Top 25 MLB pitching seasons of all time

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Dec 9, 2013; Orlando, FL, USA; Roy Halladay announces his retirement at the MLB Winter Meetings at Walt Disney World Swan and Dolphin Resort. Halladay signed a one-day contract and retired with the Toronto Blue Jays. Mandatory Credit: David Manning-USA TODAY Sports /

16. Roy Halladay, 2010

The Numbers: 21-10, 2.44 ERA, led MLB in complete games, shutouts, innings, threw perfect game and postseason no-hitter, NL Cy Young

The Phillies gave up a big package to trade for Roy Halladay. Seeking an ace to lead the franchise to its third World Series in a row, Halladay nearly delivered. He threw the 20th perfect game in MLB history on May 29 against the Marlins.

With his perfect game under his belt, Halladay threw the second playoff no-hitter in MLB history. He blanked the Reds in Game 1 of the NLDS on 104 pitches. His only blemish was a walk to Jay Bruce.

Hallady was a workhorse for the Phillies in 2010. He led baseball in complete games for the fourth straight year and threw four shutouts. Halladay also led the NL in walk rate and strikeout-to-walk ratio.

Halladay’s peak ran from 2001 to 2011, and he was one of the most consistent pitchers in baseball. He had three 20-win seasons and led the league in complete games seven times. Over the course of his peak, Halladay went 175-78 with a 2.98 ERA. His peak was short, but incredible. Unfortunately, Halladay’s left arm was in tatters by his age-35 season. He was forced into an early and unceremonious retirement. His Hall of Fame case will be an interesting one for voters to consider.

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