The most runs scored in a MLB playoff game is 30 (both teams runs combined). Boston (23 runs) won against Cleveland (7 runs) in Game 4 of the 1999 American League (AM) division series.
This is also most runs scored by one team in a playoff game (23).
30, by the Rangers against the Orioles in 2007.
36, on 1897 June 29, by Chicago (NL) over Louisville.
in 1897 the Chicago Colts scored 36. The modern day record is 30 by the Texas Rangers in 2007 against the Orioles They won the game 30-3. Go RANGERS!!
Chicago 26 vs Philadelphia 23.
The most runs scored in a single game by a single player since 1950 was 7 done by Boston's Spike Owen in 1986.
The highest number of runs have been scored by Sachin tendulkar from India in both formats(ODI and Test) of the game.
I know Mike Schmidt alone had 4 home runs in one game
The most runs the Mets have scored in one game is 23 in a game against the Cubs on August 16, 1987.
At the start of the 2008 season, the Rays team record for most runs scored in a game is 19 against the Yankees in 2006 and the Blue Jays in 2004. The Rays record for most runs scored in an inning is 11 against the Mariners in 2000.
In the 2011 MLB season, the team that scored 13 or more runs in a game the most was the Boston Red Sox who did it 12 times. They scored 18 runs twice, 16 runs once, 15 runs twice, 14 runs 5 times, and 13 runs twice. The teams that scored exactly 13 runs in a game the most were the Texas Rangers and Toronto Blue Jays who each did it 4 times.
The most runs scored by the Padres in a single game was 20 against the Expos in May, 2001 and against the Marlins in July, 1996. http://sandiego.padres.mlb.com/sd/history/single_game_records.jsp
They scored 8 in the 2nd inning of some game. My source doesn't give the date, but that is the most they've scored in an inning this year.
Willie Mays scored the most runs before an all star game with a total of 24 runs. Willie Mays played baseball for New York Giants and the New York Mets.