Khamzat Chimaev's previously undefeated record has been broken following a split decision loss to Sean Strickland at UFC 328. Chimaev had been 15-0 before this defeat, making him one of the top undefeated fighters in major MMA organizations. The post is part of an updated list tracking active fighters with more than ten wins who have never lost and compete in leading promotions. Chimaev's loss removes him from the exclusive list of undefeated fighters. Other fighters on the updated list include Movlid Khaybulaev at 24-0-1-1NC and Usman Nurmagomedov at 21-0-1NC.
Khamzat Chimaev's perfect record came to an end on May 9, 2026, when Sean Strickland claimed a split decision victory at UFC 328, handing "Borz" the first loss of his professional career.
Chimaev, 32, had entered the fight as the number-one-ranked middleweight and the number-ten pound-for-pound fighter in the world, carrying a flawless 15-0 record that had made him one of the most feared undefeated prospects in major MMA. Fighting out of Allstars Training Center and representing the United Arab Emirates, the six-foot-two, 188-centimeter wrestler had built his reputation on overwhelming opponents with a ferocious grappling game, averaging 5.29 takedowns per fifteen minutes alongside a striking accuracy of 60 percent. That unblemished slate is now gone, his record moving to 15-1.
Strickland, meanwhile, continues to cement his standing at the top of the middleweight division. The 35-year-old American, training out of Xtreme Couture, holds a 31-7 record and is the current middleweight champion. Standing six-foot-one with a 76-inch reach, "Tarzan" is a high-volume striker who lands 6.04 significant strikes per minute. The split decision nature of the result underlines just how competitive the contest was.
Why it matters
- Chimaev's loss ends one of the most closely watched undefeated runs in recent middleweight history and removes him from the short list of active fighters with ten-plus wins and no defeats in major promotions.
- Strickland's successful title defense strengthens his grip on the 185-pound division.
- The number-one contender ranking Chimaev held will now be up for reassignment, reshuffling the entire middleweight picture.
- Fellow undefeated fighters Movlid Khaybulaev (24-0-1, one no-contest) and Usman Nurmagomedov (21-0, one no-contest) now stand as the most prominent names remaining on that exclusive list.
Saturday, May 9, 2026
