In fencing, a red card is a penalty touch--when a fencer receives a red card, his opponent gains a point.

For less serious offenses, a red card is only given after a fencer has already received a yellow card earlier in the bout. Thereafter, a red card is given for each time that fencer breaks a rule in that group. For other penalties, a red card is given on the first offense and on each additional offense. For yet other penalties, a red card is given only on the first offense, and on the second that fencer receives a black card.

The most common things a fencer can do to earn a red card (on the first offense) include the absence of weapon inspection marks, disturbing order on the strip, and refusal to salute one's opponent before the start of the bout.

See the Fencing Penalty Chart for more info.