Kauffmann was reassigned to minor-league camp by the Rockies on Monday.
Kauffmann made 28 starts in the upper minors in 2022, and finished with a 4.96 ERA over 141.2 innings of work for Double-A Harford and Triple-A Albuquerque. The 25-year-old right-hander will be a part of the Isotopes' rotation in Triple-A to begin 2023, and could be called on to make starts for Colorado at some point over the summer.