An opening try came in the 11th minute for Worcester when their new signing Netani Talei scored, on his debut, from a quick ball from the 5m line after a turnover in the ruck. The conversion was missed by their fly half James Brown.
Quins responded five minutes later and a break from Hala'ufia saw the offload taken by Will Skinner in support, with a 2 on 1 against Worcester's full back Loki Crichton. Ugo Monye took the ball over the line, the conversion from Malone taking Quins ahead.
Malone added an extra 3 points, converting a penalty against Marcel Garvey for holding onto the ball, after a kick and chase from Danny Care. 10-5.
In the 27th minute, referee Chris White showed Chris Hala'ufia a yellow card for a high tackle, and Quins were reduced to 14 men.
The resulting penalty saw James Brown put 3 points on the Worcester score, reducing the deficit to two points.
With 34 minutes gone on the clock, Quins gave away another penalty, which the Warriors kicked to touch. From the line out the ball was driven forward and taken over the line by Worcester's hooker, Aleki Lutui. A change of kicker for Worcester saw Loki Crichton slot home the conversion.
Quins came back to full strength with Hala'ufia returning to the field with just 3 minutes on the clock until half time. Worcester were penalised and Quins capitalised from the penalty. Danny Care took the ball and sent it to the blind side for Ugo Monye to score his second try of the match. The try was converted by Malone. 17-15.
The last kick of the first half was a penalty by Loki Crichton, putting Worcester ahead going into the break with the score line 17-18.
At the beginning of the second half both teams spent a good amount of time in each other's halves with no points to show for their efforts.
In the 56th minute a yellow card was shown to Marcel Garvey for deliberate hands in the ruck, and Worcester were down to 14 men. Harlequins took advantage of the extra man and quick hands down from a line out saw Mike Brown take a wide pass from Hal Luscombe and go over in the corner. Malone missed the conversion. 22-18.
After a flood of substitutions from Worcester, their revitalized pack came back, and captain Pat Sanderson touched down in the 71st minute. 22-23.
Even though Quins placed pressure on Worcester into the dying minutes of the match, Worcester breathed a sigh of relief when Ugo Monye was penalized for holding onto the ball and they could kick the ball safely into touch to end the match
During week commencing 22nd April Harlequins will launch an innovative, new Membership Scheme which will replace the existing Season Ticket Holder Programme. Further details of the scheme will be announced in due course.