presentation After each Olympic event is completed, a medal ceremony is held. The Summer Games usually conduct medal ceremonies immediately after the event at the respective venues. Winter editions, however, would present the medals at a nightly victory ceremony held at a medal plaza, excluding the indoor and specific events. This is because due to the altitude of some Winter events, presenting medals may be difficult in said environments. A three–tiered rostrum is used for the three medal winners, with the gold medal winner ascending to the highest platform, in the centre, with the silver and bronze medalists flanking. The medals are awarded by a member of the IOC. The IOC member is usually accompanied by a person from the sports federation governing the sport (such as IAAF in athletics or FINA in swimming), who presents each athlete with a small bouquet of flowers. When the Games were held in Athens in 2004, the medal winners also received olive wreaths in honor of the tradition at the Ancient Olympics. At the 2016 Summer Olympics, for the first time in history, the flowers were replaced by a small 3D model of the Games' logo. At the 2018 Winter Olympic Games, the flowers were replaced by a special version of the plush toy of the mascot dressed in historical Korean clothing. After medals are distributed, the flags of the nations of the three medalists are raised. The flag of the gold medalist's country is in the centre and raised the highest while the flag of the silver medalist's country is on the left facing the flags and the flag of the bronze medalist's country is on the right, both at lower elevations than the gold medalist's country's flag. Should there have been multiple athletes tied for gold medal (as it was the case for examples like the two gold medalists for men's high jump at the 2020 Summer Olympics), the national anthems (if from multiple NOCs) will be played in the alphabetical order according to the medalists' surnames. The flags are raised while the national anthem of the gold medalist's country plays. Citizens of the host country also act as hosts during the medal ceremonies. They aid the officials who present the medals and act as flag bearers. Strict rules govern the conduct of athletes during the medal ceremony. For example, they are required to wear only pre-approved outfits that are standard