A record number of 362,098 students from 2,560 schools entered.

Results are given below for the 1986 AMC. There was 1 perfect score.

Medals were presented at a function held at Bonython Hall, University of Adelaide, on Fiday 31 October, by the Governor of South Australia, Dame Roma Mitchell.

This is the first of two years in which prodigy Terence Tao won a medal. Here he competed as a 10 year old in the Senior Division. He was later to win a Fields Medal, considered equivalent in mathematics to the Nobel Prize.

Back row from left: Daniel Calegari, Ross Jones, Geoffrey Bailey, Jonathon Potts, Ben Robinson, Blair Trewin.
Middle row: Wayne Thair, David Wallace, Carl Detmann, Ralph Loader, Joseph Lau, Adrian Chen.
Front row: Brian Weatherson, Andrew Withy, Jeny Abraham, Dale Hawkins, Adam Hedley, Terence Tao.

The medallists were:

AMC Medallists from the Junior, Intermediate & Senior Divisions
NAME	SCHOOL		YR
HAWKINS Dale	Taree High School	NSW	8
HEDLEY Adam	Melbourne C of E Grammar School - Wadhurst	VIC	8
LAU Joseph	North Sydney Boys High School	NSW	8
MUKHERJEE Suvendu	Knox Grammar School	NSW	8
WEATHERSON Brian	Mazenod College	VIC	8
ABRAHAM Jeny	Penleigh and Essendon Ladies College	VIC	9
BAILEY Geoffrey	St Aloysius College	NSW	10
CALEGARI Daniel	Melbourne C of E Boys Grammar School	VIC	9
THAIR Wayne	Kelmscott Senior High School	WA	10
TREWIN Blair	Canberra Grammar School	ACT	10
WALLACE David	Rongatai College	NZ	10
WITHY Andrew	Opononi Area School	NZ	9
BARDA Mark	Sydney Boys High School	NSW	12
CHEN Adrian	Prince Alfred College	SA	12
DETTMANN Carl	University High School	VIC	12
HOGAN David*	James Ruse Agricultural High School	NSW	12
JONES Ross	Rosny College	TAS	12
LOADER Ralph	Shirley Boys High School	NZ	12
PLAYOUST Catherine	Loreto Convent, Kirribilli	NSW	12
POTTS Jonathon	Brisbane Grammar School	QLD	11
ROBINSON Benjamin	Narrabundah College	ACT	12
TAO Terry	Blackwood High School	SA	12

* denotes perfect score