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Rick George, head of athletics for CU, fires the starting gun for waves of runners at the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Waves of runners take off from the start line of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Beloved CU super fan Peggy Coppom, 100, cheers for the runners at the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Participants in the wheelchair division get ready to take part in the race on the starting line on 30th street in the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Ryder Searle, wearing a bacon outfit, center and Steven Goldy, wearing a banana outfit, put their hands over their hearts during the singing of the National Anthem before the start of the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Patrick Ritsko stretches before the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners came dressed in costumes of all kinds to take part in the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Dave McLoughlin plays the trumpet just before runners take off in each wave at the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. McLoughlin has played the trumpet for the start of the race for over 20 years. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Chip the Buffalo, CU鈥檚 mascot, high fives runners as they take off from the start the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Eric Gustafso, Guitarist and singer for the bluegrass band Timber, plays with members of his band as runners make their way north on 30th street near the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners wearing pink tutus jump on a trampoline set up along the course of the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Kaya Fountain, 17, does a back flip on a trampoline set up along the course of the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners make their way north on 30th street at the start of the Bolder Boulder citizen鈥檚 race along 30th street in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners came dressed in costumes of all kinds to take part in the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners, dressed in costumes, leap over a puddle to try and stay dry as they take part in the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Harli Kurdelmeyer, center, and her friends use squirt guns to shoot small amounts of tequila into the mouths of willing runners taking part in Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Pierce Holloway, right and his friends use squirt guns to shoot small amounts of tequila into the mouths of willing runners taking part in Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

A man carries a young girl on his shoulders as the two take part in the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Chad Pettrone, left, his son Adrian, 6, center, and daughter Aviana, 2, high five runners who are taking part in the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Chad Pettrone and his children Adrian, 6, center, and Aviana, 2, left, high five runners who are taking part in the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Emily Enders, center and her friend Elizabeth Kaffenberger, left, hold up encouraging signs for runners along Folsom Street during the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Thousands of runners make their way up Folsom Street heading towards Folsom Stadium to finish the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Tilly Steinbach, 11, left, holds a sign for her mother Nicole who gets a congratulatory kiss from her husband Dominik, right, as she nears the finish line along Stadium drive near Folsom Stadium to finish the Bolder Boulder citizen鈥檚 race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners in the women鈥檚 pro race take off from the start line near Taft Drive and Folsom street in the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Runners in the men鈥檚 pro race take off from the start line near Taft Drive and Folsom street in the Bolder Boulder race in Boulder, Colorado on May 26, 2025. This year marks the 45th year of the popular road race. Officials said 1.5 million runners have crossed the finish line since the race started in 1979. 52,000 runners took part in this year鈥檚 race. (Photo by Helen H. Richardson/The Denver Post)

Two runners place their hands over their hearts as they listen to the singing of the National Anthem during memorial day ceremonies that are part of the Bolder Boulder race in Boulder, Colorado on May 26, 2025. (Photo by Helen H. Richardson/The Denver Post)