Chimaev's undefeated streak ends with split decision loss at UFC 328

The list of active undefeated fighters with 10+ wins in major promotions has been updated following UFC 328. Hamzat Chimaev, who held a 15-0 record, suffered his first career loss via split decision to Sean Strickland at UFC 328. The comprehensive list tracks fighters who haven't competed in over two years or retired, with records verified through Tapology and Sherdog. Chimaev's loss removes him from the elite group of undefeated fighters competing in top organizations. Other notable changes include Baisangur Susurkaev improving to 12-0 with a submission victory at UFC 328, and Alikhan Musaev joining the list at 11-0 after a decision win at ACA 203.