El ColegiadoData on refereeing in the Liga

Ortiz Arias × Deportivo Alavés

11 matches of Deportivo Alavés refereed by Miguel Ángel Ortiz Arias, from 2021-22 to 2025-26.

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In short

Ortiz Arias has refereed 11 Liga matches of Deportivo Alavés, from 2021-22 to 2025-26: 5 wins, 1 draws and 5 defeats, a 45% win rate. With other referees, over the same seasons, Deportivo Alavés wins 25% of its matches.

  • Penalties won per match0.22opponents: 0.00 · with other referees: 0.19
  • Yellow cards received per match2.64opponents: 1.45 · with other referees: 2.46

Verdict: no clear difference once team strength is taken into account.

Once the strength of both teams is taken into account (using bookmakers' odds), the data show no clear difference with this referee.

Win rates do not account for the strength of opponents; the conclusion does.

Deportivo Alavés

Ortiz Arias

Deportivo Alavés

no clear differencesmall sample

Record

11matches

5 W1 D5 L

For / against, per match

Deportivo Alavés against its opponents, with Ortiz Arias

0.22
Penalties won
0.00
2.64
Yellows received
1.45
0.18
Reds received
0.09
13.5
Fouls called against
11.3
For experts: statistical tests and method

Comparison with bookmakers' odds, corrected p-values and appointments. Nothing is hidden: the full detail is here.

No clear difference does not mean "no effect": with 11 matches, only a deviation of about ±1.57 points per match could have been detected.

Points − expected points

+4.6pts over 11 matches

16 points obtained for 11.4 expected from the odds, i.e. +0.415 per match.

Points distribution from the odds

If only the odds mattered, over these 11 matches

Points obtained

16

Expected (odds)

11.4

Deviation

+4.6

two-sided p

0.31

Expected 11.4 ± 3.9 pts · probability of a deviation at least this large, in either direction: 31%.

Tests on the 5 measures

Deviation per match, raw p and corrected q (Benjamini-Hochberg, all pairs)

MeasureDeviationpqVerdict
Points − expected+0.4150.301.00no clear difference
Penalty balance+0.2350.341.00no clear difference
Red-card balance−0.1120.611.00no clear difference
Yellow-card balance−1.0100.081.00no clear difference
Foul balance−0.5500.761.00no clear difference

Appointments

The club's matches assigned to this referee, observed vs expected

Observed

11

Expected

12.5

p / q

0.81 / 1.00

no clear difference Seasons without a known referee for every match are not counted.

Matches per season

Number of matches (bars) and the season's points − expected deviation (hover)

Matches

The 11 matches

From Deportivo Alavés's point of view.

Date
Season2025-26
home Real Betis
ScoreW2–1
Pen. for–against—
Yellows received–opp.1–1
Reds received–opp.0–0
Date
Season2025-26
away FC Barcelona
ScoreL1–3
Pen. for–against0–0
Yellows received–opp.3–2
Reds received–opp.0–0
Date
Season2025-26
home Elche CF
ScoreW3–1
Pen. for–against1–0
Yellows received–opp.3–1
Reds received–opp.0–1
Date
Season2025-26
away Real Betis
ScoreL0–1
Pen. for–against—
Yellows received–opp.3–2
Reds received–opp.0–0
Date
Season2024-25
away Sevilla FC
ScoreD1–1
Pen. for–against0–0
Yellows received–opp.2–2
Reds received–opp.0–0
Date
Season2024-25
home Villarreal CF
ScoreW1–0
Pen. for–against0–0
Yellows received–opp.3–1
Reds received–opp.2–0
Date
Season2024-25
home FC Barcelona
ScoreL0–3
Pen. for–against0–0
Yellows received–opp.2–2
Reds received–opp.0–0
Date
Season2023-24
away UD Almería
ScoreW3–0
Pen. for–against1–0
Yellows received–opp.2–1
Reds received–opp.0–0
Date
Season2021-22
home Villarreal CF
ScoreW2–1
Pen. for–against0–0
Yellows received–opp.5–2
Reds received–opp.0–0
Date
Season2021-22
home Real Betis
ScoreL0–1
Pen. for–against0–0
Yellows received–opp.1–1
Reds received–opp.0–0
Date
Season2021-22
away Valencia CF
ScoreL0–3
Pen. for–against0–0
Yellows received–opp.4–1
Reds received–opp.0–0
11 rows