DOB: 22 July 1960
MFC Debut: Round 3, 1987 against Geelong at Kardinia Park
Last Game: Semi Final 1988 against Collingwood at MCG
From: Springvale/South Melbourne/Sandringham/North Melbourne
Number: 39 (1987-1988)
Honours
Reserves Best and Fairest - 1988
Games: 24 (44 total)
Goals: 5 (24 total)
Career Statistics
| Wins | Draws | Losses | Winning % |
| 14 | 0 | 10 | 58.33 |
Koop began his career at South Melbourne, playing 15 games in three seasons, before joining SANFL side Woodville in 1982 where he remained until the end of 1984.
He joined North Melbourne in 1985 via one practice match at Sandringham, a move the Roos engineered to cut down on the transfer they were negotiating with the SANFL side. Koop played just two games in his first season after being sidelined with a hernia, and three in his second. After winning North's Reserves best and fairest in 1986, the Kangaroos offered him to the newly formed Brisbane Bears. They declined the offer, and after he was linked to VFA sides Sandringham and Springvale, Melbourne stepped in and signed him. He played 17 games in his first season but was less successful in 1988, appearing seven times but being dropped for the Preliminary Final win and subsequently missing the Grand Final.
Koop's 1989 season was ruined by injury, after hurting his knee in the pre-season he returned for two Reserves games early in the year then had to undergo surgery. He didn't play another senior game. Delisted at the end of that year, he rejoined Springvale as a playing assistant coach, remaining there through 1994.
In 2003 Koop was coach of Frankston YCW, and in 2008 Cranbourne. In 2011 Cranbourne went through the season undefeated to win the premiership but he was sacked in August 2013. He coached Dromana in 2014 and 2015 until leaving the club at the end of that year. Also coached Officer in the first half of 2022.
| Year | Games | Goals | Brownlow |
| 1987 | 17 | 5 | 0 |
| 1988 | 7 | 0 | 0 |
Lists
North Melbourne
SANFL
South Melbourne
VFA
Media
Age - 04/11/1986
Inside Football - 04/03/1987
Age - 04/07/1989
Age - 03/04/1990
Mornington Peninsula Leader 01/04/2003
Pakenham Gazette - 07/08/2013
Frankston Standard Leader - 19/08/2015
Herald Sun - 17/05/2022
MFC Past Players newsletter - 08-09/2023