A fantastic start for the City youngsters ends in defeat.
Dekel Keinan opened the scoring for the home side on only two minutes from a Craig Conway corner.
But the lead lasted just over thirty minutes as a big name and big man equalised for QPR. Rob Hulse's height and strength helped as he powered past Keinan and fired home on thirty three minutes.
The Bluebirds controlled the majority of the first half but found themselves behind going into the break after an impressive set piece from Frankie Sutherland was headed in by Taylor Parmenter. A fantastic performance from Aaron Lennox in the QPR goal was the main reason behind the lead the away side had going into half time with the young 'keeper continually frustrating Cardiff's forward line.
The away side came out for the second half in a determined mood and soon added a third goal through Mo Sharif. The midfielder placed the ball home after Tom Hitchcock had laid the ball off for him.
Rob Hulse was again on the score sheet two minutes later as he nodded home a good cross from Bruno Andrade. The scoreline somewhat flattered the Hoops though, as Aaron Lennox performed heroics for his team.
It was a fantastic start for the Bluebirds with Dekel Keinan opening the scoring on just two minutes on Monday evening. The Israeli international met a great corner taken by Craig Conway and powered a header into the back of the net.
GOAL: CARDIFF CITY U21 1-0 QUEEN'S PARK RANGERS U21 (Keinan, 2 mins)
The impressive Declan John almost increased the lead from a corner on sixteen minutes. The left back curled a beautiful in-swinging ball into the box that almost caught out the Queen's Park Rangers keeper Aaron Lennox, the keeper managing to manoeuvre his body well though and punch the ball to safety.
The set pieces of Frankie Sutherland began to trouble the home side; the midfielder drove a free kick into the box for Taylor Parmenter to meet with a diving header that looked destined for the back of the net. Elliot Parish however managed to save well under a lot of pressure.
On thirty three minutes though the Hoops did have their equaliser as experienced forward Rob Hulse fired home. Hulse managed to beat Keinan after a tussle and smash the ball past Parish to level the scores.
GOAL: CARDIFF CITY U21 1-1 QUEEN'S PARK RANGERS U21 (Hulse, 33 mins)
The home side though did not let this goal perturb them and continued to put pressure on Rangers' defence. Jesse Darko tested Lennox from twenty yards with a stinging drive that the keeper had to push over the bar, the talented keeper continually frustrating the Bluebirds. It was another impressive QPR player that created their second goal though; Sutherland again with a free kick and this time Parmenter planted his header past Parish who had no chance.
GOAL: CARDIFF CITY U21 1-2 QUEEN'S PARK RANGERS U21 (Parmenter, 39 mins)
Lennox in the QPR goal continued to impress and keep the Bluebirds at bay before the half time whistle. Saving superbly from a Conway free kick as well as a powerful shot from the winger, Joe Ralls also tried his best to beat Lennox but the keeper kept the home side out as Queen's Park Rangers led going into half time.
HALF TIME: CARDIFF CITY U21 1-2 QUEEN'S PARK RANGERS U21
Cardiff had controlled the majority of the first half and were unlucky to be behind going into half time, but they soon found themselves further behind as the away side grabbed a third goal. Tom Hitchcock managed to get behind the home defence wide on the left and cut the ball back for Mo Sharif to fire home.
GOAL: CARDIFF CITY U21 1-3 QUEEN'S PARK RANGERS U21 (Sharif, 51 mins)
A fourth Queen's Park Rangers goal soon followed as Rob Hulse grabbed his second goal of the night. Dangerous winger Bruno Andrade crossed the ball superbly from the right wing and Hulse's heading prowess was again on show as he nodded the ball into Parish's goal.
GOAL: CARDIFF CITY U21 1-4 QUEEN'S PARK RANGERS U21 (Hulse, 53 mins)
Substitution Queens Park Rangers: Angelo Balanta on for Tom Hitchcock (65 mins)
Substitution Queens Park Rangers: Troy Hewitt on for Rob Hulse (69 mins)
Substitution Cardiff City: Curtis Watkins on for Kane Owen (76 mins)
The home side struggled to make many chances in the second half but Joe Ralls again was unlucky to not be on the score sheet. The midfielder with a rasping shot only to see Aaron Lennox again frustrate him with an incredible save. Without the heroics of Lennox the game could easily have seen both sides score four.
FULL TIME: CARDIFF CITY U21 1-4 QUEEN'S PARK RANGERS
Cardiff City U21: Elliot Parish, Kevin Sainte-Luce, Declan John, Theo Wharton, Dekel Keinan (Ben Watkins, 89), Adedeji Oshilaja, Kane Owen (Curtis Watkins, 76), Joe Ralls, Jesse Darko, Nat Jarvis, Craig Conway. Subs not used: Yora Enzam, Thomas Burridge, Cameron Clarke.
QPR U21: Aaron Lennox, Sam Magri, Mike Harriman, Fred Champion, Taylor Parmenter, Max Ehmer, Mo Sharif, Frankie Sutherland, Rob Hulse (Troy Hewlitt, 69), Tom Hitchcock (Angelo Balanta, 65), Bruno Andrade. Subs not used: Jamie Sendles-White, Brad Simmonds, Tomasso Tranni.