Before coming to Clark, Cather was at Lesley University for five years. At Lesley University, Cather led the program to the NECC Conference Tournament all five years, won the NECC Conference Championship (2017) for the first time in school history, won a regional game against the 24th-ranked team in the country and was selected as NECC Coach of the Year twice (2017 & 2018). Their win totals have climbed every year–from 10 to 14 to 19 to 22 to 27.
As a player, he was drafted by the Washington Nationals in the 33rd round of the MLB Entry Draft. During the summer of 2010, Cather played professionally for the Worcester Tornadoes and former Red Sox great and current minor league coach Rich Gedman. He also won back-to-back New England Collegiate Baseball League Championships with the Vermont Mountaineers in the summers of 2007 and 2008 and played with the Yarmouth- Dennis Red Sox in the historic Cape Cod Baseball League in 2009.
Cather played collegiately at UMaine where he was named to the America East Academic Honor Roll, won an America East Conference Tournament and made an NCAA Regional Appearance. He was also honored with an America East All-Tournament Team nomination, was selected to the America East Second Team two times and named team captain in his senior season.