The Nittany Lions won their first Big Ten Tournament game since 2008 Thursday afternoon.
The game will now take place at 10 a.m. on Thursday, May 26.
Hiatt is coming to the Nittany Lions as a graduate transfer after four years with Texas Tech.
Catcher Matt Wood earned All-Big Ten first-team honors and took home the 2022 conference batting title.
Washington was Penn State's head coach from 2007 to 2019, compiling a record of 209-169.
Booth, who spent four years at Penn State in the 1990's, has been serving as the Nuggets' general manager since 2020.