Waldorf drew the outside in the field of six at Wanganui and jockey Johnathan Parkes was aggressive from the outset to get to the front.
"It was a great ride " he was positive and I said to him if there's no pace then press on and he rode him beautifully," Campbell said.
Waldorf sprinted off the bend to quickly put his rivals to the sword, coasting home by five and a-quarter lengths. "He's still got improvement in him, he's a big, burly horse," Campbell said.
"I knew the track wouldn't worry him and I expected a big run."
He also shares in Waldorf's ownership with a syndicate that includes his long-time friend and stable supporter Tommy Heptinstall, who he would be in touch with later last night.
"I'll talk to the boss tonight, he's still in England," Campbell said.
The Wanganui Guineas also provided Berkley Stud stallion Highly Recommended with a memorable black type quinella after Kirkland, who was on debut, shaded Socially Excited by the narrowest of margins for second money.
Lisa Latta completed a smart piece of business when she parted with $26,000 at Karaka last year to secure a daughter of Burgundy.
Named Dijon Bleu, she was a debut winner last season for the Awapuni trainer and yesterday scored a hollow victory in the Listed The O'Leary's Fillies' Stakes (1200m) at Wanganui, a meeting rescheduled after heavy rain forced its abandonment last Saturday.
After five appearances, Dijon Bleu's stake earnings are now closing in on $60,000 with the promise of significantly more to come.
"There's a lot of options for her and the key will be whether she can get 1400m and further and then if we head south early," said Latta, referring to the Gr.1 gavelhouse.com New Zealand 1000 Guineas.
Dijon Bleu raced in behind the leaders to the turn before rider Jonathan Riddell angled her into the clear and, once balanced, she strode clear in the closing 200m to distance Blanco Belle, who was green in the straight, and Style By Design.
"We decided to ride her a bit cold because there was a bit of speed in the race," Latta said. "She got fired up early, but then she came back and really put paid to them in the straight."
It was the three-year-old's second appearance for the season following a solid run for third when resuming last month behind the highly-regarded Astor and the Group One performer Belle du Nord.
"The trip to Taupo has really made her," Latta said. "She has really gone forward since then and I couldn't be happier."
Sir Nate upset the hot-pot Beastmode in the first juvenile contest of the season at Wanganui yesterday.
The son of Nadeem had been beaten by a wide margin when they first met at the Waverley trials last month, but he turned the tables when it mattered in the Vespa standing at Wellfield Lodge 2YO Plate (790m).
"I bought him at Karaka and syndicated him out," trainer Lisa Latta said. "Some new owners are involved so it's a great result. He's a big, strong colt and there's a heap of improvement in him."
A $65,000 purchase earlier this year out of Little Avondale Stud's Select Sale draft, Sir Nate will now head to the paddock.
"We will probably give him a month off and we'd like to think we can get to the Karaka Million, although that's a long way off yet," Latta said.
- NZ Racing Desk