In 2017, Kaminsky made his open-wheel racing debut in the U.S. F2000 National Championship, driving for Kaminsky Racing. He finished 18th in the final points standings with a best finish of eighth at Road America. He returned to the series the following year, this time driving a full season for DEForce Racing, where he finished tenth in the points after getting a best finish of fourth, once again at Road America.[3] In 2019, Kaminsky switched to Pabst Racing, where he won three poles and earned seven podiums to finish fourth in the final points standings.[4]
Indy Pro 2000 Championship
In 2020, Kaminsky moved over to the Indy Pro 2000 Championship, remaining with Pabst Racing.[5] He finished eighth in the standings with one pole and three podium finishes. Kaminsky remained with the team the following season,[2] but only ran the first seven races of the year and finished 13th in the points. Regardless, he was once again retained by the team in 2022,[6] where he ran in the first ten races before being released. He finished 14th in the standings with three podium finishes.