El ColegiadoData on refereeing in the Liga

Hernández Hernández × Isco

20 matches of Isco (Málaga CF, Real Madrid CF) refereed by Alejandro José Hernández Hernández, from 2012-13 to 2021-22.

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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

Hernández Hernández refereed 20 Liga matches in which Isco took part, from 2012-13 to 2021-22: 1,026 minutes played, 2 yellow cards and 0 red cards. With the other referees, over the same seasons (236 matches, 14,028 minutes), Isco receives 0.13 yellow cards per 90 minutes, against 0.18 with Hernández Hernández.

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

20

10 starts · 1,026 minutes · 9 seasons

Yellow cards

2for 1.4 expected

0.18 per 90 minutes with this referee · 0.13 with the others

no clear difference

Red cards

0for 0.2 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 cards21.39+0.0540.491.00no clear difference
Red cards00.16−0.0140.791.00no clear difference

The 20 matches

Minutes played and cards received by Isco in each match refereed by Hernández Hernández.

DateMatchTeamMinutesYellowsReds
22 Dec 2012Málaga CF 3-2 Real Madrid CFMálaga CF0′ → 90′00
5 Apr 2014Real Sociedad 0-4 Real Madrid CFReal Madrid CF0′ → 81′00
11 May 2014RC Celta de Vigo 2-0 Real Madrid CFReal Madrid CF0′ → 90′00
5 Oct 2014Real Madrid CF 5-0 Athletic BilbaoReal Madrid CF↑ 79′ → 90′00
11 Apr 2015Real Madrid CF 3-0 SD EibarReal Madrid CF0′ → 90′00
29 Aug 2015Real Madrid CF 5-0 Real BetisReal Madrid CF↑ 52′ → 90′00
31 Jan 2016Real Madrid CF 6-0 RCD EspanyolReal Madrid CF0′ → 90′00
23 Apr 2016Rayo Vallecano 2-3 Real Madrid CFReal Madrid CF0′ → 90′00
18 Sept 2016RCD Espanyol 0-2 Real Madrid CFReal Madrid CF↑ 62′ → 90′00
26 Nov 2016Real Madrid CF 2-1 Sporting de GijónReal Madrid CF↑ 81′ → 90′00
9 Sept 2017Real Madrid CF 1-1 Levante UDReal Madrid CF↑ 62′ → 90′00
29 Oct 2017Girona FC 2-1 Real Madrid CFReal Madrid CF0′ → 90′00
10 Feb 2018Real Madrid CF 5-2 Real SociedadReal Madrid CF↑ 62′ → 90′00
18 Dec 2019FC Barcelona 0-0 Real Madrid CFReal Madrid CF0′ → 80′10
22 Feb 2020Levante UD 1-0 Real Madrid CFReal Madrid CF0′ → 73′00
16 Jul 2020Real Madrid CF 2-1 Villarreal CFReal Madrid CF↑ 85′ → 90′10
21 Nov 2020Villarreal CF 1-1 Real Madrid CFReal Madrid CF↑ 65′ → 90′00
23 Jan 2021Deportivo Alavés 1-4 Real Madrid CFReal Madrid CF↑ 77′ → 90′00
28 Aug 2021Real Betis 0-1 Real Madrid CFReal Madrid CF0′ → 66′00
8 Jan 2022Real Madrid CF 4-1 Valencia CFReal Madrid CF↑ 89′ → 90′00

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

Isco with other referees

  • Gil Manzano29 matches
  • Martínez Munuera20 matches
  • Mateu Lahoz18 matches
  • Estrada Fernández17 matches
  • González González17 matches
  • Undiano Mallenco16 matches
  • Carlos Clos Gómez15 matches
  • Iglesias Villanueva14 matches
  • David Fernández Borbalán12 matches
  • Sánchez Martínez12 matches
  • Jaime Latre11 matches