American Danielle Collins upset the odds to win the Miami Open title on Saturday, beating Elena Rybakina of Kazakhstan 7-5, 6-3 to claim her first WTA 1000 title in her final season on the tour.

The 30-year-old Collins, No. 53 in the world, is the lowest-ranked woman ever to win the tournament, clinching her biggest career title in a two-hour triumph.

Collins announced in January that she will be retiring from the sport at the end of this year and her unexpected run to the final and victory over the world No. 4 delighted the home crowd.