Zack Hasenyager took over the Grinnell College tennis teams beginning in the 2021-22 campaign.
He immediately guided his first Pioneer women's team to the first NCAA Division III Regional championship-round match in the 48-year history of the program. Grinnell set a school record for victories with 21 and won the Midwest Conference title.
Through the 2025-26 season, Hasenyager's teams have won five Midwest Conference titles and appeared in five NCAA D-III Tournaments. His squads are a combined 30-0 in league play and he has coached a two singles entries and one doubles entry to NCAA D-III Tourney berths. A two-time MWC Coach of the Year, Hasenyager has coached two league Players of the Year.
Hasenyager spent seven seasons at the College of Wooster, making his impact felt immediately in 2014-15 when he guided the Fighting Scots to a No. 25 finish in the final Intercollegiate Tennis Association Central Region rankings. The 2019 North Coast Athletic Conference Coach of the Year had his squad out to an 8-3 start last season before the campaign was halted due to COVID-19. Hasenyager has coached All-NCAC first-team singles and doubles players, including the league's 2017 Player of the Year.
Prior to Wooster, Hasenyager served as a graduate assistant coach at his alma mater, the University of Redlands in California. While there, he coached NCAA All-Americans in both singles and doubles, as well as multiple All-SCIAC players. He was also largely responsible for bringing in the nation's No. 12 recruiting class in 2013.
Prior to coaching at Redlands, Hasenyager spent three years as a professional tennis instructor at the Bainbridge Athletic Club in Bainbridge Island, Wash., where he developed a program for high-level juniors, ran United States Tennis Association league clinics and taught the sport to all skill levels, among other duties.
Hasenyager was a doubles specialist as a player for Redlands while also contributing in singles during his junior and senior seasons. The Bulldogs qualified for the NCAA Div. III Tournament every year (2005-08), and achieved final rankings of No. 5 (2005), No. 7 (2006), No. 17 (2007) and No. 12 (2008).
A standout in the classroom, Hasenyager earned Phi Beta Kappa honors, receiving a bachelor's degree from Redlands with a major in managerial studies and economics. A three-time ITA Scholar-Athlete, he also completed a master's degree in business administration at Redlands.
