Uni's winning run came to an abrupt end on Saturday, with Ashfield claiming all three points on a frustrating day at The Mac.
Two early goals for the visitors in a flying start proved the difference despite UWA's best efforts to fight their way back into the contest.
Ismael Bangura opened the scoring with a simple tap-in inside 15 minutes and Daniel Tait doubled the lead just before half-time after the hosts failed to clear a corner.
Clear-cut chances were few and far between for the boys in green. Alex Kretowicz's header at the back stick sailed wide from Lloyd Prout's cross in the opening stages and a one-on-one opportunity for the striker was well saved by the Ashfield keeper in the midway through the second-half and proved the only noteworthy moments for the side.
Despite large spells of possession in the second stanza, UWA couldn't find a way to penetrate a solid Ashfield defensive unit as they fell to their first loss since Round 6.
It might not have been a positive result, but it was great to see 18's attacker Jonah Madeira make his debut for the first team, with the youngster coming off the bench for the final 15 minutes and showing plenty of promise.
Elsewhere, the 18's continued their dominance in the league with a resounding 9-0 win, while the Reserves almost completed an impossible comeback from 3-1 down, but eventually fell to a 5-3 loss.