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Alfonso Pérez Burrull × Iker Casillas

25 matches of Iker Casillas (Real Madrid CF) refereed by Alfonso Pérez Burrull, from 2000-01 to 2009-10.

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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

Alfonso Pérez Burrull refereed 25 Liga matches in which Iker Casillas took part, from 2000-01 to 2009-10: 2,250 minutes played, 0 yellow cards and 0 red cards. With the other referees, over the same seasons (330 matches, 29,632 minutes), Iker Casillas receives 0.04 yellow cards per 90 minutes, against 0.00 with Alfonso Pérez Burrull.

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

25

25 starts · 2,250 minutes · 10 seasons

Yellow cards

0for 1.0 expected

0.00 per 90 minutes with this referee · 0.04 with the others

no clear difference

Red cards

0for 0.1 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 cards00.98−0.0390.631.00no clear difference
Red cards00.08−0.0031.001.00no clear difference

The 25 matches

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

DateMatchTeamMinutesYellowsReds
21 Oct 2000FC Barcelona 2-0 Real Madrid CFReal Madrid CF0′ → 90′00
22 Sept 2001Real Madrid CF 5-1 RCD EspanyolReal Madrid CF0′ → 90′00
17 Nov 2002Real Madrid CF 0-0 Real SociedadReal Madrid CF0′ → 90′00
21 Dec 2002Málaga CF 2-3 Real Madrid CFReal Madrid CF0′ → 90′00
15 Jun 2003Atlético Madrid 0-4 Real Madrid CFReal Madrid CF0′ → 90′00
18 Oct 2003RC Celta de Vigo 0-2 Real Madrid CFReal Madrid CF0′ → 90′00
25 Apr 2004Real Madrid CF 1-2 FC BarcelonaReal Madrid CF0′ → 90′00
11 Sept 2004Real Madrid CF 1-0 CD NumanciaReal Madrid CF0′ → 90′00
9 Jan 2005Atlético Madrid 0-3 Real Madrid CFReal Madrid CF0′ → 90′00
13 Feb 2005CA Osasuna 1-2 Real Madrid CFReal Madrid CF0′ → 90′00
14 May 2005Sevilla FC 2-2 Real Madrid CFReal Madrid CF0′ → 90′00
29 Oct 2005Real Betis 0-2 Real Madrid CFReal Madrid CF0′ → 90′00
18 Dec 2005Real Madrid CF 1-1 CA OsasunaReal Madrid CF0′ → 90′00
16 May 2006Sevilla FC 4-3 Real Madrid CFReal Madrid CF0′ → 90′00
22 Oct 2006Real Madrid CF 2-0 FC BarcelonaReal Madrid CF0′ → 90′00
1 Apr 2007RC Celta de Vigo 1-2 Real Madrid CFReal Madrid CF0′ → 90′00
6 May 2007Real Madrid CF 3-2 Sevilla FCReal Madrid CF0′ → 90′00
31 Oct 2007Valencia CF 1-5 Real Madrid CFReal Madrid CF0′ → 90′00
7 May 2008Real Madrid CF 4-1 FC BarcelonaReal Madrid CF0′ → 90′00
5 Oct 2008Real Madrid CF 2-2 RCD EspanyolReal Madrid CF0′ → 90′00
29 Nov 2008Getafe CF 3-1 Real Madrid CFReal Madrid CF0′ → 90′00
18 Jan 2009Real Madrid CF 3-1 CA OsasunaReal Madrid CF0′ → 90′00
26 Apr 2009Sevilla FC 2-4 Real Madrid CFReal Madrid CF0′ → 90′00
12 Sept 2009RCD Espanyol 0-3 Real Madrid CFReal Madrid CF0′ → 90′00
6 Feb 2010Real Madrid CF 3-0 RCD EspanyolReal 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

Alfonso Pérez Burrull with other players