Conor McGrandles and Dom Jeffries both scored their first goals of the season as Lincoln thumped Blackpool to take another step towards promotion from League One.
Unbeaten in 17 league games, the Imps remained 10 points clear of third-placed Bolton, with a game in hand, but the troubled Seasiders are now just one point clear of the relegation zone.
The teams exchanged early chances, with Blackpool goalkeeper Bailey Peacock-Farrell saving very well from Ben House before his opposite number, George Wickens, denied Tom Bloxham.
Lincoln took the lead in the 38th minute when Reeco Hackett's corner caused chaos at the back post, with McGrandles nodding in from right on the line.
The Imps doubled their lead after 78 minutes when a short back pass by Fraser Horsfall led to Rob Street rounding Peacock-Farrell and scoring into an empty net.
The rampant hosts rubbed their visitors' noses in it as Jeffries rounded off a slick move by passing into the bottom corner before Ryan One finished the rout by slotting in from a narrow angle.
Match report supplied by PA Media.
Lincoln City sweep aside Blackpool
Evatt: 'We're now in a dogfight'
