Kowalkiewicz (12-3-0) has won two of her last three under the UFC banner, with those wins coming over the duo of Jodie Esquibel and Felice Herrig. Kowalkiewicz has previously challenged for the UFC Women’s Strawweight Title, losing to then champion Joanna Jedrzejczyk by decision at UFC 205. Kowalkiewicz has picked up twelve victories as a professional MMA fighter and nine of them have come by way of decision.
Waterson (16-6-0) enters the contest on the strength of a two fight winning streak, beating Cortney Casey and Felice Herrig. Waterson is a former Invicta FC Atomweight Champion, defeating UFC veteran Jessica Penne to win the gold at Invicta FC 5. Waterson has seen her last three fights go the distance and it has been almost two years since the fighter got a finish.
UFC Fight Night Philadelphia takes place on Saturday, March 30 from the Wells Fargo Center in Philadelphia, Pennsylvania with no main event announced at this time. Fightful is providing live coverage of the event, which airs live on ESPN.