Chuba Akpom got his Boro career off to a flying start with a debut goal at QPR.
The club’s latest signing scored one and had another disallowed as Boro were held to a point by the Londoners, despite finishing the stronger of the two sides.
Neil Warnock was watching from home again with Kevin Blackwell and Ronnie Jepson taking charge of proceedings and the first piece of action was when Marcus Bettinelli reacted well to smother an early strike from Ilias Chair.
Both George Saville and Grant Hall also made important headers as the hosts had a flurry of early corners.
Boro’s first threat came when Paddy McNair whipped in a free-kick and Hall found space to head at goal, but an offside flag was raised.
And Boro were rewarded at the very next set piece when debut man Akpom scored from a corner with a well placed header into the far corner.
The home side were level before the half hour though when Bright Osayi-Samuel was on hand to covert from close range after Bettinelli made an initial save on the line.
Boro created another great chance minutes later, but Britt Assombalonga was denied by a fantastic save - and another offside flag - after he got up well to meet a Djed Spence cross.
There was also what appeared to be a good penalty shout before half-time when Hall seemed to be hauled down just inside the box, but the decision went against Boro.
And Paddy McNair and George Saville both put in important blocks to ensure it was level at the break.
Marcus Tavernier warmed the hands of Seny Dieng as Boro restarted on the front foot, but the game started to become a scrappy affair.
Dael Fry replaced the injured Hall and Sam Morsy replaced Spence as Boro looked for a spark to reignite the contest.
It took some great defending by Fry on the line to thwart the home side, but Dieng was by the far busier of the two goalkeepers as Boro peppered the QPR box with crosses as the game wore on.
Boro were looking the most likely, and yet another offside flag proved decisive when Akpom appeared to have scored the winner.
And there was to be one final opportunity - another dangerous set piece delivery from McNair went into a dangerous area but the hosts did well to scramble clear with Assombalonga lurking.