Sarah Kaufman (born September 20, 1985) is a Canadian mixed martial artist (MMA). She competes in the women's bantamweight division where she is the Invicta FC Bantamweight Champion. Kaufman was the first Strikeforce Women's Bantamweight Champion and was also the first and only Hardcore Championship Fighting Women's Bantamweight Champion. Kaufman is the #8-ranked pound-for-pound female MMA fighter in the world by MMARising.com and the #4-ranked 135-pound female fighter according to the Unified Women's MMA Rankings. From Wikipedia, the free encyclopedia