El ColegiadoData on refereeing in the Liga

David Fernández Borbalán × Sergio Ramos

22 matches of Sergio Ramos (Real Madrid CF) refereed by David José Fernández Borbalán, from 2005-06 to 2017-18.

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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

David Fernández Borbalán refereed 22 Liga matches in which Sergio Ramos took part, from 2005-06 to 2017-18: 1,888 minutes played, 9 yellow cards and 1 red cards. With the other referees, over the same seasons (336 matches, 29,351 minutes), Sergio Ramos receives 0.38 yellow cards per 90 minutes, against 0.43 with David Fernández Borbalán.

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

22

22 starts · 1,888 minutes · 12 seasons

Yellow cards

9for 7.8 expected

0.43 per 90 minutes with this referee · 0.38 with the others

no clear difference

Red cards

1for 1.0 expected

0.05 per 90 minutes with this referee · 0.05 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 cards97.82+0.0560.551.00no clear difference
Red cards11.02−0.0010.791.00no clear difference

The 22 matches

Minutes played and cards received by Sergio Ramos in each match refereed by David Fernández Borbalán.

DateMatchTeamMinutesYellowsReds
26 Oct 2005Deportivo de A Coruña 3-1 Real Madrid CFReal Madrid CF0′ → 90′00
8 Apr 2006Real Madrid CF 1-1 Real SociedadReal Madrid CF0′ → 90′10
21 Jan 2007RCD Mallorca 0-1 Real Madrid CFReal Madrid CF0′ → 59′10
26 May 2007Real Madrid CF 3-1 Deportivo de A CoruñaReal Madrid CF0′ → 90′00
15 Nov 2008Real Valladolid 1-0 Real Madrid CFReal Madrid CF0′ → 90′00
7 Mar 2009Real Madrid CF 1-1 Atlético MadridReal Madrid CF0′ → 90′00
25 Mar 2010Getafe CF 2-4 Real Madrid CFReal Madrid CF0′ → 90′00
29 Aug 2010RCD Mallorca 0-0 Real Madrid CFReal Madrid CF0′ → 90′00
9 Jan 2011Real Madrid CF 4-2 Villarreal CFReal Madrid CF0′ → 90′00
26 Feb 2011Deportivo de A Coruña 0-0 Real Madrid CFReal Madrid CF0′ → 90′00
10 Dec 2011Real Madrid CF 1-3 FC BarcelonaReal Madrid CF0′ → 90′10
26 Feb 2012Rayo Vallecano 0-1 Real Madrid CFReal Madrid CF0′ → 90′10
24 Sept 2012Rayo Vallecano 0-2 Real Madrid CFReal Madrid CF0′ → 90′00
17 May 2014Real Madrid CF 3-1 RCD EspanyolReal Madrid CF0′ → 90′00
22 Nov 2014SD Eibar 0-4 Real Madrid CFReal Madrid CF0′ → 73′10
21 Nov 2015Real Madrid CF 0-4 FC BarcelonaReal Madrid CF0′ → 90′10
13 Mar 2016UD Las Palmas 1-2 Real Madrid CFReal Madrid CF0′ → 90′11
8 May 2016Real Madrid CF 3-2 Valencia CFReal Madrid CF0′ → 90′00
10 Sept 2016Real Madrid CF 5-2 CA OsasunaReal Madrid CF0′ → 90′10
1 Mar 2017Real Madrid CF 3-3 UD Las PalmasReal Madrid CF0′ → 90′10
15 Apr 2017Sporting de Gijón 2-3 Real Madrid CFReal Madrid CF0′ → 90′00
18 Nov 2017Atlético Madrid 0-0 Real Madrid CFReal Madrid CF0′ → 46′00

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

Sergio Ramos with other referees