CIES Football Observatory Monthly Report Issue 28 - October 2017

Performance and playing styles in 35 European football leagues

Drs Raffaele Poli, Loïc Ravenel and Roger Besson

1. Introduction

The analysis of pitch performances at both in- dividual and collective level is one of the three principle fields of research of the CIES Football Observatory. The 28th edition of our Month- ly Report compares 35 national competitions across using the database made avail- Figure 1: sample of leagues and number of able by the InStat company. The sample com- matches analysed prises 19,544 matches played between the 1st September 2015 and the 31st August 2017. ssocaton League ae Matches ustra AUT unesla 355 The analysis focuses on three aspects: the elu BEL Frst vson 556 teams’ ball management, the degree of open- elarus BLR reer eaue 454 ness of games, as well as the level of pow- ulara BUL Frst eaue 417 er balance between opponents. For each of Croata CRO 1 354 these domains, we present statistical indica- Cech Rep CZE Cech a 480 tors that permit the ranking of leagues on a enar DEN Superla 448 pertinent and objective basis. Enlan ENG reer eaue 750 ENG/D2 Chaponshp 1'115 Span ESP a 760 ESP/D2 Seuna vsn 935 Fnlan FIN eausla 393 FRA ue 1 758 FRA/D2 ue 2 760 erany GER unesla 603 GER/D2 2 unesla 604 reece GRE Super eaue 500 unary HUN I 395 ISR at hal 424 ITA Sere 760 ITA/D2 Sere 964 etherlans NED Erevse 615 oray NOR Elteseren 462 olan POL Estralasa 592 ortual POR rera a 556 Roana ROM a I 529 Russa RUS reer eaue 488 Scotlan SCO reershp 421 Serba SRB Super a 571 Sterlan SUI Super eaue 354 Slovaa SVK Super a 377 Slovena SVN 1 S 350 Seen SWE llsvensan 470 urey TUR Sper 612 rane UKR reer eaue 362

1 Monthly Report 28 - Performance and playing styles in 35 European football leagues

2. Ball management

The first indicator used when comparing leagues from the point of view of ball manage- ment is that of the percentage of successful passes. A high value indicates the ability of a team to retain possession of the ball. This in- dicator notably refers to the technical prowess of players, the pass distance, the playing style, as well as the pressure on the footballers who have possession. The five major European leagues ranks among the first seven places. The ranking of the Swed- ish (3rd) and the Israeli (4th) top divisions is surprising, given the relatively modest results obtained by their representatives in European competitions. As illustrated in figure 3, the lev- el of pressure on the player with possession partially explains this result. As for Israel, the lack of verticality is also to be considered (fig- ures 4 and 5). Generally speaking, the most competitive championships bring together players with superior technical skills and are made up of more clubs whose philosophy of the game is based on possession. and are the only two countries in the top ten places of the UEFA rankings whose level of success- ful passes is below 80%. As shown in tables 6 and 7, this result must be considered in paral- lel with the low level of competitive balance in these championships.

Figure 2: % of successful passes, by league

1 I 82.4% 79.6% 2 FR 82.2% 20 O 79.3% SE 82.0% 21 FR2 79.2% ISR 81.8% I2 79.2% E 81.4% 2 OR 79.1% ES 81.2% OR 79.1% 7 ER 81.1% 2 S 78.9% 8 RS 81.0% 2 SR 78.6% R 80.6% 27 R 78.4% 10 E 80.5% ER2 78.4% E 80.5% E2 78.4% 12 CRO 80.2% 0 RE 78.3% 1 E 80.1% 1 S 77.7% 1 80.0% 2 ES2 77.6% FI 80.0% 77.6% 1 SI 79.9% SCO 77.2% 17 ROM 79.7% CE 77.2% 18 R 79.6% verae 77

2 Monthly Report 28 - Performance and playing styles in 35 European football leagues

The level of successful passes is reflected, by and large, on the average length of a phase of possession. The values for this indicator vary between less than 12 seconds for the Czech 1. Liga and 15 seconds for the English . As a general rule, the phases of possession last longer in the best perform- ing championships than in lesser competitive leagues. The indicator of the number of successful passes per minute of possession is also in- teresting when it comes to understanding the rapidity of ball circulation. The five major Eu- ropean leagues are in this case in the top five positions. Big-5 league teams are not only able to achieve a greater proportion of passes than the average, but are also able to execute them in a speedier manner. The relatively lower level of passes per min- ute measured for the Swedish and Israeli top divisions in comparison to the percentage of successful passes probably reflects a lesser need to quickly pass the ball around in order to undo the opponents’ defensive game. The same conclusion is valid for the Dutch Eredivi- sie and the Belgian Pro League.

