF Justice Thompson. 2021 transaction archive | - | |
| 2021 | Cincinnati Reds signed SS Jose Torres. 2021 transaction archive | - | |
| 2021 | San Diego Padres signed RHP Ryan Bergert. 2021 transaction archive | - |  |
| 2021 | San Diego Padres signed free agent LHP Matt Sparling to a minor league contract. 2021 transaction archive | - | |
| 2020 | Atlanta Braves traded 1B Yonder Alonso to San Diego Padres for cash. 2020 transaction archive | | |
| 2020 | Chicago Cubs signed free agent 2B Matt Burch to a minor league contract. 2020 transaction archive | - | |
| 2020 | Philadelphia Phillies signed free agent LHP Corey Phelan to a minor league contract. 2020 transaction archive | - |  |
| 2019 | Seattle Mariners signed free agent RHP Brendan McGuigan to a minor league contract. 2019 transaction archive | - | |
| 2019 | Washington Nationals signed free agent RHP Greg Holland to a minor league contract. 2019 transaction archive | - |  |
| 2019 | New York Mets signed free agent P Yeily Encarnacion to a minor league contract. 2019 transaction archive | - |  |
| 2019 | Milwaukee Brewers signed free agent RHP Stanley Encarnacion to a minor league contract. 2019 transaction archive | - | |
| 2019 | Milwaukee Brewers signed free agent SS Arnys Rodriguez to a minor league contract. 2019 transaction archive | - | |
| 2019 | Pittsburgh Pirates signed free agent SS Isaias Dipre to a minor league contract. 2019 transaction archive | - | |
| 2018 | San Francisco Giants signed free agent 1B Brock Stassi to a minor league contract. 2018 transaction archive | - |  |
| 2018 | Pittsburgh Pirates traded CF Christopher Bostick to Miami Marlins for cash. 2018 transaction archive | |  |
| 2018 | Washington Nationals signed free agent OF Oliver Francois to a minor league contract. 2018 transaction archive | - | |
| 2017 | Kansas City Royals signed free agent RHP Jackson Sigman to a minor league contract. 2017 transaction archive | - |  |
| 2017 | Toronto Blue Jays released 3B Chris Coghlan. 2017 transaction archive | - | |
| 2017 | Colorado Rockies signed free agent 1B Ryan Howard to a minor league contract. 2017 transaction archive | - | |
| 2017 | Seattle Mariners signed free agent RHP Jeanmar Gomez. 2017 transaction archive | - | |
| 2017 | New York Mets traded 2B Neil Walker and cash to Milwaukee Brewers for Player To Be Named Later. 2017 transaction archive | | |
| 2017 | Cleveland Indians signed free agent RHP Miguel Vinicio to a minor league contract. 2017 transaction archive | - |  |
| 2017 | Cleveland Indians signed free agent SS Moises De La Cruz to a minor league contract. 2017 transaction archive | - | |
| 2016 | Atlanta Braves signed free agent RHP Jimmy Moran to a minor league contract. 2016 transaction archive | - | |
| 2016 | Miami Marlins signed free agent RHP Dailyn De Oleo to a minor league contract. 2016 transaction archive | - | |
| 2016 | San Francisco Giants signed free agent RHP Connor Overton to a minor league contract. 2016 transaction archive | - | |
| 2016 | Los Angeles Dodgers signed free agent C Peter Summerville to a minor league contract. 2016 transaction archive | - |  |
| 2016 | Detroit Tigers signed free agent RHP Maximo Cortes to a minor league contract. 2016 transaction archive | - |  |
| 2016 | Tampa Bay Rays signed free agent OF Aldenis Sanchez to a minor league contract. 2016 transaction archive | - |  |
| 2016 | Colorado Rockies signed free agent LHP Helcris Olivarez to a minor league contract. 2016 transaction archive | - | |
| 2016 | Colorado Rockies signed free agent SS Adonis Santos to a minor league contract. 2016 transaction archive | - | |
| 2016 | Philadelphia Phillies signed free agent RHP Jeison Blanco to a minor league contract. 2016 transaction archive | - | |
| 2015 | Atlanta Braves signed free agent OF Carlos Borrego to a minor league contract. 2015 transaction archive | - | |
| 2015 | Atlanta Braves signed free agent C Brian Figueroa to a minor league contract. 2015 transaction archive | - | |
| 2015 | Atlanta Braves signed free agent RHP Willians Vasquez to a minor league contract. 2015 transaction archive | - | |
| 2015 | Kansas City Royals signed free agent RHP Yerelmy Garcia to a minor league contract. 2015 transaction archive | - | |
