El ColegiadoData on refereeing in the Liga

Pérez Lasa × Iker Casillas

23 matches of Iker Casillas (Real Madrid CF) refereed by Miguel Ángel Pérez Lasa, from 2000-01 to 2012-13.

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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

Pérez Lasa refereed 23 Liga matches in which Iker Casillas took part, from 2000-01 to 2012-13: 2,070 minutes played, 0 yellow cards and 0 red cards. With the other referees, over the same seasons (422 matches, 37,816 minutes), Iker Casillas receives 0.04 yellow cards per 90 minutes, against 0.00 with Pérez Lasa.

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

23 starts · 2,070 minutes · 13 seasons

Yellow cards

0for 0.9 expected

0.00 per 90 minutes with this referee · 0.04 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 cards00.93−0.0410.571.00no clear difference
Red cards00.18−0.0081.001.00no clear difference

The 23 matches

Minutes played and cards received by Iker Casillas in each match refereed by Pérez Lasa.

DateMatchTeamMinutesYellowsReds
12 Nov 2000Real Madrid CF 5-1 UD Las PalmasReal Madrid CF0′ → 90′00
3 Feb 2002RCD Espanyol 2-1 Real Madrid CFReal Madrid CF0′ → 90′00
15 Dec 2002Real Madrid CF 4-2 Recreativo de HuelvaReal Madrid CF0′ → 90′00
27 Apr 2003Sevilla FC 1-3 Real Madrid CFReal Madrid CF0′ → 90′00
5 Oct 2003Real Madrid CF 2-1 RCD EspanyolReal Madrid CF0′ → 90′00
23 Oct 2004Real Madrid CF 1-0 Valencia CFReal Madrid CF0′ → 90′00
22 Dec 2004Real Madrid CF 0-1 Sevilla FCReal Madrid CF0′ → 90′00
29 May 2005Real Zaragoza 1-3 Real Madrid CFReal Madrid CF0′ → 90′00
28 Aug 2005Cádiz CF 1-2 Real Madrid CFReal Madrid CF0′ → 90′00
19 Mar 2006Real Madrid CF 0-0 Real BetisReal Madrid CF0′ → 90′00
5 Nov 2006Real Madrid CF 1-2 RC Celta de VigoReal Madrid CF0′ → 90′00
17 Dec 2006RCD Espanyol 0-1 Real Madrid CFReal Madrid CF0′ → 90′00
21 Apr 2007Real Madrid CF 2-1 Valencia CFReal Madrid CF0′ → 90′00
27 Sept 2007Real Madrid CF 2-0 Real BetisReal Madrid CF0′ → 90′00
21 Sept 2008Racing de Santander 0-2 Real Madrid CFReal Madrid CF0′ → 90′00
24 Jan 2010Real Madrid CF 2-0 Málaga CFReal Madrid CF0′ → 90′00
15 Apr 2010UD Almería 1-2 Real Madrid CFReal Madrid CF0′ → 90′00
4 Dec 2010Real Madrid CF 2-0 Valencia CFReal Madrid CF0′ → 90′00
16 Jan 2011UD Almería 1-1 Real Madrid CFReal Madrid CF0′ → 90′00
3 Mar 2011Real Madrid CF 7-0 Málaga CFReal Madrid CF0′ → 90′00
23 Apr 2011Valencia CF 3-6 Real Madrid CFReal Madrid CF0′ → 90′00
26 Oct 2011Real Madrid CF 3-0 Villarreal CFReal Madrid CF0′ → 90′00
26 Aug 2012Getafe CF 2-1 Real Madrid CFReal Madrid CF0′ → 90′00

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

Iker Casillas with other referees