It depends on whether you consider "total runs scored" as either including or not including RBI's. The record for total runs scored (2 runs plus 6 RBI's) was set by Fernando Tatis on April 23, 1999 after two grand slams in one inning. There is a three way record for most runs scored by a single individual in one inning: 3 runs for Sammy White on June 18, 1953 and 3 runs for both Tom Burns and Ned Williamson (both in the same game for the Chicago Colts) on September 6, 1883.
Brian Lara has scored 400* in an inning.
Once the Red Sox scored 17 points in one inning.
The most runs scored in a single inning by the Baltimore Orioles was 12 against the Tampa Bay Devil Rays on April 11, 2002.
Fernando Tatis hit 2 grand slams in the same inning for the St. Louis Cardinals so 8 is the most RBIs in one inning by a single player. At least as of 10/12/10
The most runs scored in an inning by both teams is 19 in the 8th inning of a game between Cleveland and Boston in 1977. Cleveland scored 13 runs and Boston scored 6. The most runs scored by a single team in aninning is 18 by Chicago against Detroit in the 7th inning of a game played in 1883.
The former NFL player with the most points scored in a single season is LaDainian Tomlinson. He scored 186 points in 2006 with the San Diego Chargers.
I believe it's 14. They scored 14 runs in the first inning against houston. I believe in 1989?
most goals for a club scored pele for santos 1033
Just Fontaine is the player who has scored the most goals in a single World Cup tournament. He scored 13 goals in just six matches.
In MLB history, the most runs scored by a single team in the ninth inning is 14 by the Baltimore Orioles against the Boston Beaneaters in 1894. The most runs scored by both teams in the ninth inning is 17 by the New York Giants and Boston Braves in 1912. The Giants scored 7 runs and the Braves scored 10 runs.
12 runs in the 7th inning against the Chicago Cubs on 7/21/2012
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 Mets scored 11 runs in the sixth inning on July 16, 2006 in their 13-7 win against the Cubs
Wilt Chamberlain scored 100 points in a single NBA game and the second most in the NBA was scored by Kobe Bryant as he scored 81 in a single game.
13 runs in the 4th inning April 13, 2003 at Cincinnati Reds.
The most at bats in one inning is 3. This means that a single player would have made it to the plate to bat three times in a single inning.
I think it was 35 in the 1930's