>>5 You do know that they are 2 different people right?
Anyway here are some sites that can help you
http://www.everythingtrackandfield.com/webapp/wcs/stores/servlet/PBOnePieceView?storeId=10152&catalogId=10753&pagename=245
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0ahUKEwiRwOzo55jPAhXBy4MKHcWMAxgQFghTMAg&url=http%3A%2F%2Fwww.livestrong.com%2Farticle%2F336461-how-to-throw-better-in-shot-put-discus%2F&usg=AFQjCNEilwQOLojLhUqoCsqP6COUkh7-4w&sig2=MzuveNd_HI4PEKNthfhZeA
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=32&cad=rja&uact=8&ved=0ahUKEwiviouo6JjPAhUL0IMKHXVrAd84HhAWCCEwAQ&url=http%3A%2F%2Fwww.scottishathletics.org.uk%2Fwp-content%2Fuploads%2F2014%2F04%2FDISCUS-THROW.pdf&usg=AFQjCNFYSzqhn76LGqam_zZ6TFRRSKbDUQ&sig2=Q9a9Gx85QC9O6gyaHoAoQw