Arrowhead Stadium can get as loud as a jet engine. It was proven in September 2014 when the stadium recorded a 142.2-decibel level, setting a world record for the loudest outdoor crowd roar at an open-air stadium on the planet.

The 76,613 fans in attendance set the record in the first half while the team was on defense against the New England Patriots. The record shattered the previous record of 137.6 decibels set by the Seattle Seahawks at CenturyLink Field in 2013.

That level has not been passed since, but fans still bring it every Chiefs home game.

“Whenever you can go out in pregame warmups and feed on the energy because the fans are there packing the stadium that early, it truly is special,” Patrick Mahomes explained. “We feed off that the entire game. There’s not an empty seat in the stands.”

This environment began when Carl Peterson and Marty Schottenheimer came to the organization in 1989. Tailgating became an integral part of every home game, building up toward the game.

Arrowhead is built in a way that all the noise erupts down onto the field.

“My hat goes off to them,” Chiefs head coach Andy Reid said of the fans. “They’re the best in the NFL. It’s great to be a part of.”

Arrowhead isn’t the only place that can get loud.

About 50 miles west of Arrowhead, in nearby Lawrence, Kansas, Allen Fieldhouse set a world record for the loudest crowd roar during an indoor sporting event. A crowd of 16,300 hit 130.4 decibels in 2017 during a University of Kansas men’s basketball contest against West Virginia.

Sporting KC fans also topped 100 decibels during a playoff game in 2013. Kansas City isn’t just a sports town, it is a loud sports town.