In fencing, a black card is the harshest possible penalty for breaking a serious rule. It calls for the fencer to automatically withdraw from not only the current match, but the entire competition.

For certain offenses, a red card is given on the first instance and a black card is reserved for the second. The most serious offenses, though, carry with them the penalty of a black card on the very first offense.

The most common things a fencer could do to earn a black card include unsportsmanlike conduct, deliberate brutality, and outright cheating.

See the Fencing Penalty Chart for more info.