In 1975, the VFL competition consisted of twelve teams of 18 on-the-field players each, plus two substitute players, known as the 19th man and the 20th man. A player could be substituted for any reason; however, once substituted, a player could not return to the field of play under any circumstances. Teams played each other in a home-and-away season of 22 rounds; matches 12 to 22 were the "home-and-way reverse" of matches 1 to 11. Once the 22 round home-and-away season had finished, the 1975 VFL Premiers were determined by the specific format and conventions of the "McIntyre Final Five system".
The reserves premiership was won by. Geelong 16.18 defeated 11.17 in the Grand Final, held as a curtain-raiser to the seniors Grand Final at the Melbourne Cricket Ground on 27 September.
Notable events
Football matches were telecast in colour, following the official launch of colour television in Australia on March 1, 1975. In response to this, many clubs adopted brighter playing colours: changed its colours from maroon, blue and white to red, blue and gold; changed the primary colour of its guernsey from navy blue to royal blue; and other clubs, such as and adopted coloured home shorts to replace the black they had previously worn.
The centre square replaced the centre diamond.
There was a wild brawl in the Round 1 match between Hawthorn and North Melbourne involving 34 of the 36 players. Hawthorn's Don Scott and North Melbourne's Brad Smith did not participate. There were no reports from this match.
On 17 June, Hawthorn announced that it had given full-forward Peter Hudson who had only played three and a half games for Hawthorn in three years, a clearance to Glenorchy.
The second quarter of the round 14 match between Carlton and Essendon at Windy Hill lasted almost 40 minutes, with Carlton scoring 14.1 to Essendon's 4.1 for a record quarter aggregate score of 18.2. It is the first quarter to beat South Melbourne’s 1919 team record of 17.4.
*Near the end of the quarter, a massive brawl involving all 36 players erupted when Essendon centreman Neville Fields ran past Carlton forward Craig Davis and king-hit him in retaliation for some supposed earlier act of aggression against an Essendon player. Noticing the unconscious Davis, both Rod Ashman and Rod Austin ran to remonstrate with Fields, followed by their Carlton team-mates, and the fight was on. Carlton's Phillip Pinnell knocked out Essendon's Dean Hartigan. It took a long time for the match to resume. Field umpire Ian Robinson was showered with cans by spectators. Eight players were reported. Many more players would have been reported had the umpires been able to turn their attention elsewhere. The tribunal decisions were:
* Rod Ashman of Carlton was suspended for 4 weeks, for striking Neville Fields.
* Rod Austin of Carlton was suspended for 4 weeks, for striking Neville Fields.
* Phillip Pinnell of Carlton was suspended for 2 weeks, for striking Robin Close.
* Robin Close of Essendon was suspended for 2 weeks, for striking Phillip Pinnell.
* Laurie Moloney of Essendon was suspended for 2 weeks, for charging Phillip Pinnell.
* Neville Fields of Essendon was found not guilty of striking Rod Austin.
At the end of the season, greatly dissatisfied with the approach of coach Des Tuddenham, and disturbed by the fact that, under Tuddenham, Essendon had been involved in two massive brawls in two consecutive years, the committee of the Essendon Football Club sacked Tuddenham and paid out his contract.
*Also, given the example of an injured John Nicholls in the 1973 Grand Final, and that of Tuddenham having his leg broken in the round 10 match against Richmond, Essendon now recognized the dangers of having its coach on the playing field and liable to injury.
