In baseball, innings pitched (IP) are the number of innings a pitcher has completed, measured by the number of batters and baserunners that are taken out while the pitcher is on the pitching mound during a game. Three outs made are equal to one inning pitched. One out counts as one-third of an inning, and two outs count as two-thirds of an inning.
This is a list of the top 100 Major League Baseball pitchers who have accumulated the most innings pitched of all time.
Cy Young is the all-time leader in innings pitched with 7,356, and the only pitcher to throw more than 7,000 innings. Pud Galvin is the only other pitcher in MLB history to throw more than 6,000 innings.
Key Rank Rank amongst leaders in career innings pitched. A blank field indicates a tie.PlayerName of PlayerIPTotal career innings pitched. Current total in parentheses ()*Denotes elected to National Baseball Hall of Fame. Denotes active player
List Stats updated as of September 27, 2026.
RankPlayer (2026 IPs)IP1Cy Young*7,3562Pud Galvin*6,003.13Walter Johnson*5,914.14Phil Niekro*5,4045Nolan Ryan*5,3866Gaylord Perry*5,3507Don Sutton*5,282.18Warren Spahn*5,243.29Steve Carlton*5,217.210Grover Cleveland Alexander*5,19011Kid Nichols*5,067.112Tim Keefe*5,049.213Greg Maddux*5,008.114Bert Blyleven*4,97015Bobby Mathews4,95616Roger Clemens4,916.217Mickey Welch*4,80218Christy Mathewson*4,788.219Tom Seaver*4,78320Tommy John4,710.121Robin Roberts*4,688.222Early Wynn*4,56423John Clarkson*4,536.124Tony Mullane4,531.125Jim Kaat*4,530.126Charles Radbourn*4,527.127Ferguson Jenkins*4,500.228Eddie Plank*4,495.229Eppa Rixey*4,494.230Tom Glavine*4,413.131Jack Powell4,38932Red Ruffing*4,34433Gus Weyhing4,33734Jim McCormick4,275.235Frank Tanana4,188.136Burleigh Grimes*4,18037Ted Lyons*4,16138Randy Johnson*4,135.139Red Faber*4,086.240Jamie Moyer4,07441Dennis Martínez3,999.242Vic Willis*3,99643Jim Palmer*3,94844Lefty Grove*3,940.245Jack Quinn3,920.146Bob Gibson*3,884.147Sad Sam Jones3,88348Jerry Koosman3,839.149Bob Feller*3,82750Jack Morris*3,824 RankPlayer (2026 IPs)IP51Charlie Hough3,801.152Amos Rusie*3,778.253Waite Hoyt*3,762.154Jim Bunning*3,760.155Bobo Newsom3,759.156George Mullin3,686.257Jerry Reuss3,669.258Paul Derringer3,64559Mickey Lolich3,638.160Tommy Bond3,628.261Bob Friend3,61162Carl Hubbell*3,590.163Joe Niekro3,584.164CC Sabathia*3,577.165Justin Verlander3,576.266Herb Pennock*3,571.267Earl Whitehill3,564.268Mike Mussina*3,562.269Rick Reuschel3,548.170Will White3,542.271Adonis Terry3,514.172Juan Marichal*3,50773Jim Whitney3,496.174Luis Tiant3,486.175Wilbur Cooper3,48076John Smoltz*3,47377Bartolo Colón3,461.278Claude Osteen3,460.279Catfish Hunter*3,449.180Joe McGinnity*3,441.181David Wells3,43982Don Drysdale*3,43283Mel Harder3,426.184Charlie Buffinton3,40485Hooks Dauss3,390.286Zack Greinke3,389.187Clark Griffith*3,385.288Doyle Alexander3,367.289Chick Fraser3,36490Al Orth3,354.291Curt Simmons3,348.192Vida Blue3,343.193Andy Pettitte3,31694Rube Marquard*3,306.2Billy Pierce3,306.296Kenny Rogers3,302.297Dennis Eckersley*3,285.2Jim Perry3,285.299Mark Buehrle3,283.1100Larry Jackson3,262.2
See also
List of Major League Baseball career games started leaders List of Major League Baseball career wins leaders
References