Piero Maza

13 games refereed · from 26/02/2026 to 09/09/2026

Copa Libertadores · 8 Copa Sudamericana · 5

Cards per game

4.08

-0.56 vs league average: 4.64

Yellow cards per game

3.54

-0.82 vs league average: 4.36

Red cards per game

0.54

+0.26 vs league average: 0.28

Fouls per game

19.4

-3.09 vs league average: 22.47

Penalties per game

0.23

+0.03 vs league average: 0.20

Totals

13 games

46 yellow · 7 red · 3 penalties

📈 Cards in recent games

bars = cards in the game · line = league average

📊 Frequency

share of games refereed

Games with 5 or more cards46%

Games with a red card31%

Games with a penalty15%

⚖️ Splits

average per game

Cards for the home team 1.922.15 for the away team

Yellow cards in the 1st half 0.622.92 in the 2nd half

in 13 games with cards by half

🏆 By competition

Competition	GP	Cards	League average	Fouls	Penalties
Copa Libertadores	8	4.12	4.60	18.9	0.38
Copa Sudamericana	5	4.00	4.70	20.2	0.00

👥 Teams refereed most

cards received per game

Team	GP	Cards
Boca Juniors	2	1.00
Botafogo	2	1.50
Cerro Porteño	2	2.50
Corinthians	2	0.50
Sporting Cristal	2	3.00
Atlético Junior	1	2.00
Barcelona SC	1	5.00
Bolívar	1	2.00
Club Olimpia	1	2.00
Deportivo Recoleta	1	3.00

📋 Games refereed

cards and fouls add up both teams

Date	Competition	Game			Fouls	Pen.
09/09/26	Copa Sudamericana	Boca Juniors 1 x 0 São Paulo	2	0	13	0
11/08/26	Copa Sudamericana	Boca Juniors 3 x 1 Deportivo Recoleta	2	2	18	0
30/07/26	Copa Sudamericana	Grêmio 0 x 1 Bolívar	4	3	25	0
22/07/26	Copa Sudamericana	Independiente Medellín 2 x 2 Vasco da Gama	2	0	21	0
28/05/26	Copa Libertadores	Cerro Porteño 2 x 0 Sporting Cristal	6	0	27	2
22/05/26	Copa Libertadores	Peñarol 1 x 1 Corinthians	0	0	11	0
08/05/26	Copa Libertadores	Atlético Junior 0 x 1 Cerro Porteño	4	0	23	0
30/04/26	Copa Libertadores	Estudiantes de La Plata 1 x 1 Flamengo	6	0	20	0
16/04/26	Copa Libertadores	Palmeiras 2 x 1 Sporting Cristal	3	0	13	1
10/04/26	Copa Libertadores	Platense 0 x 2 Corinthians	1	1	16	0
11/03/26	Copa Libertadores	Botafogo 0 x 1 Barcelona SC	6	0	14	0
05/03/26	Copa Sudamericana	Sportivo Trinidense 0 x 1 Club Olimpia	4	1	24	0
26/02/26	Copa Libertadores	Botafogo 2 x 0 Nacional Potosí	6	0	27	0

Games since July 2025 in the competitions covered by QueroStats. "League average" = average of all referees in the same competitions, weighted by the games of this referee.
Foto: Carlos Figueroa · CC BY-SA 4.0 · Wikimedia Commons (license).