7th IEEE International Conference on Advanced Video and Signal-Based Surveillance

for Security, Safety and Monitoring in Smart Environments

29 August - 1 September, 2010 Boston (USA)

7th IEEE International Conference on Advanced Video and Signal based Surveillance

AVSS 2009 logo

for Security, Safety and Monitoring in Smart Environments


29 August - 1 September, 2010 Boston (USA)


Important dates
  • Special session proposals
    - 5 March 2010
  • Workshop proposals
    - 19 March 2010
  • Paper submission
    - 5 April 2010
  • Notifications to authors
    - 8 June 2010
  • Camera ready papers due
    - 9 July 2010
  • Early registration deadline
    - 9 July 2010
  • Conference - 29 August
    - 1 September, 2010
News
  • (09/04/10) Challenge information available
  • (16/04/10) Workshop information available
  • (14/06/10) Registration open
  • (14/06/10) Camera ready information
  • (23/06/10) Final submission extended

The 4-3-2-1 Christmas Tree Formation Explained: Shape, Origins, the Width Problem and Its Data Signature

The 4-3-2-1, nicknamed the Christmas tree, is a formation with four defenders, three central midfielders, two attacking midfielders and one striker. Its lines narrow towards the top, so it is compact through the middle but starts with only two players wide. Lineups on RubiScore show the starting shape; the match data shows how it behaved.

This explainer covers where the shape came from, how it finds width without wide forwards, how it handles the flanks, what it looks like in match numbers and why feeds sometimes label it differently. Lineups, live statistics and event timelines are listed at https://rubiscore.com.

What Is the 4-3-2-1, and How Does It Differ from Its Neighbours?

The numbers read from the back: a back four, a flat trio of central midfielders, two attacking midfielders (the number 10s) and one centre-forward. Coaches' Voice says the nickname comes from the shape it makes in a set block. Four relatives are easy to confuse with it:

Width is the sharpest dividing line. A 4-3-3, 4-2-3-1 or flat 4-4-2 lists four wide players: two full-backs and two wide forwards or wide midfielders. The 4-3-2-1 lists two. That "width budget" of two explains most of what follows.

Where Did the Christmas Tree Come From?

The origins are contested, so this section keeps to what sources document. Coaches' Voice, citing Jonathan Wilson's Inverting the Pyramid, says the Dutch coach Co Adriaanse is thought to have introduced the system to top-level football at Den Haag in the late 1980s. It adds that Terry Venables used a 4-3-2-1 as England manager and that the "Christmas tree" label became widespread in British football in 1994.

A caution on Venables: FourFourTwo's review of England's formations at Euro 96 lists 4-4-2 and 3-5-2 for the five matches it covers and notes "not a Christmas tree in sight" in the opener. A manager linked with a shape does not necessarily field it every game.

The best-documented user is Carlo Ancelotti at AC Milan. UEFA's report on Milan's 4-0 win over Shakhtar Donetsk on 24 November 2004 says he used a 4-3-2-1 Christmas tree, with Hernán Crespo as lone striker and Kaká alongside Rui Costa behind him. Andriy Shevchenko and Jon Dahl Tomasson were nursing slight injuries and Filippo Inzaghi was sidelined.

Coaches' Voice describes the wider Milan version: Andrea Pirlo as the central pivot, Gennaro Gattuso and Massimo Ambrosini either side, Clarence Seedorf and Kaká as the 10s, and a centre-forward who was variously Alberto Gilardino, Inzaghi or Ronaldo. Ancelotti won the Champions League with Milan in 2003 and 2007, but accounts differ on when the shape first appeared, so it is not tied here to a particular final.

The same source lists later users: Julian Nagelsmann's RB Leipzig, Maurizio Sarri's Juventus, with Cristiano Ronaldo as the focal forward, and Christophe Galtier's Paris Saint-Germain in 2022/23, with Lionel Messi and Neymar as the 10s behind Kylian Mbappé. In each example the 10s were creators playing inside rather than on the touchline.

How Does a Shape With Two Wide Players Find Width?

Because only the full-backs start wide, a 4-3-2-1 has to buy width by moving people. Coaches' Voice describes three routes:

The third route is the one UEFA's 2004 report shows. In the 52nd minute Rui Costa's lobbed pass found Cafu inside the box, and his cross was headed in by Kaká to open the scoring. Coachbetter says the shape only makes sense with full-backs strong enough in running and tackling.

How Does the Tree Defend and Attack the Flanks?

What Is the Data Signature of a 4-3-2-1?

These are indicators a reader can test on any match. They follow from the shape's structure and are not league-wide norms.

Why Does a 4-3-2-1 Sometimes Appear as a 4-3-3 or 4-2-3-1?

A feed label comes from the positions assigned to the starting eleven. Hudl Statsbomb's documentation describes a starting-xi event holding the players, their positions and the team's formation, and a separate tactical-shift event recording new positions and a new formation. The label is a coded snapshot, not a continuous measure.

The tree is prone to relabelling because its 10s sit between categories. Depending on how a provider codes them, the same eleven can read as:

Average positions help settle it. In a tree the 10s sit between the midfield trio and the striker, no wider than the outer midfielders. In a 4-3-3 they sit wide and level with the striker.

What Are the Trade-Offs, and How Do Opponents Counter It?

The strengths:

The weaknesses:

Opponents tend to attack those gaps:

How Should a 4-3-2-1 Be Read?

Lineups, event timelines and match statistics sit together on RubiScore match pages, so the checks below can be run beside the listed shape.

The 4-3-2-1 trades width for central density and asks two full-backs to cover the touchlines. It is strongest when they win those flanks and the 10s find space between the lines, and weakest when opponents bring real wingers. The label alone cannot say which version took the field; crossing, shot and position data can.