Born in Henderson, Nevada, Jack-Thomas Wold attended Basic Academy of International Studies, where he lettered all four years he attended. While he played, the Wolves won a three league titles from 2014-2016 and back-to-back Nevada 4A State Championships in 2016 and 2017, the first championship their first in three decades. Wold himself was a big reason why, as he hit .460 with 10 home runs in his senior year and was named to the All-Southern Nevada and All-Sunrise First Teams and was the All-Sunrise Region Player of the Year in 2017.
He went undrafted at the end of his high school career and attended the University of Nevada, Las Vegas.