:Fred Koster

{{short description|American baseball player (1905-1979)}}

{{Use mdy dates|date=July 2024}}

{{Infobox baseball biography

|name=Fred Koster

|image=

|position=Outfielder

|bats=Left

|throws=Left

|birth_date={{birth date|1905|12|21}}

|birth_place=Louisville, Kentucky

|death_date={{death date and age|1979|4|24|1905|12|21}}

|death_place=St. Matthews, Kentucky

|debutleague = MLB

|debutdate=April 27

|debutyear={{baseball year|1931}}

|debutteam=Philadelphia Phillies

|finalleague = MLB

|finaldate=September 27

|finalyear={{baseball year|1931}}

|finalteam=Philadelphia Phillies

|statleague = MLB

|stat1label=Batting average

|stat1value=.225

|stat2label=Home runs

|stat2value=0

|stat3label=Runs batted in

|stat3value=8

|teams=

• Philadelphia Phillies (1931)

}}

Frederick Charles Koster ["Fritz"] (December 21, 1905 – April 24, 1979) was an outfielder in Major League Baseball who played for the Philadelphia Phillies during the {{baseball year|1931}} season.

Koster attended the University of Louisville, where he played college baseball for the Cardinals from 1926 to 1928.{{cite web|title=University of Louisville Baseball Players Who Made It to the Major Leagues|url=http://www.baseball-almanac.com/college/university_of_louisville_baseball_players.shtml|work=Baseball-Almanac.com|accessdate=May 27, 2013|archiveurl=https://web.archive.org/web/20070509233605/http://www.baseball-almanac.com/college/university_of_louisville_baseball_players.shtml|archivedate=May 9, 2007|url-status=dead}}