<prompt> Pamakwikwi eOlympic a2012 muLondon, Beisel akapedza nguva ya4:31.68 mumakwikwi okutanga emamita 400  <response>: . Akanga ari wekutanga kuenda kumagumo, uye akagamuchira menduru yesirivheri yekupedza wechipiri kuseri kweChina Ye Shiwen nenguva ye4: 31.27 kuna Yes 4: 28.46. Akakundawo menduru yendarira nokuva wechitatu mumakwikwi emamita 200 achimhanya achidzoka kumashure nenguva ya2:06.55, achitevera Missy Franklin wokuAmerica uye Anastasia Zuyeva wokuRussia. 