Answer the following question: Facts:   - sport: athletics    - caption: cor vriend in 1980    - height: 1.73 m ftin on      - club: hpac , helmond    - birth date: 8 november 1949    - weight: 65 kg lb on    - image size: 220px    - image: cor vriend 1980b.jpg    - birth place: eindhoven , the netherlands   Based on these bullet points, write a short biography describing the life of cor vriend .
Answer:
cornelis -lrb- `` cor '' -rrb- wilhelmus pieter vriend -lrb- born 8 november 1949 -rrb- is a former long-distance runner from the netherlands , who mainly competed in the marathon .he participated in two consecutive summer olympics for his native country ; in 1980 -lrb- moscow , 41st place -rrb- and 1984 -lrb- los angeles , 39th place -rrb- .during the early 1980s he was overshadowed by his fellow countryman gerard nijboer .vriend twice won the amsterdam marathon , in 1983 and 1984 .he also won the enschede marathon in 1981 and the beppu-Ōita marathon in japan in 1984 .he is the dutch record holder for the relatively obscure 25,000 m and 30,000 m track events , both of which he set on 22 august 1981 .