"She's a horse that doesn't need a lot of work and she's better with her races spaced, so I would be happier to give her three weeks between runs after this run," he said.
"There's no lead-up race going the Ellerslie way around at all, so going to Waikato wouldn't make a difference because we would be going the same way around as here."
Glory Days has been patiently handled by Thurlow, she had her first start as a four-year-old and has only raced 18 times since, for eight wins and six placings.
"She's a mare that's taken a long time to mature," Thurlow said. "There's not a lot of her and in her younger days she probably wasn't 100 per cent right mentally either.
"She did a good job earlier on over 1400m and a mile and we've always been mindful of her wanting to get over ground but she just wasn't strong enough.
"We let her develop and tell us when she was ready to go further and she was sort of telling us that after her second start this season.
"She's a bit quirky, every time you get on her back she wants to go and do it and there's no half measures so we have to be a bit careful of that or she will over-do herself.
Glory Days is one of 12 horses in training at the Thurlow family's Stainley Park which they operate alongside their farming business.
"Only three of them are at racing stage and the rest of them are young unraced horses," said Thurlow, who pinhooked three-time Group One winner Gingernuts.
"There's a couple for clients that we won't be trading but with our own horses we race what's left if we don't sell them, that's what we have to do really to pay the bills.
"Two thirds of our business is still farming. We've got a dairy farm which I have some guys on and we run a couple of sheep and beef grazing blocks and the home block.
"Once we've finished the horses in the morning we have breakfast and then head out to the farm. My daughter Emma and the boys look after the horses in the afternoon which is good, but it still takes up a lot of our time."
Glory Days is raced by Bill's brother Grant, his wife Patricia, and his neighbours and fellow farmers Brent and Sue McAree.
"Grant used to be a farmer but he's into kiwifruit now and living the life at The Mount (Maunganui), while we're out on the farm doing all the work," Thurlow said.
- NZ Racing Desk