|High School:||North Penn|
Junior (2016-17): School record in 400 Medley Relay with a time of 3:43.49... Placed first against Niagara in 200 Medley Relay with a time of 1:45.25... First in 200 Free Lay against Akron with a time of 1:32.97... Place first in 200 Free Relay with a time of 1:34.17 at Bowling Green... Conference Champion in 200 Free Relay with a time of 1:29.97, new school record... Academic All-MAC
Sophomore (2015-16): 4th in 400 Free Relay at Florida Gulf Coast Class with a time of 3:30.72… Competed in 50 Free at Bucknell Invitational and Toledo… Placed 2nd in 200 Free Relay at MAC Championships, clocking in at 1:30.64… Posted season-best 23.07 in 50 Free (sixth-best in program history)… Academic All-MAC.
Freshman (2014-15): Member of 800 meter free relay team that won MAC Championships. Posted season-best times in the MAC Championships during the 50 free (23.68) and 100 free (51.40). At the Cleveland State Invitational Kosten swam her season-best time of 1:54.77 in the 200 freestyle.
High School: Set the school record in the 200 and 400 freestyle relay. Earned the Richard Carroll Award and named an All-American.
Personal: Daughter of Bryan and Susan. Has two sisters, Emily and Lizzie. Chose UB because “I loved the opportunities I could receive through academics and athletics.” Enjoys hiking and the outdoors. Major is business.