A group of runners waiting at the start line of the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
A group of runners waiting at the start line of the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
Runners take off as the 99th Annual Bay To Breakers gets underway. (CBS)
2010 Bay To Breakers
A group of runners waiting at the start line of the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
A group of costumed participants celebrates the start of the 99th Annual Bay To Breakers. (CBS)
2010 Bay To Breakers
A man wearing a carrot costume takes part in the Bay to Breakers. (CBS)
2010 Bay To Breakers
Participants of the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
Participants wearing Conehead costumes taking part in the of the 99th Annual Bay To Breakers. (CBS)
2010 Bay To Breakers
Alcohol bottles on a street as a strict ban on alcohol containers rule was enforced during the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
Participants dressed in suits during the 99th Annual Bay To Breakers in San Francisco. (CBS)
2010 Bay To Breakers
A San Francisco Police officer enforces the ban on alcohol during the 99th annual Bay to Breakers in San Francisco. (CBS)
2010 Bay To Breakers
A San Francisco Police officer confiscates a can of beer during the 99th annual Bay to Breakers in San Francisco. (CBS)
2010 Bay To Breakers
Participants of the 99th Annual Bay To Breakers in San Francisco. (CBS)
2009 Bay To Breakers
Participants run up Hayes Street Hill with the backdrop of the city's 'Painted Ladies' houses during the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Participants run up Hayes Street Hill with the backdrop of the city's 'Painted Ladies' houses during the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Participants run up Hayes Street Hill with the backdrop of the city's 'Painted Ladies' houses during the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Participants run up Hayes Street Hill during the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners, some wearing costumes, take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Nude participants take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
A runner wearing a costume takes part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners and spectators wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners and spectators wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
A costumed runner comes out of the toilets during the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
A runner wearing a costume takes part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Runners wearing costumes take part in the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)
2009 Bay To Breakers
Two participants, one in costume, walk through a parking lot to get to the start of the ING Bay to Breakers race May 17, 2009 in San Francisco. (Ezra Shaw/Getty Images)