IP stands for Innings Pitched. It is a pitching statistics that records the amount of innings the pitcher pitched.

It can be divided into thirds by the outs that were recorded while the pitcher was still on the mound.

For example: Its the 5th inning and there are 2 outs. The pitcher needs to be taken out of the game and is replaced with another pitcher. The number of innings pitched for this game would be 4 2/3. The relief pitcher would then pitch 2 1/3. This would add up to the complete 7 inning game.

In 2007 C.C. Sabathia led the Majors in Innings pitched with 241.0

Click on the 'Scoreless Innings Leaders' link on this page to see a list of MLB career leaders of scoreless innings pitched.

Roy Halladay (PHI) started and pitched 2 scoreless innings.

Cliff Lee (PHI) then pitched 1.2 innings and gave up 1 run.

Tyler Clippard (WAS) pitched .1 innings and did not give up a run.

Clayton Kershaw (LAD) pitched a scoreless inning.

Jair Jurrjens (ATL) pitched 1.2 innings of scoreless ball.

Craig Kimbrel (ATL) completed .1 innings and did not give up a run.

Jonny Venters (ATL) pitched .2 innings of scoreless ball.

Heath Bell (SD) then completed .1 innings of scoreless ball.

Joel Hanrahan (PIT) pitched .2 innings in the 9th and did not give up a run.

Brian Wilson (SF) finished off the AL with .1 innings of scoreless ball.

The Phillies played the Atlanta Braves at Veterans Stadium on September 27, 2003 with the Phillies winning, 7-6, in 10 innings. The starter for the Phils was Amaury Telemaco who pitched the first two innings. Brandon Duckworth pitched innings 3-5, Ryan Madson pitched innings 6-7, Geoff Geary pitched innings 8-9, and Rheal Cormier pitched the 10th inning and was credited with the win.