Pareanui Bay's first three wins included successes in the Gr.2 Sarten Memorial (1400m) and the Listed Eagle Memorial (1500m) before he suffered his first defeat when a close second in the Listed Uncle Remus Stakes (1400m).
"He was pretty unlucky the other day, as well as the bad barrier he got knocked over on the corner and then bumped again at the 200m and still went close," Pike said.
"It was a bit unfortunate to lose that unbeaten tag, but such is racing.
"He galloped brilliantly on Tuesday and it's probably not the strongest Wellington Guineas we've seen and barring bad luck, I'd think he'd go very, very close."
Pareanui Bay will be opposed in Saturday's Guineas by improving stablemate Habana, winner of his last two on the bounce.
Pike will also be represented in the Gr.3 Mode Technology Trentham Stakes (2100m) by Sherwood Forest and in the Gr.3 Dixon & Dunlop Anniversary Handicap (1600m) by Providenceprovides and London Bound.
Sherwood Forest has yet to return to the form that won him the New Zealand Derby with subsequent Victorian and Sydney campaigns going unrewarded, but his last-start third in the Taupo Cup was an improved effort.
"I think we're getting him back to somewhere near his best," Pike said.
"His two runs back this time have been very good and at Taupo he was set a bit of a task with a long and wide sustained run and probably peaked at the furlong.
"Third-up at 2100m on a big roomy track like Trentham will really suit him and I would be expecting him to go close, especially at set weights and penalties."
Sherwood Forest's main target is the Gr.2 Barfoot & Thompson Auckland Cup (3200m).
"It looks the ideal race and I definitely think he'll get the trip. He ran the Derby out strongly so I don't think the two miles would be a problem. We'll keep him ticking along that path," Pike said.
Providenceprovides placed in the Gr.3 Canterbury Breeders' Stakes (1400m) and the Gr.3 J Swap Sprint (1400m) and Pike wasn't disappointed with the Real Impact mare when she was out of the money in the Gr.2 Rich Hill Mile (1600m).
"She is definitely a better filly going left-handed, but she still ran well and would have probably been beaten only a length-and-a-half or so if she wasn't checked late," he said.
"I think back to Wellington on the big track she will be hard to beat.
"I'll leave London Bound in the Rating 74 as well, but we might have a throw at the stumps and try to get some black type with her if everything fell her way."