Ulster extended their lead at the top of the Celtic League with a convincing win at fourth-placed Celtic Warriors.
Celtic Warriors: (0) 0
Ulster: (18) 28
Tries: Stewart, McMillan, Humphreys
Cons: Humphreys (2)
Pens: Humphreys (3)
Centre Shane Stewart and flanker Neil McMillan laid the foundations with first half tries, with David Humphreys adding two penalties and a conversion.
Humphreys added another penalty after the break and his 64th minute converted try put the result beyond doubt.
The Warriors lacked any cutting edge as they failed to trouble the scorers for the first time this season.
Shorn of their Welsh squad members at the request of coach Steve Hansen, the
Warriors were no match for the well-organised Irishmen on a rainy night in Bridgend.
The forwards battle was intense and fairly even but Humphreys kept Ulster going forward with a brilliant display of tactical kicking.
Unfortunately for the Warriors Neil Jenkins had a rare off night with the boot, missing two kickable penalty attempts early on.
Ulster made the Warriors pay with the game's first try shortly after.
The forwards won possession near the Warriors' line and Paul Steinmetz sent Stewart flying through the gap and the burly centre stretched over the line.
Humphreys converted and added two penalties before a switch from left to right created a try for flanker McMillan which made it 18-0 at half time.
The fly-half continued to control affairs after the break and kicked Ulster further in front with his third successful penalty.
And when the Warriors turned over possession midway through the half, it was Humphreys who popped up to take the scoring pass and he converted his own try to finish with a personal tally of 18 points.
"We got off to a good start and that's the key on a night like this," said the fly-half.
"We said ay half-time it was case of fronting up in defence and I think we did that."
Warriors coach Lyn Howells accepted his side had been beaten by a better side as he tasted a second successive defeat.
"I'm disappointed with the way we played again," said Howell. "We've got to realise that we need a kicking game.
"Once again we tried to play rugby in silly areas of the field and that's something we've got to come to grips with."
The only downside to Ulster's victory was the injury to lock Matt Mustchin.
The New Zealander went off in the first half with a broken wrist which will bring a premature finish to his season.
Warriors: Wyatt, D James, S James, Bryant (capt), Mustoe, Jenkins, John, Loader, Rees, Horsman, Jones, Sidoli, Jones, Harris, Bryan.
Replacements: Balshen, Morris, Kelly, Parks, Martens, Thomas, Nutthall.
Ulster: B Cunningham, J Topping, S Stewart, P Steinmetz, S Young, D Humphreys, N Doak, S Best, M Sexton, R Moore, M Mustchin, M McCullough, A Ward (capt), N McMillan, R Wilson.
Replacements: P Shields, R McCormack, R Frost, N Best, K Campbell, P Wallace, A Larkin.
Referee: Gregg Davies (Scotland).