El ColegiadoData on refereeing in the Liga

Estrada Fernández × Iker Muniain

23 matches of Iker Muniain (Athletic Bilbao) refereed by Xavier Estrada Fernández, from 2009-10 to 2019-20.

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Player data: 2000-01 → 2021-22 only. Player-level match sheets come from Zenodo (BeSoccer, CC BY-NC 4.0 licence, non-commercial use). No free source provides them after 2021-22: more recent matches are not counted here. Penalties conceded are not attributed to players in the source, so they are not analysed.

In short

Estrada Fernández refereed 23 Liga matches in which Iker Muniain took part, from 2009-10 to 2019-20: 1,697 minutes played, 1 yellow cards and 0 red cards. With the other referees, over the same seasons (292 matches, 19,994 minutes), Iker Muniain receives 0.23 yellow cards per 90 minutes, against 0.05 with Estrada Fernández.

Verdict: no clear difference with the other referees.

Cards are rare (less than one per player per match): over a few dozen matches, only a very large deviation can be told apart from chance. "No clear difference" does not mean "no effect".

Matches

23

20 starts · 1,697 minutes · 11 seasons

Yellow cards

1for 3.7 expected

0.05 per 90 minutes with this referee · 0.23 with the others

no clear difference

Red cards

0for 0.1 expected

0.00 per 90 minutes with this referee · 0.01 with the others

no clear difference
For experts: statistical tests and method

Permutation test stratified by season: within each season, the player's matches given to this referee are drawn again at random among all the player's matches (same number per season). Deviation = (observed − expected cards) per 90 minutes played with this referee; positive = more cards than expected. q: Benjamini-Hochberg correction over the 3,781 pairs with at least 10 matches, separately for yellows and reds.

MeasureObservedExpectedDeviation / 90 minpqVerdict
Yellow cards13.69−0.1420.070.97no clear difference
Red cards00.07−0.0040.781.00no clear difference

The 23 matches

Minutes played and cards received by Iker Muniain in each match refereed by Estrada Fernández.

DateMatchTeamMinutesYellowsReds
23 Jan 2010Deportivo de A Coruña 3-1 Athletic BilbaoAthletic Bilbao↑ 63′ → 90′00
18 Apr 2010Athletic Bilbao 0-0 Real ZaragozaAthletic Bilbao↑ 69′ → 90′00
31 Oct 2010Athletic Bilbao 3-0 Getafe CFAthletic Bilbao0′ → 78′00
14 Feb 2011RCD Mallorca 1-0 Athletic BilbaoAthletic Bilbao0′ → 90′00
20 Mar 2011Athletic Bilbao 0-1 Villarreal CFAthletic Bilbao0′ → 90′00
17 Oct 2011Athletic Bilbao 3-1 CA OsasunaAthletic Bilbao0′ → 76′00
21 Mar 2012Atlético Madrid 2-1 Athletic BilbaoAthletic Bilbao0′ → 90′00
1 Feb 2013Real Valladolid 2-2 Athletic BilbaoAthletic Bilbao0′ → 46′00
7 Apr 2014Levante UD 1-2 Athletic BilbaoAthletic Bilbao0′ → 90′00
18 May 2014UD Almería 0-0 Athletic BilbaoAthletic Bilbao0′ → 90′00
2 Nov 2014Athletic Bilbao 1-0 Sevilla FCAthletic Bilbao0′ → 83′00
1 May 2016Athletic Bilbao 2-1 RC Celta de VigoAthletic Bilbao0′ → 59′00
11 Sept 2016Deportivo de A Coruña 0-1 Athletic BilbaoAthletic Bilbao0′ → 68′00
4 Dec 2016Athletic Bilbao 3-1 SD EibarAthletic Bilbao0′ → 90′00
14 Apr 2017Athletic Bilbao 5-1 UD Las PalmasAthletic Bilbao0′ → 90′00
21 May 2017Atlético Madrid 3-1 Athletic BilbaoAthletic Bilbao0′ → 90′00
20 Sept 2017Athletic Bilbao 1-2 Atlético MadridAthletic Bilbao0′ → 90′00
12 May 2018Deportivo Alavés 3-1 Athletic BilbaoAthletic Bilbao0′ → 90′00
23 Sept 2018Real Betis 2-2 Athletic BilbaoAthletic Bilbao↑ 82′ → 90′00
27 Jan 2019Athletic Bilbao 1-0 Real BetisAthletic Bilbao0′ → 79′00
12 May 2019Athletic Bilbao 3-1 RC Celta de VigoAthletic Bilbao0′ → 80′10
30 Aug 2019Athletic Bilbao 2-0 Real SociedadAthletic Bilbao0′ → 90′00
1 Jul 2020Valencia CF 0-2 Athletic BilbaoAthletic Bilbao0′ → 82′00

↑: came on as a substitute. Stoppage time is not recorded in the source: minutes stop at 90.

Iker Muniain with other referees

  • Mateu Lahoz27 matches
  • Del Cerro Grande24 matches
  • Alfonso Álvarez17 matches
  • Gil Manzano17 matches
  • Martínez Munuera17 matches
  • David Fernández Borbalán16 matches
  • Sánchez Martínez15 matches
  • Iglesias Villanueva14 matches
  • Undiano Mallenco13 matches
  • Carlos Clos Gómez12 matches
  • González González12 matches
  • Hernández Hernández12 matches
  • Melero López11 matches
  • Carlos Velasco Carballo11 matches
  • Jaime Latre10 matches