Amato makes career-best 24 saves, while Chanenchuk finishes his hat trick with the game-winning goal.
Maryland moves to 8-1 for the first time since 2004 with the victory.
Charlie Raffa won 15-of-18 faceoffs with 11 groundballs, a goal and an assist to lead No. 1 Maryland.
Niko Amato makes 13 saves in the win, while Jesse Bernhardt lead the defense with 10 groundballs.
Senior long pole Jesse Bernhardt headlines the group as a first team selection heading into the 2013 season.
Kevin Conry was hired as Maryland's assistant coach/defensive coordinator in August 2012 and is responsible for the Terrapins' overall defense.
Conry comes to College Park after a successful five-year stint at Fairfield, where he was the Stags' associate head coach for the past two seasons. He was responsible for turning around a defensive unit that ranked 39th in the nation prior to his arrival into a unit that ranked among the top 16 in the country in each of the past three seasons.
In addition to the six-on-six defensive improvements, Conry also helped the Stags improve in man-down defense, with Fairfield ranking among the top 17 in the nation since 2010.
Conry was also a big factor in Fairfield's recruiting efforts, including the Stags' 2013 freshman class, which was ranked the 12th-best incoming class in the country, according to Inside Lacrosse.
Prior to joining the Fairfield coaching staff, Conry spent the 2007 season at Penn State, where he helped recruit the 2008 Nittany Lions' freshman class, which Inside Lacrosse ranked the fifth-best class in the nation. Penn State finished the 2007 season with the 13th-best defense in the country, allowing just 7.92 goals per game. Conry started his coaching career at Sienna, where he served as an assistant from 2004-06.
A 2004 graduate of Johns Hopkins, Conry was a four-year member of the Blue Jays lacrosse team, helping the squad to a runner-up finish in the 2003 NCAA Division I Championship. He earned a bachelor's degree in political science at Hopkins and went on to earn a master's of Science in Education from the University of Albany in 2006.
A native of Rockville Centre, N.Y., Conry is married to the former Elizabeth Hannan. The couple has one daughter, Isabelle Grace.