skip navigation

Meet Your Coaches

Head Coach:  Ethan Grefsrud

Grefsrud spent the 2017 volleyball season as the Volunteer Assistant Coach at the University of Wisconsin as a Badger. Many day to day activities included video breakdown, scouting, assisting in running drills in practice, breakdown of skill technique, and assisting the head coach when needed. Wisconsin advanced to the NCAA Division I National Championship Sweet 16 tournament with a season record of 22-10. During this time, Dana Rettke, was named 2017 First-Team All American, AVCA National Freshman of the Year, AVCA Northeastern Region Freshman of the Year, All-Northeast Freshman of the Year, Big Ten Freshman of the Year, All-Big Ten Team and 2017 HotelRED Invitational All-Tournament. Sydney Hilley, 2017 AVCA Honorable Mention All-American, AVCA Northeast Region Honorable Mention, Big Ten All-Freshman Team, K-State Invitational All-Tournament Honors, HotelRED Invitational All-Tournament honors. 

Prior to Wisconsin 2 seasons as a graduate assistant at Winona State University, which included them advancing to the 2nd round of the 2016 NCAA Division II National Championship tournament – the best finish in program history. During his tenure with the program, McKenna Larsen became the team’s first-ever AVCA All-American. His key responsibilities with the Warriors were coordinating travel plans, scouting, recruiting, game day operations, assisting the head coach and practice planning. In addition, he served as summer volleyball camp director at Winona State.

Prior to Winona, he spent 2 season as the Volunteer Assistant at North Dakota State University. Were he received his undergraduate degree in Sports and Recreational Leadership and Management Communication. Not only a student, he was a club All-American at North Dakota State, where his team won a National Club Volleyball Federation (NCVF) national title in 2010 as a libero. He’s also worked summer camps at North Dakota State, Winona State, Wisconsin, and Minnesota.

Email Coach Ethan:

Assistant Coach:  Ariel Johnson

I’m originally from Harvard, Illinois. I played volleyball at Kishwaukee College for two years as a D/S/libero. I then transferred to NDSU for volleyball for my last two years of college. After college I have been coaching club volleyball and refereeing volleyball leagues.

Email Ariel:

Team News and Announcements


Parent Rep Contact Info

Jessica DeJong

Email Jessica

Team Page Manager Contact Info

Dave Henry

Email Dave

Team Documents

2018-19 Sponsors

Thank you to our Red River Infinity Sponsors!

Sponsored by Dynasty Sports Performance

Dynasty Sports Performance

Visit Website

RRIV is partnering with Dynasty to provide all players with a volleyball-specific training program the help players get stronger and faster, and also prevent injuries.

Sponsored by Become a sponsor

Become a sponsor

Visit Website

Smack Sportswear is the official jersey and apparel partner for Infinity Volleyball. To order your new RRIV gear, visit our team store today. 

Sponsored by Become a sponsor

Become a sponsor

Visit Website

Want to participate in your local community? Become a  sponsor for Red River Infinity Volleyball and support youth in your area.