Korecky graduated from Saline High School in 1998, where he led the Hornets to the Division 1 state championship baseball game. During his senior season, he led the team with an 11-1 record on the mound with a 1.43 ERA and 118 strikeouts in 78 innings pitched. Korecky also had a.516 batting average striking out only once in 155 at bats. Also in Korecky's senior season, he set the Michigan High School Baseball record for most hits in a season with 80.
Korecky was drafted by the Philadelphia Phillies in the 19th round in the 2002 Major League Baseball Draft. In the first professional season of his career in, Korecky played in Single-A for the Batavia Muckdogs and the Lakewood BlueClaws. He went a combined 4-4 with a 2.61 ERA. In, Korecky pitched for the Single-A Clearwater Phillies. Converting full-time to a relief pitcher, Korecky went 5-4 with a 2.26 ERA and led the team in 25 saves as their closer.
On December 3, 2003, Korecky was traded by the Phillies along with Carlos Silva and Nick Punto to the Minnesota Twins for Eric Milton. In, Korecky played for the Double-A New Britain Rock Cats and served as their closer. Making a team high 55 relief appearances, he went 3-4 with a 3.36 ERA and had 31 saves. Korecky was also named to the Eastern League postseason All-Star game. Korecky played for the Rock Cats again in, but was limited to just two games after undergoing Tommy John surgery. Korecky returned in and played for the Rock Cats again and the Triple-A Rochester Red Wings. In a combined 50 games, he went 6-4 with a 3.32 ERA and 13 saves. In, Korecky played for the Red Wings again. Appearing in a career high 66 games, he went 5-6 with a 3.71 ERA and saved a career high 35 games. Korecky was named to the International League midseason All-Star game that year. On November 20, 2007, Korecky's contract was purchased by the Twins, protecting him from the Rule 5 Draft. On April 25,, he was promoted to Minnesota from Rochester for the first time. when All-Star Francisco Liriano was sent down. He made his Major League debut April 26 at Texas pitching one inning, giving up one run on one hit and two walks. In only his sixth major league appearance, on May 19, 2008, he made a name for himself in the Twins organization by becoming the first Twins pitcher to get a hit in an American League game since the introduction of the designated hitter, while also picking up his first major league victory in a 7-6, 12-inning victory over the Texas Rangers. The hit—and the at-bat—occurred in what is to date the only ML plate appearance of Korecky's career.
Arizona Diamondbacks
On February 18, 2009, Korecky was claimed off waivers by the Arizona Diamondbacks. He pitched 5 games in relief for Arizona in 2009. He signed as a free agent with the Los Angeles Angels of Anaheim on February 9, 2010. The Angels did not know that Korecky had surgery with Arizona and they released him. He played the season with the independent league team, the Winnipeg Goldeyes.
Toronto Blue Jays
He was picked up by the Toronto Blue Jays on March 6, 2011. He split the 2011 season between the New Hampshire Fisher Cats and the Las Vegas 51s. He appeared in one game for the Toronto Blue Jays in the 2012 season, and the rest of that season with the 51s. On October 4, 2012, Korecky was outrighted to the Blue Jays Triple-A affiliate Buffalo Bisons. He became a free agent on October 10. On April 6, 2013, Korecky was assigned to the Blue Jays Triple-A affiliate Buffalo Bisons. On April 8, he was placed on the disabled list. He was activated from the disabled list on April 16. The Blue Jays re-signed Korecky on December 16, 2013. His contract was selected from the Buffalo Bisons on May 30, 2014. Korecky retired the 4 Kansas City Royals batters that he faced that night, and he was then placed on optional waivers in order to send him back to Buffalo. He was designated for assignment on July 11 to make room for Dan Johnson on the Blue Jays' 40-man roster. After clearing waivers, he was assigned to the Bisons again on July 13. Korecky made just 2 appearances for Toronto in 2014, posting an 8.10 ERA with 2 strikeouts in 3 innings pitched. He elected free agency after the season ended. Korecky signed another minor league deal with the Blue Jays on November 1, 2014. He elected free agency on November 7, 2015, and re-signed with the team on November 9. He became a free agent on November 9, 2016.
