Spurs now have just one victory in nine games after Adel Taraabt, who was sent off in the 78th minute, scored a superb first-half free-kick to put the home side ahead.
QPR’s win helped Mark Hughes’ side leapfrog Wigan Athletic into 16th place, while Tottenham fell three points behind Newcastle United, who moved into the top four with a resounding 3-0 win over Stoke City.
“I have only seen one bad performance and that was against Norwich. I couldn’t sit here and say we have been playing badly,” said Redknapp.
“We have four games to go and I’m confident we can win four games. I’m very confident [we will finish in the top four] – it is all to play for. We are fighting for our lives and fighting for Champions League football.”
Tottenham came close to breaking the deadlock in the first half but QPR goalkeeper Paddy Kenny produced a string of top saves to deny the White Hart Lane outfit.
The Ireland international deflected Gareth Bale’s powerful header wide and blocked Rafael van der Vaart’s venomous shot in a busy first period, before making a late save to deny Luka Modrić.
Redknapp, who felt his side should have taken at least a point from the game, blamed his lack of options on the bench as the main reason for Tottenham’s recent slump.
“We had enough of the ball and enough chances – I don’t think Brad [Friedel] has had a save to make in all honesty, we just couldn’t score,” the Spurs boss added.
“We just couldn’t get the break, we just needed a bit of luck in front of goal today.
“I had no options forwards-wise on the bench, there was one striker fit and there was no one else to play with him. Really we had no cover at centre-half and no cover up front.
“No disrespects to the bench but it is nowhere near the sort of bench we had six to eight weeks ago.”
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