Table-toppers Brighton hammered 10-man Peterborough thanks to a brace from birthday boy Ashley Barnes.
Brighton took an early lead when Barnes glanced home from an Elliott Bennett free-kick.
The hosts' task was made more difficult when George Boyd was sent off for violent conduct, before Bennett had a penalty saved by home keeper Joe Lewis.
Inigo Calderon fired in from close range to double the lead and a Barnes penalty sealed the win.
Brighton started the day six points clear at the top of the table, while Peterborough were hoping to return to an automatic promotion spot.
But the hosts never looked like ending Brighton's unbeaten record, which now extends to 10 matches.
The scoreline could have been even more convincing but Barnes, celebrating his 21st birthday, missed his chance for a hat trick when he hit the crossbar twice late on.
Peterborough United manager Gary Johnson told BBC Radio Cambridgeshire: "Second best weren't we? All over the field.
"We have to give credit to them, they looked sharper than us, even with 11 men on the field.
"They enticed us into tackles for penalties and enticed us into getting red cards and they looked the better football team on the day."
Brighton manager Gus Poyet told BBC Sussex: "We came with an attitude and a desire to win the game from the beginning. Nothing changed because until the sending off we were the better team on the pitch by far.
"The only worry was that we needed to finish off the game. We came to play our way and we showed it from the beginning.
"If you look at the stats today we had 15 shots on target. Credit to Joe Lewis (Peterborough goalkeeper) because he was the man of the match. We dominated the game and the best player was from the opposition. He was outstanding."
Live text and stats
Saturday, 30 October 2010
Npower League One
Barnes (pen) 62
01 Lewis yellow card
16 Bennett yellow card
06 Lee yellow card
07 Wesolowski (Ofori-Twumasi 64)
11 McCann yellow card
09 Mclean (Frecklington 30) (Whelpdale 50)
10 Boyd red card
25 Kishishev (Battipied 77)
17 Murray yellow card (Baz 70)
Ref: SuttonAtt: 10,116
Attempts on target
Attempts off target
90:00+1:44 The referee blows for the end of the match.
89:30 Corner from left by-line taken by Agustin Battipiedi.
89:05 Agustin Battipiedi takes a shot. Save made by Joe Lewis.
88:33 Unfair challenge on Nathaniel Mendez-Laing by Ashley Barnes results in a free kick. Direct free kick taken by Joe Lewis.
86:26 Inswinging corner taken by Cristian Baz from the right by-line.
85:32 Corner taken right-footed by Marcos Painter from the left by-line, Agustin Battipiedi produces a header from inside the area
that goes over the bar.
85:06 Agustin Battipiedi takes a shot. Joe Lewis makes a save.
83:39 The ball is sent over by Mark Little.
83:18 The ball is crossed by Elliott Bennett, Mark Little manages to make a clearance.
82:04 The ball is crossed by Grant McCann, Shot from deep inside the area by Craig Mackail-Smith clears the bar.
80:44 Shot from just outside the box by Chris Whelpdale misses to the right of the target.
79:24 The ball is crossed by Cristian Baz, Mark Little makes a clearance.
77:38 Free kick awarded for a foul by Charlie Lee on Elliott Bennett. Direct free kick taken by Inigo Calderon.
77:02 Cristian Baz delivers the ball, Joe Lewis makes a save.
76:54 Chris Whelpdale crosses the ball, clearance by Gordon Greer.
76:08 Substitution Agustin Battipiedi is brought on as a substitute for Radostin Kishishev.
70:35 Gary Dicker sends in a cross, blocked by Chris Whelpdale.
70:08 Cristian Baz produces a left-footed shot from the edge of the box and misses to the left of the target.
69:11 Substitution (Brighton) makes a substitution, with Cristian Baz coming on for Glenn Murray.
68:51 Craig Mackail-Smith fouled by Adam El-Abd, the ref awards a free kick. Joe Lewis takes the free kick.
68:23 Elliott Bennett produces a left-footed shot from just outside the box that misses to the right of the target.
66:29 Ashley Barnes takes a shot. Save by Joe Lewis.
65:46 Glenn Murray takes a shot. Save by Joe Lewis.
64:44 Mark Little fouled by Elliott Bennett, the ref awards a free kick. Direct free kick taken by Seth Nana Ofori-Twumasi.
63:46 Substitution Seth Nana Ofori-Twumasi on for James Wesolowski.
62:50 Inigo Calderon sends in a cross, clearance by Charlie Lee.
61:36 Elliott Bennett fouled by Joe Lewis, the ref awards a Penalty.
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