| 2014 | Detroit Tigers signed free agent RHP Shawn Hill to a minor league contract. 2014 transaction archive | - | |
| 2014 | Colorado Rockies signed free agent RHP Josh Roenicke to a minor league contract. 2014 transaction archive | - | |
| 2014 | Chicago White Sox signed free agent OF C.J. Beatty to a minor league contract. 2014 transaction archive | - |  |
| 2014 | Los Angeles Angels signed free agent LHP Danny Miranda to a minor league contract. 2014 transaction archive | - | |
| 2014 | San Diego Padres signed 3B Niko Gallego. 2014 transaction archive | - | |
| 2014 | Atlanta Braves signed free agent 1B Erik Castro to a minor league contract. 2014 transaction archive | - | |
| 2014 | Philadelphia Phillies signed free agent RHP Jason Zgardowski to a minor league contract. 2014 transaction archive | - | |
| 2014 | Detroit Tigers signed free agent RHP Nate Carter to a minor league contract. 2014 transaction archive | - | |
| 2014 | Detroit Tigers signed free agent RHP Alex Lakatos to a minor league contract. 2014 transaction archive | - | |
| 2014 | Detroit Tigers signed free agent RHP Jordan Smith to a minor league contract. 2014 transaction archive | - | |
| 2014 | Philadelphia Phillies signed free agent LHP Josh Taylor to a minor league contract. 2014 transaction archive | - | |
| 2014 | Atlanta Braves signed free agent OF Stephen Gaylor to a minor league contract. 2014 transaction archive | - | |
| 2014 | Washington Nationals signed free agent 3B Omar Meregildo to a minor league contract. 2014 transaction archive | - | |
| 2013 | Minnesota Twins traded 2B Jamey Carroll to Kansas City Royals. 2013 transaction archive |  | |
| 2013 | Cleveland Indians released 3B Mark Reynolds. 2013 transaction archive | - | |
| 2013 | Oakland Athletics signed free agent RHP Drew Carpenter to a minor league contract. 2013 transaction archive | - |  |
| 2013 | Pittsburgh Pirates signed free agent C Kelly Shoppach to a minor league contract. 2013 transaction archive | - | |
| 2013 | Philadelphia Phillies released RF Laynce Nix. 2013 transaction archive | - | |
| 2013 | Cincinnati Reds signed free agent LHP Zach Duke to a minor league contract. 2013 transaction archive | - | |
| 2013 | Philadelphia Phillies signed free agent RHP Jordan Elliott to a minor league contract. 2013 transaction archive | - | |
| 2013 | Minnesota Twins signed free agent LHP Cameron Booser to a minor league contract. 2013 transaction archive | - | |
| 2013 | Washington Nationals signed C Geoffrey Perrott. 2013 transaction archive | - | |
| 2013 | Cincinnati Reds signed free agent CF Reydel Medina to a minor league contract. 2013 transaction archive | - | |
| 2013 | Cincinnati Reds signed free agent SS Franklin Vargas to a minor league contract. 2013 transaction archive | - | |
| 2013 | Washington Nationals released SS Leudys Baez. 2013 transaction archive | - | |
| 2012 | Cleveland Indians released 2B Jose Lopez. 2012 transaction archive | - | |
| 2012 | Los Angeles Angels signed free agent RHP Ramon Pena to a minor league contract. 2012 transaction archive | - | |
| 2012 | Arizona Diamondbacks signed free agent RHP Brett Tomko to a minor league contract. 2012 transaction archive | - | |
| 2011 | Toronto Blue Jays signed OF Jake Anderson. 2011 transaction archive | - | |
| 2011 | Toronto Blue Jays signed RHP Brady Dragmire. 2011 transaction archive | - | |
| 2011 | Toronto Blue Jays signed OF Derrick Loveless. 2011 transaction archive | - | |
| 2011 | Oakland Athletics signed 3B B.A. Vollmuth. 2011 transaction archive | - | |
| 2011 | Los Angeles Dodgers signed LHP Chris Reed. 2011 transaction archive | - | |
| 2011 | St. Louis Cardinals signed free agent LHP Arthur Rhodes. 2011 transaction archive | - | |
| 2011 | Philadelphia Phillies signed free agent OF Jack Cust to a minor league contract. 2011 transaction archive | - | |
| 2011 | St. Louis Cardinals signed RHP Chris Costantino. 2011 transaction archive | - | |
| 2011 | Cleveland Indians signed RHP Cody Anderson. 2011 transaction archive | - | |
| 2011 | Boston Red Sox signed RHP T.J. Hose. 2011 transaction archive | - | |
