The Warriors have pushed Parramatta's NRL season towards a state of disrepair, coming over the top of the Eels to win 24-14 at ANZ Stadium.
After the Warriors led 12-2 at the break, Parramatta looked like getting their year back on track when they crossed twice to build a 14-12 lead with 19 minutes to play.
But they let the match slip just eight minutes later when Mitchell Moses misfielded an awkward Blake Green kick, allowing Warriors utility Jazz Tevaga to scoop up the ball and score.
Crucially, it came off the back of a Moses penalty for a leg pull, just as the Eels looked to be in control of the tempo and the Warriors pinned in their own end.
Moses - pushing for NSW State of Origin selection - was good for the Eels early in the second half as he played the ball more directly before the crucial back-to-back plays.
Warriors Hooker Issac Luke scurried over from dummy-half to put the match beyond doubt with six minutes to play.
With 12 wins the likely minimum cut-off for a finals spot, the pre-season contenders need 10 victories from their last 13 matches to have any chance of playing finals football.
They will also finish the round at the bottom of the ladder for a 10th-consecutive week, with just two wins to their name.
The loss might also have come at a significant cost to off-contract veteran Beau Scott. He limped from the field with a knee injury midway through the second half.
The Warriors' victory ensures they will remain in the top four - a position they haven't relinquished all season.
With star halfback Shaun Johnson still out with a knee injury, youngster Mason Lino again impressed in the No.7 jersey as he set up both of their first-half tries.
Lino first put winger David Fusitu'a over for a miraculous mid-air effort in the 12th minute off the back of a quick ball to his outside.
He kicked across field nine minutes later for Ken Maumalo, who found Peta Hiku to brush past George Jennings to score.