Kozlowski played four years of outdoor varsity soccer and varsity lacrosse for Mercy and was a founding member of the indoor varsity soccer team that started two years ago.
"She's just the motor that makes our team go," Mercy varsity lacrosse head coach Brian Casserly said of the two-time captain during the award presentation.
Casserly also highlighted Kozlowski's key role in setting the tone for the team.
"Wins 112 draw controls this year and gets us off on the right foot in every game," Casserly said. "And in addition to that, she's just a great kid."
Off the field, Kozlowski served as co-president of Mercy High School's Girls Athletic Association, helping plan and emcee pep rallies and helping organize the school's college signing days. She was also active in community service, arranging several service trips to the Brightview Senior Living Center in Towson, Md. She led other Mercy athletes in service activities working with the Brightview staff.
"For me, it's just the achievement over my last four years and working with my teammates and everyone around me to make Mercy the place I love to be at," Kozlowski said as she accepted the award. "It's just really special for me today."
Maynard Edwards of the Masonic Charities of Maryland was on hand for the award presentation, which had an added meaning for the organization.
"What makes this even more special for the Freemasons of Maryland is that your granddad has been a Freemason of Maryland for over 50 years," Edwards told Kozlowski. "... That makes it even more special for us to know that you are out in the community doing these things, doing these things at school and out on the field. So, this is just really, really special for us this time."
Kozlowski will attend Stevenson University in the fall, where she will continue her lacrosse career for the Mustangs.