For some, running the Zazzle Bay to Breakers is more than just fun -- it's a challenge. Click on the photo at right to view a slideshow of some of the more serious contenders of the day.
Get Digital Edition
More By Julia Chan
- SLIDESHOW: A look back into Bay to Breakers past
- SLIDESHOW: Snapshots from 2010 Bay to Breakers up and running
- 100th Bay to Breakers race older, wiser, less drunk and disorderly
- SLIDESHOW: More than 50,000 runners, walkers show up for 101st Bay to Breakers
- Photo reunites man with woman who saved his life at Bay to Breakers