Merrill Kelly
Kelly with the Diamondbacks in 2019
Arizona Diamondbacks – No. 29
Born: (1988-10-14) October 14, 1988 (age 32)
Houston, Texas
Bats: Right Throws: Right
Professional debut
KBO: April 2, 2015, for the SK Wyverns
MLB: April 1, 2019, for the Arizona Diamondbacks
KBO statistics
(through 2018 season)
Win–loss record48–32
Earned run average3.86
MLB statistics
(through August 11, 2021)
Win–loss record23–25
Earned run average4.21
Career highlights and awards

Kenneth Merrill Kelly (born October 14, 1988) nicknamed ”Woogie”, is an American professional baseball pitcher for the Arizona Diamondbacks of Major League Baseball (MLB). He made his MLB debut on April 1, 2019.[1] Kelly formerly played for the SK Wyverns of the KBO League.[2]

Early life and education

Kelly attended Desert Mountain High School in Scottsdale, Arizona. The Baltimore Orioles selected Kelly in the 37th round of the 2007 Major League Baseball (MLB) draft, but he did not sign a contract. He attended Yavapai College. After playing college baseball at Yavapai for two years, the Cleveland Indians took him in the 22nd round of the 2009 MLB draft, but again, he did not sign. He transferred to Arizona State University, where he played for the Arizona State Sun Devils in 2010.


Tampa Bay Rays

The Tampa Bay Rays selected Kelly in the eighth round (251st overall) of the 2010 MLB draft.[2] Kelly advanced about one minor league level each season, beginning his career at Low-A in 2010 and reaching Triple-A for the first time in 2013. He split his first professional season between the Hudson Valley Renegades and the Bowling Green Hot Rods. He was 8-7 with a 3.28 ERA for the 2011 Charlotte Stone Crabs. He had an 8–3 record and a 3.57 ERA for the 2012 Montgomery Biscuits after being used primarily in relief. In 2013, he went 13–8 with 111 strikeouts and a 3.64 ERA in 28 games (26 starts) for the Biscuits and Triple-A Durham Bulls. He allowed only 128 hits in 158 1/3 innings. He was a non-roster invitee to 2014 spring training, but did not make the Opening Day roster.[3] He pitched the 2014 season for Durham, going 9-4 with a 2.76 ERA, but remained in the minor leagues.

SK Wyverns

Kelly signed with the SK Wyverns of the Korea Baseball Organization (KBO) ahead of the 2015 season. Through 4 seasons, with SK Wyverns, Kelly pitched to a 36-25 record and a 3.80 ERA.[2] He became a free agent after the 2018 season.

Arizona Diamondbacks

On December 4, 2018, the MLB Arizona Diamondbacks signed Kelly to a two-year major league contract.[4] On April 1, 2019, Kelly made his major league debut in a start versus the San Diego Padres. He earned a win and recorded a quality start by totaling six innings, while allowing three runs and striking out three.[5] In his first season with Arizona, Kelly led the National league in losses with 14 but led the team in wins (13) and innings (183+13). Kelly began the 2020 season in the rotation before being shut down on September 1 after 5 starts due to a shoulder injury.


  1. ^ "Merrill Kelly Stats". Sports Reference LLC. 2019. Retrieved August 5, 2019.
  2. ^ a b c "Merrill Kelly Minor, Fall, Winter and Korean Leagues Stats". Sports Reference LLC. 2019. Retrieved August 5, 2019.
  3. ^ Long, A. Stacy (March 26, 2014). "Kelly expected to start with Bulls". Montgomery Advertiser. Archived from the original on October 11, 2014. Retrieved October 7, 2014.
  4. ^ Dale, Shane (December 4, 2018). "Diamondbacks sign Desert Mountain High School, ASU alum Merrill Kelly". KNXV-TV. Retrieved August 5, 2019.
  5. ^ "D-backs vs. Padres Box Score | 04/1/19". Major League Baseball. April 1, 2019. Retrieved April 1, 2019.