Wolves extended their lead at the top of the Coca-Cola Championship to four points with a 3-1 win over Watford
The hosts took the lead in the 23rd minute when Richard Stearman nodded the ball on for Sylvan Ebanks-Blake to fire into the top left hand corner, while Andrew Keogh drilled the ball home shortly after the hour mark to double Wolves' lead.
Adrian Mariappa pulled one back to set up a nervy final 10 minutes for the home fans, but substitute Sam Vokes clinched the victory with a close-range header in the final minute shortly after coming off the bench.
Reading, who had closed the gap to two points after their victory over the leaders midweek, could only manage a goaless draw at QPR, who remain two points off a play-off spot.
Preston and Sheffield United also played out a stalemate but remain in the last two play-off spots, both on 48 points.
Paul Parry's 18th minute goal set Cardiff on their way to a 2-0 win over Nottingham Forest as their great run continues.
The Bluebirds were made to work for the points against an in-form Forest side, who enjoyed a sustained spell of second-half pressure before Jay Bothroyd's killer blow three minutes from time.
Cardiff are now unbeaten in 11 league matches - a run that stretches back to a mid-November defeat at Plymouth - and are only seven points off second placed Reading with a game in hand.
Forest remain in 17th following their first defeat under Billy Davies.
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