Rossington Main slumped to their heaviest defeat in almost five years as they went down 8-1 at Hemsworth Miners Welfare.
Main’s fourth straight league defeat was their worst since being thumped 9-0 at Leeds Carnegie in December 2009.
Armthorpe Welfare, meanwhile, lost 10-0 at home to Premier Division leaders Tadcaster on Tuesday night.
The two defeats are a low point in what is turning out to be a season of struggle for Doncaster’s three sides, with Rossington fifth bottom in Division One and Armthorpe and Maltby Main both struggling in the top flight.
Rossington were looking to bounce back from their Senior Cup exit against Worsbrough Bridge Athletic five days earlier when the visitors won penalties following a 1-1 draw.
However, they were behind after just six minutes as Nick Guest knocked in a rebound after a header had come back off the crossbar.
Rossington hit back to equalise ten minutes later when Zak Oakshott blasted home from close range.
Parity lasted just three minutes though, with Jack Steers left unmarked at a corner to head home.
Guest grabbed his second just before the half hour mark, tapping in from close range.
Rossington thought they had won a penalty on the stroke of half time when Jordan Hatton appeared to be bundled over, only for the referee to wave away the appeals.
The match official did give a penalty on 57 minutes but it was awarded to the home side for hand ball against Brad Billam on the goal line.
The full back received the mandatory red card and Guest tucked away the spot kick to complete his hat trick and put the game beyond ten men Rossington.
Jason Yates made it 5-1 on 70 minutes with a stunning 35-yard strike before John Whitehead netted the sixth, clipping a shot over keeper Jordan Wildey.
Dominic Blair made it 7-1 on 82 minutes with a neat lob before Darcy Pugh nodded in the eighth in time added on.
Rossington will hope to bounce back this weekend when they take on Knaresborough Town at Oxford Street.
Main won 2-0 in the last meeting between the two teams at Manse Lane back in February.
However, Knaresborough have won on their last three visits to Oxford Street since being promoted to the NCEL, including a 4-2 victory in the corresponding fixture in October last year.
Having gone out of the West Riding County Cup at the first hurdle with a 2-0 home defeat against Premier Division rivals Garforth Town earlier in the week, Armthorpe Welfare found themselves kicking their heels last weekend after the first wet spell of the winter forced the postponement of their trip to Staveley Miners Welfare due to the Inkersall Road pitch being waterlogged.
On Saturday Armthorpe will aim to bounce back from their midweek mauling at fellow strugglers Nostell MW.
It is a crucial game for Armthorpe who go into the game 19th out of 21 teams in the Premier Division.
They are just one place and two point above the hosts and know that defeat would see them tumble into the relegation zone.