Rudolf Pěnkava
Pěnkava also competed in two Summer Olympics , earning his best finish of eighth in the C-2 1000 m event at Tokyo in 1964 . 
<triplet> Summer Olympics <subj> 1964 <obj> has part <triplet> 1964 <subj> Summer Olympics <obj> instance of <subj> Tokyo <obj> location <subj> 1964 <obj> point in time