The two sides will play in the Championship in the 2013-14 season after cancelling each other out in a 0-0 stalemate at the Madejski Stadium on Sunday afternoon
The stalemate leaves the two clubs nine points behind 17th-placed Aston Villa with three games remaining, but the result of the final-day clash between Villa and Wigan, who lie 18th, will put survival beyond both teams' reach.
A win for Wigan in that fixture would see them attain the 35-point total that would relegate QPR and Reading, while a draw or Villa victory would see Paul Lambert's team rise above that same threshold.
Reading currently sit bottom of the Premier League but QPR have occupied that position for much of the campaign - with Harry Redknapp replacing Mark Hughes in November.
Redknapp has improved the west London club's fortunes but not enough to have ever pulled them out of the bottom three.
In the meantime, Reading's struggles cost Brian McDermott his job in March, and Nigel Adkins was hired to replace the now-Leeds boss after departing fellow top-flight newcomers Southampton.