<prompt> Ngwala tšwetšopele ya serapa se - The Mens scratch at the 2012 UCI Track Cycling World Championships  <response>: e ile ya swarwa ka April 4. Bo-ramabelo ba 21 ba ile ba tšea karolo lebelong la go betha. Phadišano e be e e-na le dikhutlo tše 60, e dira palo-moka ya dikhilomithara tše 15. 