Most participants in a race (single venue)
- Who
- Unknown
- What
- 78769 people
- When
- 01 January 0001
On 15 May 1986 a registered 78,769 runners ran in the Examiner Bay to Breakers 12.2km (7.6 mile) race in San Francisco, California, USA. An estimated 110,000 total participants (including unregistered runners) took part.