Question: When is the all-star game of the league whose member played in the most championship series which proceed the MVP award?

Knowledge 1: Major League Baseball All-Star Game Most Valuable Player Award
As of 2018, NL players have won the award 27 times (including one award shared by two players), and American League (AL) players have won 30 times. Baltimore Orioles players have won the most awards for a single franchise (with six); players from the Cincinnati Reds, Los Angeles Dodgers and San Francisco Giants are tied for the most in the NL with five each. Five players have won the award twice: Willie Mays (1963, 1968), Steve Garvey (1974, 1978), Gary Carter (1981, 1984), Cal Ripken, Jr. (1991, 2001), and Mike Trout (2014, 2015). The award has been shared by multiple players once; Bill Madlock and Jon Matlack shared the award in 1975. Two players have won the award for a game in which their league lost: Brooks Robinson in 1966 and Carl Yastrzemski in 1970. One pair of awardees were father and son (Ken Griffey Sr. and Ken Griffey Jr.), and another were brothers (Roberto Alomar and Sandy Alomar, Jr.). Mike Trout of the Los Angeles Angels of Anaheim became the first player ever to win the MVP award in back - to - back years in the 86 - year history of the MLB All - Star Game when he accomplished the feat in both 2014 and 2015. Alex Bregman of the Houston Astros is the most recent MLB All - Star Game MVP, winning the award in 2018. Only six players have won the MVP award in the only All - Star Game in which they appeared; LaMarr Hoyt, Bo Jackson, J.D. Drew, Melky Cabrera, Eric Hosmer, and Alex Bregman. [SEP] Knowledge 2: World Series
In the American League, the New York Yankees have played in 40 World Series and won 27, the Philadelphia / Kansas City / Oakland Athletics have played in 14 and won 9, and the Boston Red Sox have played in 12 and won 8, including the first World Series. In the National League, the St. Louis Cardinals have appeared in 19 and won 11, the New York / San Francisco Giants have played in 20 and won 8, the Brooklyn / Los Angeles Dodgers have appeared in 19 and won 6, and the Cincinnati Reds have appeared in 9 and won 5. [SEP] Knowledge 3: New York Yankees
The New York Yankees are an American professional baseball team based in the New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. They are one of two major league clubs based in New York City; the other club is the National League (NL)'s New York Mets. In the season, the club began play in the AL as the Baltimore Orioles (no relation to the modern Baltimore Orioles). Frank Farrell and Bill Devery purchased the franchise that had ceased operations and moved it to New York City, renaming the club the New York Highlanders. The Highlanders were officially renamed the Yankees in . [SEP] Knowledge 4: Exhibition game
It also used to be commonplace to have a team play an exhibition against Minor League affiliates during the regular season, but worries of injuries to players, along with travel issues, have made this very rare. Exhibitions between inter-city teams in different leagues, like Chicago's Crosstown Classic and New York's Subway Series which used to be played solely as exhibitions for bragging rights are now blended into interleague play. The annual MLB All-Star Game, played in July between players from AL teams and players from NL teams, was long considered an exhibition match, but as of 2003 this status was questioned because the league whose team wins the All-Star game has been awarded home field advantage for the upcoming World Series.
Knowledge 1: Major League Baseball All-Star Game Most Valuable Player Award
As of 2018, NL players have won the award 27 times (including one award shared by two players), and American League (AL) players have won 30 times. Baltimore Orioles players have won the most awards for a single franchise (with six); players from the Cincinnati Reds, Los Angeles Dodgers and San Francisco Giants are tied for the most in the NL with five each. Five players have won the award twice: Willie Mays (1963, 1968), Steve Garvey (1974, 1978), Gary Carter (1981, 1984), Cal Ripken, Jr. (1991, 2001), and Mike Trout (2014, 2015). The award has been shared by multiple players once; Bill Madlock and Jon Matlack shared the award in 1975. Two players have won the award for a game in which their league lost: Brooks Robinson in 1966 and Carl Yastrzemski in 1970. One pair of awardees were father and son (Ken Griffey Sr. and Ken Griffey Jr.), and another were brothers (Roberto Alomar and Sandy Alomar, Jr.). Mike Trout of the Los Angeles Angels of Anaheim became the first player ever to win the MVP award in back - to - back years in the 86 - year history of the MLB All - Star Game when he accomplished the feat in both 2014 and 2015. Alex Bregman of the Houston Astros is the most recent MLB All - Star Game MVP, winning the award in 2018. Only six players have won the MVP award in the only All - Star Game in which they appeared; LaMarr Hoyt, Bo Jackson, J.D. Drew, Melky Cabrera, Eric Hosmer, and Alex Bregman. [SEP] Knowledge 2: World Series
