Shot Put Aug 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Olympic Stadium Shot: Made from brass or iron Women: 4kg Men: 7.26kg London Olympics men’s shot put gold medallist Tomasz Majewski (POL) Putting technique: Two styles used in high-level competition Circle: 2.135m wide Spin: Thrower rotates 1½ times Glide: Thrower makes half-turn from rear of circle Toe board: 10cm high Olympic records Ulf Timmermann (GDR) Seoul, 1988 22.47m Ilona Slupianek (GDR) Moscow, 1980 22.41m World records Randy Barnes (USA) Los Angeles, 1990 23.12m Natalya Lisovskaya (URS) Moscow, 1987 22.63m Sources: Rio 2016, Olympic.org, IAAF Pictures: Associated Press, Getty Images