The Superclasico by Numbers

The Buenos Aires derby is the fixture with the largest number of competitive meetings in world club football and the one whose totals move fastest, because it is played so often.

The most-played club fixture

Two clubs from the same city have met in competitive football more often than any other pairing in the world, a consequence of a long domestic calendar and two institutions that have rarely left the top division. The sheer number of meetings makes this head-to-head record one of the largest datasets available for a single fixture.

That size is methodologically useful, because it makes the aggregate less sensitive to a single extraordinary scoreline than a shorter series would be. It also means the record changes every few weeks during a season, so any published figure for it is a reading with a date attached.

The split of wins

The wins are distributed fairly evenly across the series, with a modest lead changing hands at various points in its history. Draws form a substantial share of the total, which is characteristic of a fixture played between two well-matched sides in a league with a high draw rate.

Because the series is so long and so regularly added to, the lead in wins is not a stable property. A run of two or three seasons can reverse it, and a comparison between two published tables of this fixture is often a comparison of two dates rather than of two rules.

The competition classes

The fixture appears in domestic league competitions, national cups and, in the modern era, continental club competition. The continental meetings are a recent addition to the record and are small in number, which makes them disproportionately important to a series that is otherwise extremely stable.

Regional and super-cup meetings add a further class whose formal status has varied with competition structures. Including or excluding them shifts the totals by a modest amount, and the difference is not trivial when the leading margin in wins is itself small. The class must be stated.

The goal record

Goals in the fixture are numerous but the scoring rate per meeting is moderate for a derby, which reflects the tactical caution that characterises the series in the modern era. Historically the rate was higher, and a comparison across decades shows the general decline in scoring that the domestic league also experienced.

The distribution matters as much as the total. Because the fixture is played so often, extreme scorelines are a very small fraction of the series, which makes the goal record one of the more reliable aggregates available. It is a genuine sample rather than a handful of results.

Why the totals are volatile in practice

The series is added to several times a season, which means a printed figure has a short shelf life compared with a fixture played twice a year. The volatility is arithmetic rather than dramatic: each meeting moves the win count by at most one, and the aggregate is large enough that no single result re-orders the series.

The practical implication is that this record is best presented with its date and with the count of meetings rather than as a settled set of numbers. It is also best presented as wins, draws and defeats rather than as a single combined aggregate, because the three-way split carries information that a combined figure loses.

Reading the series

The informative table reports meetings, wins for each side, draws and goals for each side, with the competition class and the date of the check. From those columns a reader can reconstruct the state of the series and see for himself how narrow the lead is.

This vault treats the fixture as a running record and updates it annually, which for a series this frequently played is the minimum necessary to keep the page from being wrong. A reference that prints a settled total for a fixture still being played is a reference that has stopped being one.

Key reference points

• It is the most-played club fixture in world football.
• The series changes several times per season, so any figure needs a date.
• Draws form a substantial share; report wins, draws and defeats separately.
• Continental meetings are recent, few, and disproportionately important to the margin.
• The size of the sample makes the goal aggregate unusually reliable.
• Print the competition class and the check date beside every total.

A series this long is statistical evidence rather than a curiosity, and the three-way split of results is the part that survives the next round of fixtures.