<prompt> Pedzisa mutsara unotevera: Pamakwikwi eOlympics yeZhizha ya2012 muLondon, Beisel akaisa nguva ya4:31.68 mumakwikwi okutanga  <response>: 400-metre medley yomunhu oga. 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. 