Karate is not one of the Olympic sports. Taekwondo is an Olympic sport and the US is participating.
Among the latest update since 2012, Modern Olympic Sport composes twenty-four official event that where the Baseball and Softball, were the two them was excluded as event. your question was not related to this answer due to lacking details. If in Case you mention about Modern-Pentathlon, it was the the one of the remaining sport event as official!
The Pentathlon is one of the hardest and longest Olympic events. It means combining 10 different activities into one event.
It was believed that the pentathlon which was a combination of 5 sports
The 2012 Olympic Game features 26 sports and a total of 39 disciplines however cheerleading is not one of the sports. Netball is being drafted as a possible demonstration sport at the 2012 Olympic Game in other words the probability of cheerleading to be the demonstration sport is very low. Cheerleading is not even a sport that recognized by Association of the IOC Recognized International Sports Federations (ARISF) so it is a rumor. CHEELEADING IS A SPORT
The first pentathlon was documented in Ancient Greece and was part of the Ancient Olympic Games. Five events were contested over one day for the Ancient Olympic pentathlon, starting with the long jump, javelin throwing, and discus throwing, followed by the stadion (a short foot race) and wrestling.
one was the javelin from Olivia
No one
One Gold Medal for the Heptathlon at the Olympics and One Silver Medal in 2012 World Indoor Championships Istanbul for the Pentathlon
Olympic Boxing is the only one i think he does
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runninghigh jumplong jump