Figure 3: number of passes per minute of possession, by league

1 ER 18.21 1 CE 17.56 2 FR 18.17 ROM 17.56 I 18.12 I2 17.56 ES 17.91 22 RE 17.50 E 17.91 E2 17.50 O 17.90 2 17.46 7 RS 17.88 2 S 17.43 8 17.83 2 OR 17.38 ER2 17.76 27 ES2 17.35 10 R 17.70 28 SCO 17.33 11 E 17.68 2 E 17.28 12 SI 17.67 0 ISR 17.24 1 S 17.65 1 17.17 1 R 17.63 2 FI 17.07 CRO 17.63 OR 17.04 1 R 17.58 E 16.90 FR2 17.58 SR 16.69 18 SE 17.57 verae 17

3 Monthly Report 28 - Performance and playing styles in 35 European football leagues

3. Degree of openness

The second area analysed is the degree of openness of matches. The number of goals scored is a simple but useful indicator to measure the balance of power between attack and defence according to league. Here also, the gaps observed show up divergences both in the abilities of players and the playing phi- losophies of teams. The imbalance between clubs can also explain some differences (see next chapter). The number of goals per match in the com- petitions studied varies between 2.24 for the Spanish Segunda División and 3.16 for the . The most open champi- onships locate in Western Europe. The Eastern European league whose teams score the most goals, the Slovakian top division, is only ranked twelfth. The five second division champion- ships analysed are in the second half of the rankings. The big-5 leagues are, on the contra- ry, in the top half of the table.

Figure 4: number of goals per match, by league

1 SI 3.16 1 ER2 2.56 2 E 2.98 20 OR 2.53 SE 2.94 21 S 2.52 E 2.86 22 E2 2.51 ES 2.86 2 2.50 SCO 2.84 2 R 2.48 7 ER 2.83 2 FI 2.45 8 OR 2.81 2 SR 2.44 I 2.77 27 FR2 2.42 10 E 2.75 28 ROM 2.37 11 E 2.71 2 R 2.35 R 2.71 0 CRO 2.34 1 S 2.68 1 I2 2.33 1 O 2.66 2 ISR 2.30 1 2.65 RS 2.28 1 FR 2.61 RE 2.25 17 2.58 ES2 2.24 CE 2.58 verae 20

4 Monthly Report 28 - Performance and playing styles in 35 European football leagues

The indicator for the actual playing time per goal also allows us to evaluate the degree of openness of matches. At one extreme, in the Swiss Super League, a goal is scored every 16’17’’ of effective play. At the other, one must wait 23’32’’ to see a goal in Israel. The average for the 35 competitions analysed is 20’32’’. Generally, the duration of actual play is higher in the most competitive championships than in the lesser performing leagues. This result reflects a greater fluidity of the game. The -av erage effective playing time for the competi- tions analysed is 55.6%, with a minimum of 51.5% in Portugal and a maximum of 59.6% in .

