Distances traversed at the 2018 FIFA World Cup after 14 games

In May 2018, FIFA announced that Electronic Performance and Tracking Systems that comprise  “two optical tracking cameras located on the media tribune” will track the positional data of players and ball at the 2018 World Cup.

These data, real-time positional data and video, are offered live at World Cup games on two devices: “one for the team analyst observing the match from the media tribune, another for the coaching team at the bench”.

Post-game, the positional data are made available on the FIFA World Cup website for secondary data analysis.

I have started to compile these date in a GitHub repository.

An example of the data is this matrix from the opening game of the tournament for Russian players:

The data available are:

  • Player squad number
  • Player name
  • Distance covered in metres (total; when team in possession; when team not in possession)
  • Percentage of time spent: opposition half; attacking third; penalty area)
  • Number of sprints
  • Top speed
  • Percentage of time in activity zones 1 to 5

The activity zones are defined as:

  • Zone 1: 0-7 km/h
  • Zone 2: 7-15 km/h
  • Zone 3: 15-20 km/h
  • Zone 4: 20-25 km/h
  • Zone 5: >25 km/h

After 14 games, Aleksander Golovin‘s 12,706 metres traversed remains the most distance recorded in a game by a single player.

The list of players who have covered most distance in metres per team in the games (with a link to the data) is:

GameTeamPlayerDistance
1RussiaGolovin12706
7DenmarkEriksen12262
10GermanyKroos11778
4SpainKoke11757
9SerbiaMilivojevic11731
2EgyptTrezeguet11687
13BelgiumMeunier11605
10MexicoHerrera11592
14TunisiaSkhiri11546
14EnglandLingard11379
1Saudi ArabiaAlfaraj11323
7PeruYotun11318
5AustraliaMooy11310
11SwitzerlandDzemaili11222
9Costa RicaRuiz11179
6IcelandSigurdsson11048
2UruguayVecino10875
11BrazilCoutinho10838
12KoreaLee J10789
8NigeriaNdidi10701
12SwedenClaesson10565
4PortugalWilliam10516
3IranAmiri10474
5FranceKante10461
6ArgentinaTagliaficio10399
8CroatiaPerisic10368
13PanamaGodoy10295
3MoroccoBoussoufa10068

A note about traversing

I am keen to connect 2018 technology with 1930s attempts to measure distances in sport contexts. The pioneers described movements as ‘traversing‘ and provided distance estimates.

In his doctoral thesis, Lloyd Messersmith (1942:2) shared his data from basketball collected with a measuring device “which could be used in determining distances traversed” and that provided information about “distances traversed on offense and defense, and the effect of position played on distance traversed”.

Photo Credit

FIFA World Cup (IIP Photo Archive, CC BY-SA 2.0)

Goal scoring at the 2018 FIFA World Cup after 11 games

Eleven games have been completed at the 2018 FIFA World Cup. Twenty-five goals have been scored.

Before the tournament started, I identified some naive priors for the consideration of when goals might be scored in fifteen minute time intervals in the group games.

IntervalPrior
0-15m0.10
16-30m0.15
31-45m0.15
46-60m0.15
61-75m0.20
76-90m0.25

After 11 games my probability profile for when a goal will be scored is:

IntervalPrior
0-15m0.08
16-30m0.16
31-45m0.16
46-60m0.24
61-75m0.12
76-90m0.24

The distribution of goals by half played is first half 0.40 and second half 0.60.

Photo Credit

Fifa world cup 2018 (Коля Саныч, CC BY-ND 2.0)

Naive probability priors for goal scoring at #WorldCupRussia2018

I have some naive prior probability estimates for when goals will be scored at the 2018 FIFA World Cup based on performances in 2014 and 2010.

I am using 15 minute intervals mindful of the additional time added to each half of play.

For the Group games:

IntervalPrior
0-150.10
16-300.15
31-450.15
46-600.15
61-750.20
76-900.25

For the Knockout games:

IntervalPrior
0-150.11
16-300.17
31-450.09
46-600.11
61-750.18
76-900.21
91-1050.05
106-1200.08

Photo Credit

The wait is finally over (@RaheemDanyaro, Twitter)