Jillian DeCoursey

[7] DeCoursey started undergraduate studies at University of Bridgeport and graduated from Hunter College.

[8] DeCoursey also eventually finished her postgraduate studies at Iona University, earning a master's degree and owns her counselling practice in mental health.

[2][9] DeCoursey made her promotional debut on August 31, 2017 at Invicta FC 25: Kunitskaya vs. Pa'aluhi against Ashley Medina.

[13] On July 21, 2018, DeCoursey faced Alesha Zappitella, replacing Shino VanHoose,[14] at Invicta FC 30: Frey vs.

[17] DeCoursey was scheduled to challenge the reigning Cage Fury FC Strawweight champion Elise Reed at CFFC 91.

[19] DeCoursey was scheduled to participate in a one-night Invicta Phoenix Tournament to determine the next atomweight title challenger.

[27][28] DeCoursey was invited to compete in the flyweight division of the Combat Jiu-Jitsu world championship on December 20, 2020.