The son of Street Cry won at Haydock on his seasonal bow and has been placed on his other two starts this year.
Watheeq broke well from the stalls and settled in behind the leader, Halling Dancer.
The gap came on the rail rounding the final bend and Paul kicked Watheeq though it and into the lead.
He went a couple of lengths clear before idling but still held on to win by a length.
Roger said: "We have had members of the family and they have been suited by the all-weather. He has been running well and it's great to see him get his head in front again."
Alan Spence's Havin' A Good Time completed a double for the team when taking a 5f maiden at Wolverhampton under Andrea Atzeni.
The daughter of Jeremy was having her second career start and got up in shadow of the post to win by a head.
Roger added: "She is a well-bred filly so it is good that she has got her head in front."
Watheeq (far side) on long hill last week.