Super League new boys Hull KR made it two wins out of two with a gritty performance against Huddersfield, who remain win-less after three matches.
Picking up from where they left in their dramatic opening-round win over Wakefield, Rovers raced into a 16-0 lead and, urged on by 2,000 vociferous fans among the 7,700 crowd, held off a spirited fightback from the Giants.
Their victory was based on a workmanlike display from their pack - in which former Australia prop Michael Vella was especially outstanding - and the kicking game of industrious captain James Webster.
Huddersfield could not match the enthusiasm of the promoted side and failed to heed the early warning signs when centre Jon Goddard breached their line only to be held up on his back.
Former Halifax, Wigan and Hull playmaker Chris Chester, who carved out Rovers' winning try in their win over Wakefield, again demonstrated his ball-handling skills to create the game's first try for stand-off Scott Murrell after 10 minutes.
He then went off injured but centre Gareth Morton kicked three goals to maintain Rovers' early momentum and stretch his side's lead to 10-0 after the first quarter.
And it got even better for the visitors when an offload by substitute David Tangata Toa enabled full-back Ben Cockayne to added a second converted try in the 34th minute.
Huddersfield gave themselves hope when the impressive Eorl Crabtree sent centre Stephen Wild over for a try a minute before the interval and they dominated the early part of the second half.
They ought to have made more of clean breaks from Crabtree, the ever-dangerous Brad Drew and Chris Nero, while John Skandalis and Robbie Paul were both held up over the line.
The Rovers line also lived a charmed life when Thorman was inches from touching down Drew's grubber kick but the pressure finally told when Nero successfully followed up Thorman's stabbed kick to the line.
Thorman's goal made it 16-10 but Webster made sure of the win when he put over a drop goal four minutes from the end.
Former team-mates Iain Morrison of Rovers and Huddersfield's Stuart Jones were sin-binned midway through the second half by referee Ben Thaler after coming to blows.