Undie Run

[2] It is reported that the Guinness Book of World Records considers the Undie Run that took place on September 24, 2011, in Salt Lake City, Utah, United States to have had a record number of participants.

[2] There were 2,270 participants in that Undie Run, which was held to protest Utah's conservative laws.

[2] COED Magazine, a magazine in the United States marketed to college students, has reported that Undie Runs are the "number one university sanctioned event".

[3] One of the earliest known Undie Runs was started by student Eric Whitehead[4] at UCLA in the fall of 2001.

[5] Media related to Undie runs at Wikimedia Commons

Cupid's Undie Run, Seattle , 2012
Cupid's Undie Run, Washington DC , 2017