Records -> Sports & Games -> Water Sports -> Swimming Relay, Most Participants, One Length Each, 24 Hrs
The most participants to swim one length each in a 24 hour relay is 3,941 and was set by Saint Mary's DSG PUREhealth (South Africa) from 23-24 January 2009 in Gauteng, South Africa.
The record was a fundraiser for Saint Mary's DSG school.