Rivalries in the Australian Football League exist between many teams, most of which typically draw large crowds and interest regardless of both teams' positions on the ladder. The AFL encourages the building of such rivalries, as a method of increasing publicity for the league, to the point of designating one round each year as Rivalry Round where many of these match-ups are held on the one weekend. Whilst some rivalries, such as between teams from adjacent areas, are still strong, the designation of an entire round of fixtures as Rivalry Round is often criticised due to some arbitrary match-ups, or ignoring stronger, more recent rivalries.
With a 22 game season and 18 teams (16 teams from 1995 until 2010 with the introduction of the Gold Coast Football Club and the Greater Western Sydney Giants in 2011 and 2012 respectively), the AFL fixtures are not equal with each team playing seven other teams twice and eight teams once. Choosing to play certain games twice, such as the local derbies and blockbusters (games between the Big 4 Victorian clubs of Collingwood, Carlton, Essendon and Richmond, are known as blockbuster games), results in a skewed fixture which is rarely evened out over time.
Argued by some to be the greatest and longest standing rivalry in the competition. Two clubs in close proximity, fuelled by the rivalry between white (Carlton) and blue collar (Collingwood) suburbs; the rivalry is intensified because the teams have met in six memorable grand finals (Carlton winning five, Collingwood one), including Carlton's 44-point comeback in 1970, and the famous Harmes-Sheldon goal in 1979. Games between these two clubs regularly attract large crowds regardless of whether they are in finals contention or not.
As is the case with two successful sides in any competition, fans of each club love to defeat the other. The two clubs share the record for the most premierships with 16. In recent times, Carlton famously upset the heavily favoured Essendon side by 1 point in the 1999 Preliminary Final. Essendon also led Carlton by 48 points deep into the second quarter of their Round 3 2007 match at the MCG, only to be overrun by Carlton in what would go down as their greatest ever come from behind victory; however, Essendon went on to defeat Carlton over the next 6 encounters, with Carlton finally breaking Essendon's winning streak with an emphatic 76 point win in Round 19, 2010.
A traditional white collar (Melbourne) v blue collar (Collingwood) rivalry, additionally fuelled by a narrow loss to Collingwood which stopped Melbourne from winning a fourth flag in a row in 1958. Half of Melbourne's twelve premierships came against Collingwood and the teams have met in seven grand finals, the most of any pairing. Since 2001, Melbourne has hosted Collingwood in an annual match at the MCG on the Queen's Birthday public holiday Monday in June.