Noted pitching analyst Josh Kalk is leaving the Rays.
Kalk had been with the Rays officially since March 2009, when he was hired as a baseball research and development analyst, and in December 2015 was promoted to director of pitching research and development.
Kalk is leaving to pursue other opportunities, which seems likely to include signing with another team. His latest contract with the Rays was up Tuesday night, Oct. 31.
Kalk is an expert in PITCHf/x data and injury prevention studies and modeling. The Rays never liked to talk much about him or what he did, preferring to keep as much information proprietary as possible.
Before joining the Rays, Kalk wrote a piece for The Hardball Times about applying statistical data to determine potential injury circumstances.
Before joining the Rays he was a math professor at Bluefield State College with a background in physics and computer science.
Longtime Rays pitching coach Jim Hickey also left, parting ways at the end of the season by what the team said was mutual decision, and has since been hired by the Chicago Cubs, where he reunites with former manager Joe Maddon.