The two sides fought out a hard earned point at The Mac, with Forrestfield's opener within 20 minutes cancelled out moments later by Alex Kretowicz.
Conor Devlin's mesmerising footwork and chipped ball over the United defence created a great chance for Lloyd Prout, but the winger's low shot was blocked by a lunging defender and out for a corner.
UWA could've opened the scoring just minutes later, with Devlin's through ball finding Marc Zagami, whose shot was well saved by the legs of United keeper Luke Martino.
Despite their dominance, Uni found themselves behind at the 18-minute mark when Hasan El Yassiri slotted home at the near post after the defence failed to clear.
UWA responded swiftly, with Alex Kretowicz backing his hat-trick heroics against Subiaco in the FFA Cup with a composed finish from Kai Jie's smart ball through.
It was almost a 2-1 lead just before half-time with Zagami's rocket from 30 yards thundering against the crossbar and out with the home side heading into the sheds with the momentum firmly in their favour.
The second half saw both sides battle against the afternoon heat, with the fitness of both squads put to the test.
Forrestfield had a great chance early in the second stanza, with Liam Merigan spooning a guilt-edged one-on-one chance over the bar.
Kretowicz almost stole the win at the death, but his breakaway run on goal was superbly intercepted by Forrestfield keeper Italiano.
Despite a flurry of late chances for the home side it was to be another stalemate at The Mac.
The boys now switch their attention to the 5th Round FFA Cup clash with NPL league-leaders Sorrento at Percy Doyle.
1st Team: UWANFC 1-1 Forrestfield United
Reserves: UWANFC 1-4 Forrestfield United
U18's: UWANFC 2-3 Forrestfield United