| 2011 | Philadelphia Phillies signed OF Johnathan Knight. 2011 transaction archive | - | |
| 2011 | Chicago Cubs signed SS Danny Lockhart. 2011 transaction archive | - | |
| 2011 | Chicago Cubs signed 1B Rock Shoulders. 2011 transaction archive | - | |
| 2011 | Cleveland Indians signed LHP Shawn Morimando. 2011 transaction archive | - | |
| 2011 | Kansas City Royals signed free agent C Roberto Tovar to a minor league contract. 2011 transaction archive | - | |
| 2011 | Cincinnati Reds signed free agent OF Yordanys Perez to a minor league contract. 2011 transaction archive | - | |
| 2011 | Toronto Blue Jays signed RHP Tom Robson. 2011 transaction archive | - | |
| Year | Player |
|---|---|
| 2001 | Kyle Harrison |
| 1999 | Joe Perez |
| 1998 | Joan Adon |
| 1996 | Julio Urias |
| 1994 | Ian Happ |
| 1993 | Hunter Wood |
| 1991 | Chris Owings |
| 1990 | Ryan Weber |
| 1989 | Kyle Lobstein |
| 1988 | Jake Dunning |
| 1988 | Jhan Marinez |
| 1988 | Jose Tabata |
| 1985 | Jhonatan Solano |
| 1985 | Zack Cozart |
| 1979 | D. J. Houlton |
| 1978 | Michel Hernandez |
| 1976 | Ismael Villegas |
| 1976 | Lew Ford |
| 1975 | Luis Ordaz |
| 1974 | Matt Clement |
| 1974 | Shane Monahan |
| 1973 | Gene Stechschulte |
| 1968 | Reggie Harris |
| 1968 | Tony Longmire |
| 1966 | Dean Hartgraves |
| 1965 | Barry Manuel |
| 1965 | Joe Millette |
| 1963 | Kent Anderson |
| 1962 | Dave Pavlas |
| 1962 | Urbano Lugo |
| 1958 | Rusty McNealy |
| 1956 | Bobby Bonner |
| 1936 | Ellis Burton |
| 1936 | Tom McAvoy |
| 1935 | Ken McBride |
| 1928 | Bob Buhl |
| 1927 | Charlie White |
| 1921 | Lefty Wallace |
| 1919 | Fred Hutchinson |
| 1918 | Charlie Gassaway |
| 1912 | Harlond Clift |
| 1909 | Skinny Graham |
| 1905 | Don Hurst |
| 1900 | Spence Harris |
| 1899 | Bill Black |
| 1894 | Paul Carpenter |
| 1893 | John Michaelson |
| 1892 | Ray Schalk |
| 1891 | Bill Lathrop |
| 1889 | Ted Goulait |
| 1887 | Erv Lange |
| 1887 | Marc Hall |
| 1880 | Christy Mathewson |
| 1879 | Wyatt Lee |
| 1871 | Andy Dunning |
| 1870 | Ed Scott |
| 1868 | Charlie Bell |
| 1868 | Jerry Harrington |
| 1867 | Dan Lally |
| 1866 | Tom Dowse |
| 1848 | Pony Sager |
| Year | Player | Age |
|---|---|---|
| 2025 | Bill Hepler | 79 |
| 2017 | Paul Casanova | 75 |
| 2014 | Gordon MacKenzie | 77 |
| 2011 | Ernie Johnson | 87 |
| 2008 | George Gick | 92 |
| 2006 | Junior Wooten | 82 |
| 2002 | Enos Slaughter | 86 |
| 1991 | William Starr | 80 |
| 1990 | Fay Thomas | 86 |
| 1981 | Tony Lyons | 90 |
| 1975 | Lew Riggs | 65 |
| 1971 | Shorty Dee | 81 |
| 1963 | Dick Braggins | 85 |
| 1960 | Leo Murphy | 71 |
| 1959 | Ed Goebel | 60 |
| 1959 | Johnny Burnett | 54 |
| 1959 | Mike O'Neill | 81 |
| 1956 | Warren Miller | 71 |
| 1951 | Paul McSweeney | 84 |
| 1948 | Billy Graulich | 80 |
| 1948 | Fred Odwell | 75 |
| 1939 | Jack Darragh | 73 |
| 1934 | Ed Andrews | 75 |
| 1932 | Jake Boyd | 58 |
| 1920 | Elmer Horton | 53 |
| 1888 | Favel Wordsworth | - |
About these records
Every dated event on this page is read directly from the source tables: debuts, final games, birth dates and death dates from the SABR / Sean Lahman baseball database (2025 edition, People table), used under Creative Commons Attribution-ShareAlike 3.0, and transactions from the official MLB StatsAPI transactions archive captured through 2026-10-22. Nothing is inferred: a record appears here only when the source carries a complete month and day for August 12.
Honesty notes: the staged People table records complete dates or none, and no partial dates had to be excluded. Missing dates are not unknowns everywhere: an empty death date means the player is living (10,918 rows), an empty final-game date means no end date is recorded (1,932 rows), and 398 rows have no birth date. Early records reach back to the 1870s; 19th-century dates reflect the best retrospective research in the source and are shown exactly as recorded. Award winners and postseason series are staged by season with no calendar day in the source, so they are linked from each season above instead of being dated here. The transaction window covers 2011 to 2026 only. Player names link to career pages for every player who has one.
See the sources page for every dataset behind Legends Deck.