- Bats Right, Throws Right
- Height 5' 10", Weight 180 lbs.
- School Slippery Rock University of Pennsylvania
- High School Aurora (OH) High School
- Born ~1992
John Kovalik pitched in independent leagues from 2014-2017.
Kovalik was pitching coach at Slippery Rock University of Pennsylvania, his alma mater, from 2017-2018, then was hired by the Houston Astros. He was pitching coach for the Tri-City Valley Cats in 2019, FCL Astros in 2021, and Fayetteville Woodpeckers in 2022.