El ColegiadoData on refereeing in the Liga

Estrada Fernández × Sergio Canales

28 matches of Sergio Canales (Racing de Santander, Valencia CF, Real Sociedad, Real Betis) refereed by Xavier Estrada Fernández, from 2009-10 to 2020-21.

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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 28 Liga matches in which Sergio Canales took part, from 2009-10 to 2020-21: 1,818 minutes played, 5 yellow cards and 0 red cards. With the other referees, over the same seasons (272 matches, 17,357 minutes), Sergio Canales receives 0.16 yellow cards per 90 minutes, against 0.25 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

28

21 starts · 1,818 minutes · 11 seasons

Yellow cards

5for 3.5 expected

0.25 per 90 minutes with this referee · 0.16 with the others

no clear difference

Red cards

0for 0.0 expected

0.00 per 90 minutes with this referee · 0.00 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 cards53.51+0.0740.341.00no clear difference
Red cards00.000.0001.001.00no clear difference

The 28 matches

Minutes played and cards received by Sergio Canales in each match refereed by Estrada Fernández.

DateMatchTeamMinutesYellowsReds
18 Oct 2009Real Zaragoza 2-2 Racing de SantanderRacing de Santander↑ 70′ → 90′00
17 Jan 2010Racing de Santander 1-1 Real ValladolidRacing de Santander0′ → 76′00
27 Aug 2011Valencia CF 4-3 Racing de SantanderValencia CF↑ 46′ → 90′00
31 Mar 2013Atlético Madrid 1-1 Valencia CFValencia CF↑ 67′ → 90′00
15 Sept 2013Real Betis 3-1 Valencia CFValencia CF↑ 73′ → 90′00
16 Mar 2014Real Sociedad 1-0 Valencia CFReal Sociedad0′ → 76′00
12 Apr 2014RC Celta de Vigo 2-2 Real SociedadReal Sociedad0′ → 76′10
21 Sept 2014Real Sociedad 1-2 UD AlmeríaReal Sociedad0′ → 60′00
1 Mar 2015Valencia CF 2-0 Real SociedadReal Sociedad0′ → 46′00
17 May 2015Real Sociedad 0-3 Granada CFReal Sociedad0′ → 90′00
22 Sept 2015Granada CF 0-3 Real SociedadReal Sociedad0′ → 69′00
10 Dec 2016Real Sociedad 3-2 Valencia CFReal Sociedad↑ 72′ → 90′00
25 Aug 2017Real Sociedad 3-0 Villarreal CFReal Sociedad↑ 74′ → 90′00
7 Jan 2018CD Leganés 1-0 Real SociedadReal Sociedad0′ → 65′00
17 Mar 2018Real Sociedad 1-2 Getafe CFReal Sociedad0′ → 67′00
22 Apr 2018Málaga CF 2-0 Real SociedadReal Sociedad0′ → 90′10
23 Sept 2018Real Betis 2-2 Athletic BilbaoReal Betis0′ → 90′10
4 Nov 2018Real Betis 3-3 RC Celta de VigoReal Betis0′ → 90′10
27 Jan 2019Athletic Bilbao 1-0 Real BetisReal Betis0′ → 90′00
10 Mar 2019RC Celta de Vigo 0-1 Real BetisReal Betis0′ → 90′00
7 Apr 2019Real Betis 2-1 Villarreal CFReal Betis0′ → 67′00
27 Sept 2019Villarreal CF 5-1 Real BetisReal Betis0′ → 90′00
22 Dec 2019Real Betis 1-2 Atlético MadridReal Betis0′ → 90′00
16 Feb 2020CD Leganés 0-0 Real BetisReal Betis0′ → 90′00
18 Oct 2020Real Betis 0-3 Real SociedadReal Betis0′ → 58′00
29 Dec 2020Levante UD 4-3 Real BetisReal Betis↑ 60′ → 90′00
19 Feb 2021Real Betis 1-0 Getafe CFReal Betis0′ → 90′10
24 Apr 2021Real Madrid CF 0-0 Real BetisReal Betis0′ → 90′00

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

Sergio Canales with other referees

  • Del Cerro Grande22 matches
  • Mateu Lahoz21 matches
  • González González19 matches
  • Jaime Latre16 matches
  • Martínez Munuera16 matches
  • Hernández Hernández15 matches
  • Carlos Velasco Carballo14 matches
  • Gil Manzano12 matches
  • Alfonso Álvarez11 matches
  • Sánchez Martínez11 matches
  • Iglesias Villanueva10 matches