The ninth episode of The Ultimate Fighter 21 debuted last night on Fox Sports 1 and featured Kamaru Usman scoring his second win in the competition as he defeated American Top Team’s Steve Carl by unanimous decision. 
According to Nielson sources, the preliminary viewership for the show came in at 332,000 viewers and this is the second lowest viewed episode of the season.
After nine episodes, the average viewership in the preliminary ratings for The Ultimate Fighter 21 is 379,000 viewers and the average viewership of the show in the +3 DVR ratings is 572,000 viewers.
The ratings history of The Ultimate Fighter 21 is below.
Episode 1: Live+SD – 490k, +3 DVR – 704k
Episode 2: Live+SD – 454k, +3 DVR – 646k
Episode 3: Live+SD – 364k, +3 DVR – 524k
Episode 4: Live+SD – 286k, +3 DVR – 415k
Episode 5: Live+SD – 340k, +3 DVR – 512k
Episode 6: Live+SD – 353k, +3 DVR – 586k
Episode 7: Live+SD – 371k, +3 DVR – 625k
Episode 8: Live+SD – 425k, +3 DVR – 566k
Episode 9: Live+SD – 332k, +3 DVR – Available next week