Fans at Arrowhead Stadium break the Guiness world record for loudest outdoor open air stadium as the noise hits 137.5 decibels during the Kansas City Chiefs Week 6 game against the Oakland Raiders.

Seattle Seahawks fans have a record to reclaim, and science offers a few clues about how to do it. The Kansas City Chiefs took the Guinness World Records title for loudest crowd roar at a sports ...

This week on Sunday Night Football, the defending Super Bowl champs take on the unbeaten Chiefs in primetime.

The Chiefs' new stadium is set to open in 2031. Rendering via Chiefs and MANICA The Kansas City Chiefs released initial renderings Wednesday of their new $3 billion domed stadium in Kansas, which is ...