More than 4,000 climbers with tough soles trotted all the way up the stairs inside the John Hancock Center Sunday morning.
The fastest man to the top was Justin Stewart, of Springfield. He scaled all 94 flights in just 9 minutes 45 seconds. The top woman was Kristin Frey, of Schaumburg, who finished in 10 minutes 57 seconds.
It's truly an event for all ages. This year, the youngest climber is just 5 years old, and the oldest is 86. They helped hustle to raise more than $1.1 million for lung disease research and programs.
Most of the people who take part have been personally affected by lung diseases like asthma, COPD or lung cancer, organizers said.
The average climber takes about 26 minutes get to the top, where cheering supporters and the John Hancock Center mascot are ready with a medal and some high-5s.