Hull City extended their unbeaten run in the Championship to 11 games with a goalless draw at Crystal Palace.
Nick Barmby's side weathered a second-half onslaught at Selhurst Park to cement their record as the division's most miserly defence.
Glenn Murray came closest for the hosts with a header from a cross from the returning Jon Williams.
The stalemate leaves Hull one point and one place outside of the play-off places.
Manchester United loanee Joshua King had the first chance of the game when he skewed an 11th-minute effort narrowly wide.
Palace then grabbed the momentum and striker Chris Martin's powerful drive was well saved by Vito Mannone.
Mile Jedinak should have done better with a header from a corner in the 19th minute before Martin volleyed Nathaniel Clyne's cross onto the bar.
After the break, striker Murray failed to end his 13-game wait for a goal when his header was pushed away by Mannone. Fellow forward Sean Scannell, on a goalless streak since September, then shot over from 20 yards after he was brought on as a substitute.
Hull replacement Tom Cairney threatened from a free-kick which was tipped over by Julian Speroni just past the hour mark.
The stalemate saw Palace slide into the bottom half of the table while Hull missed the chance to move up to fourth.