Albion Park applied the blowtorch on The Rail, turning first-innings defeat into an outright victory in their round-11 match.
Dismissed for 97 on the first day at Keith Grey Oval with the Razorbacks (9-132 declared) already taking first-innings points, the Park responded ruthlessly on day two.
The Park declared at tea after smashing 7-218 off 43 overs, led by Mark McMillan (64) and Graeme Smith (50).
They then routed the Razorbacks for just 43 to claim 26 outright points and consolidate their spot in the top four.
Raheel Chaudhry took 3-11, Adam Coughlan 2-9 and Rob Monaghan 2-6.
With the Park facing Kookas, Oak Flats and Lake Illawarra in the final three rounds, it was a vital victory.
Meanwhile, patient batting from Shellharbour was enough to claim first innings points from leaders Oak Flats at Tom Willoughby Oval.
Resuming at 3-53 chasing 95, Shellharbour posted 9-199, with Pat Moulton making 60 and Ken Nguyen an unbeaten 53.
Darren O'Connell took 3-47 for Oak Flats who were 6-165 in their second dig, with Nathan Brown making 83.
Kookas went within one wicket of an outright victory over Kiama at Cavalier Park.
Resuming at 6-77 chasing 132, Kiama were bowled out for 123. Allen Sullivan then smashed seven sixes in an unbeaten 71 as Kookas declared at 3-146.
Set 155 for victory, Kiama opener Nathan Barr (64) top-scored, with the home side finishing at 9-123.
Kookas spinner Scott Cox took 4-38 in the second innings.
Lake Illawarra (215) had an easy outright win over Gerringong-Jamberoo (64 and 100) at Kevin Walsh Oval. Jamie Crowhurst took match figures of 7-30 and Lakers teammate Kerrod White claimed 5-15 in the second innings.