Grey's Anatomy's Patrick Dempsey's Dempsey Challenge image

Patrick Dempsey (

Cycling fundraiser.

Thousands of cyclists from all over the world turned out on Sunday October 14 for "Grey's Anatomy's" Patrick Dempsey's (Derek Shepherd) annual cancer fundraiser the Dempsey Challenge. 4,200 riders helped raise about $1.2 million for the Patrick Dempsey Center For Cancer, Hope and Healing at Central Maine Medical Center, according to the Bangor Times. Dempsey, whose mother battled cancer, attended the race and rode in the 50-mile event as well. congratulates Dempsey on the successful fundraising effort.

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- Candace Young