The winning pitcher is determined based on the score of the game such as for example if Greinke started a game for the Diamondbacks and they're winning after 5 innings he would be eligible for a win however if he were to leave the game before 5 innings are completed then it would be up to the home team's official scorer to make that call based on who he or she believed gave the best performance out of the bullpen.
His team has to record 27 outs while he was the pitcher of record.
The winning pitcher is the pitcher of record when the winning run is scored.
Denny McClain Detroit Tigers 1968 31 wins
The MLB pitcher that was nicknamed the "Rocket" was Roger Clemens.
The average salary for an MLB pitcher is $650,000. The highest paid pitcher is CC Sabathia.
The heaviest pitcher in MLB History is definitely Nolan Ryan.
At the end of the game, the official scorer determines which run scored by the winning team was the one that put them ahead for good. Whichever pitcher allowed the baserunner to reach who scored this run, is the loser.
J.C. Romero was the winning pitcher in game 5 of the 2008 World Series.
Pitch count has nothing to do with eligibility to be the winning pitcher. In a scheduled 9-inning game, the starting pitcher must pitch 5 complete innings to be eligible to be the winning pitcher. Relief pitchers must be the pitcher of record when the winning team takes the lead, and never relinquishes the lead, to be the winning pitcher.