It's called a "grand slam."
When ever the home run rule was made. A grand slam is just a home run with runners on every base.
Should a batter hit a grand slam home run to end a game (a so-called walk off grand slam), the batter would be credited with 4 RBIs, no matter what the score was at the time. When a home run ends a game, all runs count, unlike another base hit that scores the winning run or runs. In that case only enough runs that put the team ahead counts..not so for home runs.
its called a hitting for the cycle
Juan Uribe had 6 RBI's in one inning with the San Francisco Giants. He hit a two run home run, and a grand slam in the second inning of a game against the Chicago Cubs.
No.
A grand slam is 4 runs. 3 base runners and the hitter himself get to cross home plate.
Grand Slam
The player that hit the home run would be credited with two RBIs. A player that hits a home run gets credited with an RBI for every run that scores because of the home run. If no one is one base, it is one RBI. If one is on base, two RBIs. If two are on base, three RBIs. If the bases are loaded, four RBIs.
A grand slam is only possible when a player hits a home run while the bases are loaded (runners on 1st, 2nd, & 3rd base at the same time). This results in 4 runs for the batter's team.
figure it out
It depends on who the batter is, what stadium he's playing in, and whether he is at home or on the road.