ChileMatches analysed: 242023–2026Piero Maza · CONMEBOL Libertadores: referee stats
Piero Maza (Chile) has shown 5.29 cards per game in 24 analysed matches — +2% compared with the average of the same leagues. Profile: average.
Average · +2%Upcoming matches with Piero Maza
Referee radar
Percentile among 2957 referees with at least 15 matches; 50 = typical referee. Each axis compares the referee with the average of the leagues where this referee officiates.
Cards per match (last 20 matches)
Last matches refereed by Piero Maza
| Date | Match | Score | Cards (home–away) | Fouls | Pen. |
|---|---|---|---|---|---|
| Fri 8 May | Junior – Cerro PortenoCONMEBOL Libertadores | 0:1 | 4 | 23 | 0 |
| Wed 11 Mar | Botafogo – Barcelona SCCONMEBOL Libertadores | 0:1 | 6 | 14 | 0 |
| Thu 26 Feb | Botafogo – Nacional PotosíCONMEBOL Libertadores | 2:0 | 6 | 27 | 0 |
| Thu 30 Oct | Racing Club – FlamengoCONMEBOL Libertadores | 0:0 | 4 | 17 | 0 |
| Fri 26 Sept | Estudiantes L.P. – FlamengoCONMEBOL Libertadores | 1:0 | 2 | 17 | 0 |
| Fri 22 Aug | Palmeiras – UniversitarioCONMEBOL Libertadores | 0:0 | 2 | 23 | 0 |
| Wed 13 Aug | Cerro Porteno – Estudiantes L.P.CONMEBOL Libertadores | 0:1 | 5 | 22 | 1 |
| Tue 27 May | Sao Paulo – Talleres CordobaCONMEBOL Libertadores | 2:1 | 5 | 16 | 0 |
| Thu 15 May | Club Nacional – InternacionalCONMEBOL Libertadores | 0:2 | 3 | 21 | 0 |
| Wed 9 Apr | Olimpia – Velez SarsfieldCONMEBOL Libertadores | 0:4 | 5 | 26 | 1 |
| Thu 3 Apr | Bahia – InternacionalCONMEBOL Libertadores | 1:1 | 4 | 17 | 0 |
| Wed 5 Mar | FBC Melgar – Cerro PortenoCONMEBOL Libertadores | 0:1 | 3 | 21 | 1 |
| Wed 26 Feb | Boca Juniors – Alianza LimaCONMEBOL Libertadores | 2:1 | 8 | 15 | 0 |
| Thu 13 Feb | Alianza Lima – Nacional AsuncionCONMEBOL Libertadores | 3:1 | 5 | 28 | 0 |
| Thu 31 Oct | Penarol – BotafogoCONMEBOL Libertadores | 3:1 | 9 | 24 | 0 |
How the numbers are calculated
Cards = yellow and red cards shown to players during 90 minutes (a second yellow counts as a yellow plus a red, as most bookmakers settle). Cards for coaches and substitutes on the bench and cards in extra time are excluded. Penalties = penalties awarded during the match (shoot-outs excluded). “vs league” compares the referee with the average of the exact league seasons this referee worked, so a referee from a card-heavy league is not called strict just because of the league.
Data: official match events and statistics (API-Sports), updated daily.
Frequently asked questions
How many cards does Piero Maza give per game?
On average 5.29 cards per game in 24 analysed matches (league average in the same competitions: 5.18).
Is Piero Maza a strict referee?
Compared with the leagues where Piero Maza officiates, the card count is +2% – profile: average. A red card appeared in 13% of these matches.
How often do matches with Piero Maza go over 4.5 cards?
Over 4.5 cards in 67% of matches and over 3.5 cards in 79%. Both teams were booked in 96%.
Does Piero Maza give many penalties?
A penalty was awarded in 17% of matches refereed by Piero Maza.