by Duncan Larkin, Published Jul. 24, 2012, Updated Jul. 24, 2012 at 12:03 PM UTC
Additional celebrities expected to enter in the coming weeks.
by Duncan Larkin, Published May. 8, 2012, Updated May. 8, 2012 at 9:52 AM UTC
She completed her first marathon in March.
by Duncan Larkin, Published Dec. 9, 2010, Updated Dec. 9, 2010 at 11:32 AM UTC
The weight-loss show apparently cut out a lot of the tediousness required to run 26.2 miles.
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