URBA Top 13

The URBA Top 12 (formerly "Torneo de la URBA") is an Argentine rugby union club competition organised by the Buenos Aires Rugby Union (URBA). It is the top division of the Argentine rugby league system. Created on 10 April 1899 by the "River Plate Rugby Union" (current Argentine Rugby Union – UAR), the Top 13 is the oldest rugby competition in South America and one of the oldest club competitions in the world.

Top 12 is one of the country's two main club competitions, along with Torneo del Interior, where clubs from the rest of the Provinces of Argentina take part. The championship runs from March to October.

Despite being from the city of Rosario in Santa Fe Province, Atlético del Rosario take part in Top 12 as founding member of the UAR. The other clubs from Rosario compete in tournaments organised by the Rosario governing body.
Until 1997 a league system was used, if two or more clubs finished with the same number of points they would share the title. This happened several times, including in 1939 when a record 3 clubs had to share the title. To remedy this, a play-off system leading to a grand final was instaured in 1998. This new system has been in use since then, except in 2001.

In 1998, the URBA introduced the playoff system, with a final match in a neutral venue to determine a unique champion of the season. New changes to the rules were added in 2008, when the fourteen best placed teams at the end of the regular season were eligible to play a second stage, named "Top 14". Every club played each other only once in a single-robin championship (either home or away). At the end of this phase, the first 4 clubs qualified for the semi-finals of the tournament

Tables are available for selected soccer competitions and seasons only. No positions are estimated.