El ColegiadoData on refereeing in the Liga

Martínez Munuera × Sergio Busquets

23 matches of Sergio Busquets (FC Barcelona) refereed by Juan Martínez Munuera, from 2013-14 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

Martínez Munuera refereed 23 Liga matches in which Sergio Busquets took part, from 2013-14 to 2021-22: 1,929 minutes played, 5 yellow cards and 0 red cards. With the other referees, over the same seasons (279 matches, 22,183 minutes), Sergio Busquets receives 0.31 yellow cards per 90 minutes, against 0.23 with Martínez Munuera.

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 · 1,929 minutes · 9 seasons

Yellow cards

5for 6.7 expected

0.23 per 90 minutes with this referee · 0.31 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 cards56.67−0.0780.421.00no clear difference
Red cards00.000.0001.001.00no clear difference

The 23 matches

Minutes played and cards received by Sergio Busquets in each match refereed by Martínez Munuera.

DateMatchTeamMinutesYellowsReds
1 Dec 2013Athletic Bilbao 1-0 FC BarcelonaFC Barcelona0′ → 90′10
15 Feb 2014FC Barcelona 6-0 Rayo VallecanoFC Barcelona0′ → 90′00
27 Sept 2014FC Barcelona 6-0 Granada CFFC Barcelona0′ → 64′00
22 Nov 2014FC Barcelona 5-1 Sevilla FCFC Barcelona0′ → 90′00
18 Jan 2015Deportivo de A Coruña 0-4 FC BarcelonaFC Barcelona0′ → 66′00
21 Feb 2015FC Barcelona 0-1 Málaga CFFC Barcelona0′ → 90′00
11 Apr 2015Sevilla FC 2-2 FC BarcelonaFC Barcelona0′ → 90′10
31 Oct 2015Getafe CF 0-2 FC BarcelonaFC Barcelona0′ → 90′00
10 Dec 2016CA Osasuna 0-3 FC BarcelonaFC Barcelona0′ → 90′00
15 Apr 2017FC Barcelona 3-2 Real SociedadFC Barcelona0′ → 90′00
28 Oct 2017Athletic Bilbao 0-2 FC BarcelonaFC Barcelona0′ → 90′10
10 Mar 2018Málaga CF 0-2 FC BarcelonaFC Barcelona0′ → 90′00
20 Oct 2018FC Barcelona 4-2 Sevilla FCFC Barcelona0′ → 90′00
16 Feb 2019FC Barcelona 1-0 Real ValladolidFC Barcelona0′ → 90′00
31 Aug 2019CA Osasuna 2-2 FC BarcelonaFC Barcelona0′ → 90′00
7 Mar 2020FC Barcelona 1-0 Real SociedadFC Barcelona0′ → 90′10
16 Jun 2020FC Barcelona 2-0 CD LeganésFC Barcelona0′ → 63′00
19 Jul 2020Deportivo Alavés 0-5 FC BarcelonaFC Barcelona0′ → 59′00
24 Oct 2020FC Barcelona 1-3 Real Madrid CFFC Barcelona0′ → 82′00
21 Feb 2021FC Barcelona 1-1 Cádiz CFFC Barcelona0′ → 65′00
21 Aug 2021Athletic Bilbao 1-1 FC BarcelonaFC Barcelona0′ → 90′00
12 Dec 2021CA Osasuna 2-2 FC BarcelonaFC Barcelona0′ → 90′00
20 Mar 2022Real Madrid CF 0-4 FC BarcelonaFC Barcelona0′ → 90′10

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