Kreiss brings a wealth of coaching experience having coached a variety of sports over more than 20 years including cricket, softball rugby and basketball. He was head of the basketball program at Hutt International Boys' School in Wellington, New Zealand for 10 years taking several teams to playoffs and championship games before making the move to King to run the Youth Ministry program.
During his time at King he was head coach of the mens' junior varsity basketball team for one year and assistant coach for the Lady Tornado basketball squad for three seasons before taking the head job with the cycling team in 2009. Kreiss encouraged the team to a second-place finish in their first season of competition in 2010. He is a USAC certified coach and teaches in the youth ministry and physical education departments at King.
Kreiss graduated from Eastern University in 1988, with a BA in education, History and Youth Ministry and received his MEd. from Massey University (New Zealand) in Educational Guidance in 2000.