Given the question: What key details about neville hayes  can be extracted from the following bio?  Bio: neville ronald hayes -lrb- born 2 december 1943 -rrb- is an australian former butterfly swimmer of the 1960s , who won two silver medals at the 1960 summer olympics in rome , in the 200-metre butterfly and the 4x100-metre medley relay . hailing from hurstville in southern sydney , hayes set world records in both the 110-yard and 220-yard butterfly in the lead-up to the 1960 games . however , the 100-metrem butterfly was not contested as an individual event in that era . hayes was aiming for success in the 200-metre butterfly , but came up against the united states ' michael troy . although hayes improved his personal best by three seconds in the final , troy was a further two seconds ahead , and broke his own world record . hayes claimed the silver , with fellow australian kevin berry in sixth place . hayes then combined with david theile , terry gathercole and geoff shipton to claim a silver medal in the 4x100-metre medley relay , the first time the event was held at the olympics , again behind the american team . in 1962 , hayes was usurped as australia 's leading butterflier when berry defeated him at a dual meet between australia and japan . later that year at the empire games in perth , western australia , berry defeated hayes into silver the 100-metre butterfly by almost three seconds . berry repeated the result in the 200-metre event , beating hayes by 5.5 s . he graduated from harvard university with bachelor of arts in 1967 , and from harvard business school with an mba in 1969 . while attending harvard as an undergraduate , he swam for the harvard crimson swimming and diving team from 1964 to 1967 , and received all-american honours in his signature event , the 200-yard butterfly .
The answer is:
- weight is 80 kg lb on- height is 1.83 m ftin on- strokes is butterfly , medley- birth date is 2 december 1943- fullname is neville ronald hayes- name is neville hayes- birth place is hurstville , new south wales- collegeteam is harvard university