Donnybrook snapped their 47-match losing streak on Sunday after notching a slender 7.9 (51) to 6.11 (47) triumph over South Bunbury at Hands Oval.
The shock result brought to an end the horror run of defeats for the Dons, who had not tasted a victory since round two, 2010.
In atrocious conditions Curtis Guglielmana led the visitors with a best-on-ground showing while Nat Fielding booted three goals for South Bunbury.
Across town, Carey Park kept its top three ambitions alive with an 18-point win over Busselton, 10.8 (68) to 6.14 (50).
Busselton came into the fixture at Kelly Park on top of the ladder and riding a seven-game winning streak, but Carey Park led at every change to claim the vital triumph.
Also on Sunday, the Collie Eagles continued their impressive record at home when they defeated Augusta-Margaret River 8.17 (65) to 2.5 (17).
The Hawks held a quarter-time lead at the Collie Recreation Ground but failed to score kicking into the breeze in the second and final terms.
Dave Cowan booted four majors for the Eagles in slippery conditions.
In Harvey, Bunbury trailed by three points at the long break but overran the Bulls in the second half to claim a 10.10 (70) to 8.5 (53) triumph.
The result means Bunbury are now two wins clear inside the top five with four rounds remaining in the home-and-away season.
On Saturday night the Eaton Boomers brought the curtain down on Harvey-Brunswick-Leschenault’s late finals charge with a thumping 18.5 (113) to 9.8 (62) victory.