In the American League, the New York Yankees have played in 40 World Series and won 27, the Philadelphia / Kansas City / Oakland Athletics have played in 14 and won 9, and the Boston Red Sox have played in 12 and won 8, including the first World Series. In the National League, the St. Louis Cardinals have appeared in 19 and won 11, the New York / San Francisco Giants have played in 20 and won 8, the Brooklyn / Los Angeles Dodgers have appeared in 19 and won 6, and the Cincinnati Reds have appeared in 9 and won 5. [SEP] Knowledge 3: Exhibition game
It also used to be commonplace to have a team play an exhibition against Minor League affiliates during the regular season, but worries of injuries to players, along with travel issues, have made this very rare. Exhibitions between inter-city teams in different leagues, like Chicago's Crosstown Classic and New York's Subway Series which used to be played solely as exhibitions for bragging rights are now blended into interleague play. The annual MLB All-Star Game, played in July between players from AL teams and players from NL teams, was long considered an exhibition match, but as of 2003 this status was questioned because the league whose team wins the All-Star game has been awarded home field advantage for the upcoming World Series. [SEP] Knowledge 4: MLB Tonight
MLB Tonight is the signature program that airs on MLB Network and is simulcast on MLB Network Radio. The show offers complete coverage of all Major League Baseball games from 6pm ET till 1am ET during the regular season, and gives news from all 30 MLB teams during the offseason. It is taped live in Studio 3 of the MLB Network facility in Secaucus, New Jersey, but also features segments taped in Studio 42. The program aired from the beginning of Spring Training to the end of the World Series and was replaced in the offseason by "Hot Stove", until it started to air in the offseason, and "Hot Stove" became MLB Network's weekday morning show. The show won the Sports Emmy Award for best Daily Outstanding Studio Show for 2010, 2011, 2012, 2014 and 2015.
Knowledge 1: Major League Baseball All-Star Game Most Valuable Player Award
As of 2018, NL players have won the award 27 times (including one award shared by two players), and American League (AL) players have won 30 times. Baltimore Orioles players have won the most awards for a single franchise (with six); players from the Cincinnati Reds, Los Angeles Dodgers and San Francisco Giants are tied for the most in the NL with five each. Five players have won the award twice: Willie Mays (1963, 1968), Steve Garvey (1974, 1978), Gary Carter (1981, 1984), Cal Ripken, Jr. (1991, 2001), and Mike Trout (2014, 2015). The award has been shared by multiple players once; Bill Madlock and Jon Matlack shared the award in 1975. Two players have won the award for a game in which their league lost: Brooks Robinson in 1966 and Carl Yastrzemski in 1970. One pair of awardees were father and son (Ken Griffey Sr. and Ken Griffey Jr.), and another were brothers (Roberto Alomar and Sandy Alomar, Jr.). Mike Trout of the Los Angeles Angels of Anaheim became the first player ever to win the MVP award in back - to - back years in the 86 - year history of the MLB All - Star Game when he accomplished the feat in both 2014 and 2015. Alex Bregman of the Houston Astros is the most recent MLB All - Star Game MVP, winning the award in 2018. Only six players have won the MVP award in the only All - Star Game in which they appeared; LaMarr Hoyt, Bo Jackson, J.D. Drew, Melky Cabrera, Eric Hosmer, and Alex Bregman. [SEP] Knowledge 2: World Series
In the American League, the New York Yankees have played in 40 World Series and won 27, the Philadelphia / Kansas City / Oakland Athletics have played in 14 and won 9, and the Boston Red Sox have played in 12 and won 8, including the first World Series. In the National League, the St. Louis Cardinals have appeared in 19 and won 11, the New York / San Francisco Giants have played in 20 and won 8, the Brooklyn / Los Angeles Dodgers have appeared in 19 and won 6, and the Cincinnati Reds have appeared in 9 and won 5. [SEP] Knowledge 3: New York Yankees
The New York Yankees are an American professional baseball team based in the New York City borough of the Bronx. The Yankees compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. They are one of two major league clubs based in New York City; the other club is the National League (NL)'s New York Mets. In the season, the club began play in the AL as the Baltimore Orioles (no relation to the modern Baltimore Orioles). Frank Farrell and Bill Devery purchased the franchise that had ceased operations and moved it to New York City, renaming the club the New York Highlanders. The Highlanders were officially renamed the Yankees in . [SEP] Knowledge 4: MLB Tonight
MLB Tonight is the signature program that airs on MLB Network and is simulcast on MLB Network Radio. The show offers complete coverage of all Major League Baseball games from 6pm ET till 1am ET during the regular season, and gives news from all 30 MLB teams during the offseason. It is taped live in Studio 3 of the MLB Network facility in Secaucus, New Jersey, but also features segments taped in Studio 42. The program aired from the beginning of Spring Training to the end of the World Series and was replaced in the offseason by "Hot Stove", until it started to air in the offseason, and "Hot Stove" became MLB Network's weekday morning show. The show won the Sports Emmy Award for best Daily Outstanding Studio Show for 2010, 2011, 2012, 2014 and 2015.

Answer: July 11, 2017