Undie run participant dresses up as a pink gorilla. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Undie run participants preparing right before the start of the race. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Undie run participants dancing before the race. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Undie run participants looking through their selfies. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
An undie run participant break dancing prior to the race. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
An undie run participant trying to fix her hair before the race starts. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Boxes of Voodoo doughnuts being distributed to the undie run participants. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Participants being cheered on by fellow volunteers. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
On The Rocks member participates in the undie run. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
A local DJ sets the tone for the undie run after party. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
An undie run participant rushes to the finish line. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
An undie run participant enjoying the day out in the sun prior to the race. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Undie run participants posing at the camera. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)
Natsumi Seki
A local DJ sets the tone for the undie run after party. The Emerald Media Group hosted an undie run on the University of Oregon campus in Eugene, Oregon on Thursday, May 28, 2015. (Natsumi Seki/Emerald)