"It's a $100,000 race for a last-start maiden winner so we couldn't really turn it down."
Brennan said the four-year-old gelding had thrived since his Tauranga win and while he was dropping back to 1400m, she expected forecast rain for New Plymouth to mean the Taranaki Challenge would race more like a 1600m event.
"We've just kept him ticking over. He's hard on himself in his everyday work and he doesn't need a lot of galloping," the Cambridge trainer said.
"We took him to Te Rapa for a gallop last week and he'll have a gallop this week that should have him exactly where he needs to be. He's got a high-cruising speed and he's come through that last race well. We're really happy with him.
"This race is a great idea. Hopefully it continues on because it's added a lot of interest for this time of year."
Martin, who is also on the board of Taranaki Racing and sponsors the race, had to find a new horse for the Taranaki Challenge after the Peter McKenzie-trained Cetus suffered an injury that prevented him from tackling the race.
"Lauren had indicated to the club she was interested in running in the race if she could get a slot and we're happy to have English Gambler running for us," Martin said.