the pitcher who started the game always gets the win
1962
yes, if he is the starting pitcher he has to go a minimum of 5 innings and his team has to be leading when he exits the game and never lose their lead and win the game. A pitcher can win in relief if he comes in when the game is tied or his team is losing, and his team rallies after he pitches and win the game, but they can't give up their lead after he pitches or he won't get the win someone else will get the win
Frank Viola
If pitchers' team is ahead when he leaves the game (all runners left on base that score, are charged to the pitcher that left them on base), he gets the win. The pitcher must pitch at least 5 innings in a game over 6 innings to get the win. If it is a tie game and the relieving pitcher's team wins, relieving pitcher gets the win. Otherwise he is charged with the loss. If the relieving pitcher's team is winning when he enters as a pitcher and then loses the game, the relieving pitcher is charged with a loss. If the relieving pitcher's team is winning when he enters the game as a pitcher and wins, the relieving pitcher is given a Save.
5 innings
Juan Marichal
A no decision is given to a starting pitcher who does not get credit for either a win or a loss for that game. A starting pitcher may come out for a relief pitcher with the score tied. Only the pitchers in the game when the final go-ahead run is scored get credit for a win or loss.
If the relief pitcher enters the game with his team behind, but leaves with his team leading, then he is eligible for the win. If he does so, but does not close out the game, then the subsequent relievers must maintain the lead in order for the pitcher to be credited with the win.
Cy Young
Andy Hawkins in Game 2.
J.C. Romero of the Philadelphia Phillies was the winning pitcher in the final game of the 2008 World Series.