Dave graduated from Avoca High School. In 1959 he earned a BA in Mathematics form UNI were he also played 4 years of football for the Panthers. In 1963 Dave graduated from Northern Colorado with a Masters in Mathematics. Dave taught in several Iowa high schools and coached football and track from 1959 to 1969. He also served as an assistant football coach at Simpson College along with teaching mathematics from 1969-1972. In 1972 Dave left the teaching and coaching to work as a math/science consultant with a publishing company. Dave started his officiating career in 1969 working high school and college level track and also officiating football, basketball, and baseball. Dave has been a Drake Relays official since 1972. He was inducted into the Drake Relays “Wall of Honor” in 2004. Dave has been an official at the state meets since 1972 and has served as the Chief Umpire since 1999. Dave’s officiating resume includes:
- • The NCAA D-I Outdoor Championships in Buffalo, N.Y. The NCAA D-I Cross Country Championships in Ames.
- • The Big 12 Indoor Conference Championships in Ames.
- • The NCAA D-III Outdoor Championships at Wartburg.
Currently Dave is the PA announcer for the Harlan Community High School Track meets. In 1997 Harlan Community High School named the Girl’s track meet “The Dave Koos Relays”. Today Dave is back at coaching with the Harlan Girls track team. Which placed 2nd at the 2005 State track Meet. Dave spends his spring and summer in Harlan and the fall and winter in Chandler, AZ. Dave has been married 44 years to his wife Kay. They have two sons, Tom and Todd, and 4 grandchildren.