Senior (2017-18): Did not see match action

Junior (2016-17): Achieved GLIAC All-Academic Team recognition ... Registered a 2-11 overall doubles record, exclusively in conference match competition ... Combined with Miles Munro at the doubles three flight to go 1-8 and turned in a 1-3 mark at the number three position partnering with Stephen Prica. 

Sophomore (2015-2016): Appeared in seven double matches going 0-7 with Ieuan Lister

Freshman (2014-15): Appeared in 12 singles matches splitting time between the fourth, fifth, and sixth singles positions ... Went 7-10 overall in doubles play ... With partner Mateusz Izycki, Koster went 6-8 including 5-7 in #2 Doubles and 1-1 in #3 Doubles ... With TJ Meyers, the tandem went 1-2 in #3 Doubles.

High School: A four-year tennis letterwinner at Allegan (Mich.) High School ... Graduated in 2014 ... Coached by Gary Ellis. 

Personal: Son of Chris and Michelle Koster ... Born in Plainwell, Mich. ... Older brother (Kyle Koster) was a four-year letterwinner (2010-14) in tennis at LSSU ... Likes hunting ... Majoring in criminal justice.