The winners receive gold medals, which were solid gold until 1912, later made of gilded silver, and now gold-plated silver. However, every gold medal must contain at least six grams of pure gold.[249] The runners-up receive silver medals and the third-place athletes are awarded bronze medals. In events contested by a single-elimination tournament (most notably boxing), third place might not be determined and the losers of both semi-finals each receive a bronze medal.