Pamakwikwi eOlympic a2012 muLondon, Thoman akahwina menduru yake yokutanga yeOlympic, sirivha, mumakwikwi emamita 100 achimhanya achidzokera kumashure
. Mumakwikwi okupedzisira, Thoman akawana nzvimbo yechipiri shure kwevamwe vake vokuAmerica Matt Grevers vane nguva ye52.92. Akawanawo menduru yegoridhe achishambira gumbo rakanga rakakundwa nechikwata cheU.S. mumatanho okutanga e4 × 100 metres medley relay.