Most participants in a racing event
- Run for the Pasig River
- Philippines Manila
The most participants in a racing event was 116,086 at the Run for the Pasig River in Manila, Philippines, on 10 October 2010. The event consisted of three races: 3 km (1.86 mi), 5 km (3.11 mi), and 10 km (6.21 mi) runs all occuring simultaneously on different routes through the city before converging at the end of each circuit.