Please answer the following question: What key details about dennis to  can be extracted from the following bio?  Bio: dennis to yu-hang -lrb- born 1 january 1981 -rrb- is a hong kong martial artist and actor . he started his career as a wushu practitioner and won several awards at various competitions , including a silver medal at the 2002 asian games and a gold medal at the 2005 east asian games . to became an actor in 2007 and started off by playing minor roles in `` ip man '' -lrb- 2008 -rrb- , `` bodyguards and assassins '' -lrb- 2009 -rrb- and `` ip man 2 '' -lrb- 2010 -rrb- . he is best known for his role as the wing chun grandmaster ip man in the 2010 film `` the legend is born -- ip man '' .
A:
- pinyinchinesename is dù yǔháng- jyutpingchinesename is dou6 jyu5-hong4- yearsactive is 2007 -- present- chinesename is 杜宇航- othername is to yu-hang , to yu hang- birth date is 1 january 1981- name is dennis to- birth place is hong kong- ancestry is xiqiao , guangdong , china- occupation is actor , martial artist