Figure 5: effective playing time per goal, by league (minutes)

1 SI 16:17 1 20:18 2 SCO 18:14 20 20:32 E 18:47 21 FR 20:46 E 18:48 22 R 20:56 ES 18:50 2 S 20:59 ER 18:52 2 E2 21:25 7 OR 19:07 2 ROM 21:34 S 19:07 2 SR 21:59 R 19:11 27 FR2 22:02 10 CE 19:19 28 FI 22:15 11 OR 19:30 2 I2 22:22 12 O 19:35 0 ES2 22:48 SE 19:35 RE 22:48 1 19:40 2 CRO 22:54 1 ER2 19:47 R 23:18 1 E 19:51 RS 23:29 17 I 20:05 ISR 23:32 18 E 20:14 verae 202

5 Monthly Report 28 - Performance and playing styles in 35 European football leagues

4. Balance of power

The championships also differentiate great- ly in the power balance between adversaries. Beyond goals scored by each team, the gaps in the number of shots from within the op- ponents’ box and in the number of passes achieved are two technical indicators allowing us to grasp the differences in the pitch pro- duction between adversaries. The most competitive teams not only shoot more often than lesser performing teams, but also are capable of shooting from a closer range. The difference in the number of shots from within the opponents’ box is thus a par- ticularly relevant indicator when measuring the power balance between teams. At the level of the 35 competitions analysed, the gaps per match vary between 3.5 shots in the German Zweite and 5.1 shots in the Croatian top division. More generally, the second divisions of the five major European championships emerge as particularly evenly matched competitions. The low level of open- ness measured above is in part linked to this observation. With the exception of the French , the big-5 competitions are part of the most unbal- anced championships. While the general level of players is very high, the great differences between the financial means at the disposal of teams reflects in the dominance of certain clubs. Croatia, Ukraine and the are in a similar situation. Figure 6: average gap between shots from within the opponents’ box, by league

1 CRO 5.11 FI 4.21 2 R 4.96 20 4.14 E 4.94 21 S 4.13 SE 4.63 OR 4.13 E 4.56 2 4.12 S 4.55 2 ISR 4.08 7 SI 4.54 2 R 4.05 8 OR 4.53 2 FR 3.95 R 4.52 3.95 SCO 4.52 28 RS 3.88 11 I 4.49 2 ROM 3.85 12 CE 4.40 I2 3.85 1 ES 4.37 1 O 3.83 1 SR 4.35 2 E2 3.74 1 E 4.34 FR2 3.71 1 RE 4.32 ES2 3.64 17 E 4.25 ER2 3.51 18 ER 4.21 verae 2

6 Monthly Report 28 - Performance and playing styles in 35 European football leagues

The average gap of passes carried out by teams confirms the great balance existing in the second divisions of big-5 league countries. At the other end of the scale, this indicator highlights even more the five major European championships as being among the most un- balanced competitions from the point of view of the teams’ technical production. While a significantly positive correlation exists at team level between passes and shots, the link is not always very strong. Thus, the gaps between passes measured in the German, French, Israeli or Russian top divisions only marginally explain the gaps between shots. In this case, while still important, possession is not a key success factor.

Figure 7: average gap of passes between adversaries per match, by league

1 ER 195 ROM 143 2 R 179 20 E 140 E 176 21 FI 138 ISR 174 22 SE 137 S 168 2 SR 136 I 166 R 136 7 FR 165 2 O 135 8 RS 164 2 R 129 CRO 163 27 OR 128 10 OR 158 28 S 127 ES 158 2 E2 126 12 157 0 ER2 124 1 RE 156 1 CE 121 1 SCO 151 2 SI 119 1 149 FR2 113 1 E 145 I2 113 17 E 144 ES2 103 18 143 verae 1

7 Monthly Report 28 - Performance and playing styles in 35 European football leagues

5. Conclusion

This Monthly Report is but an initial foray in exploiting the numerous possibilities availa- ble thanks to the new collaboration between the CIES Football Observatory and InStat. The depth and breadth of data produced by this company constitutes a solid basis for many future research projects. In terms of performance analysis, the greatest difficulty resides in the ability to interpret data taking into account the particularities of the context from which they arise. The principle conclusion that we can draw here is that the top leagues differentiate themselves above all by the fluidity of games, as illustrated by the highest level of successful passes and the quickest ball circulation. However, a better overall capacity to master the ball does not necessarily lead to more goals. The power balance between opponents and the playing philosophy of teams have the most determining role in the number of goals scored. An unbalanced championship with an attacking mentality will lead to more goals than an evenly matched competition with a defensive approach. The gaps observed between the top and second divisions in the big-5 league countries largely underwrite this observation.

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