Click on the 'Scoreless Innings Leaders' link on this page to see a list of MLB career leaders of scoreless innings pitched.
For the stat "Strikeouts per 9 Innings" for pitchers that have pitched at least 1000 innings the all time leader, through games played on September 22, 2009 is Randy Johnson with 10.61 strikeouts per 9 innings pitched (4872 strikeouts in 4132 1/3 innings pitched).Second all time is Kerry Wood with 10.39 strikeouts per 9 innings pitched (1466 strikeouts in 1270 1/3 innings pitched) and third is Pedro Martinez with 10.05 strikeouts per 9 innings pitched (3152 strikeouts in 2823 1/3 innings pitched).
Take how many earn runs they have multiply it by 9 then divide by how many innings they've pitched
Pettitte, Glavine and Smoltz, in that order. Clemens and Maddux are right behind them.
One--Ken Johnson of the Houston Colt .45s. Four other pitchers have pitched eight innings without a hit for the visiting team and lost, but because the home team never batted in the ninth inning these don't officially count as no-hitters.
WHIP is a pitcher's statistic that means the pitchers walks (W), plus hits (H) allowed per innings pitched (IP).
ERA is based on 9 innings pitched. When you see a pitcher with a 4.94 ERA that means for every 9 innings pitched, he gives up 4.94 earned runs. Example: A pitcher has pitched 150 innings and given up 60 earned runs. 1) Divide the number of earned runs (60) by the number of innings pitched (150) =0.40. 2) Then take that number (0.4) and multiply it by 9 =3.60. A pitcher who has pitched 150 innings and given up 60 earned runs has an ERA of 3.60.
Walter Johnson pitched 5,914 and a third innings for the Washington Senators from 1907 to 1927, with 417 wins, which is second only to Cy Young's 511.
I believe that almost every pitcher who has pitched for more than 30 innings has struck out someone in three pitches. It isn't very hard for a pitcher to strike someone out in three pitches, especially if they have pitched for 30 innings.
In MLB, the career leader for innings pitched is Cy Young who pitched 7354 innings in a career that spanned 1890-1911. As far as the 'modern' innings pitched leader, that would be Phil Niekro who pitched 5404 innings in a career that spanned 1964-1987.
Supposing that all four runs were earned runs and it is a nine inning game, the ERA is 4.5... Earned runs divided by innings pitched multiplied by the the total innings of a standard game (4/8 * 9 = 4.5)
In MLB, for pitchers that threw at least 162 innings in a season, that would be Dutch Leonard who had an ERA of 0.96 for the Boston Red Sox in the 1914 season. Leonard pitched 224 2/3 innings and gave up 24 earned runs. For pitchers that threw at least 100 innings in a season it is Tim Keefe who had an ERA of 0.86 for the Troy Trojans in 1880. Keefe pitched 105 innings and gave up 10 earned runs.