One has made just two starts in two years, while another sports three straight victories for his new trainer, with a combined winning margin of 17 lengths. Yet another is making only his second North American start after spending the first part of his career in Argentina.

Indeed, Saturday’s 122nd edition of the Grade 1, $400,000 Suburban presented by Shadwell Farm has drawn a most unique assemblage of eight horses, ranging from 2006 Gulfstream Park Handicap winner Harlington, to trainer Rick Dutrow Jr.’s rising star, Rising Moon, and Solar Flare, whose gritty three-quarter length allowance victory at Delaware Park om the U.S. debut on June 3 so impressed trainer Larry Jones that he penciled in the Grade 1 Suburban as his very next start.

“We ran that race without thinking about the Suburban,” said Jones of Solar Flare, a son of Salt Lake out of the Southern Halo mare Stellaire. “But he finished so quick the last 70 yards, plus he had already won at a mile and a quarter in Argentina, that we made the decision to run him.”

The four-year-old Solar Flare, first or second in seven of his eight lifetime starts, was a nine-length winner at 10 furlongs in his final start in Argentina in January of this year. He came to Jones’ barn soon afterward, and went through a period of adjustment before resuming serious training.

“We kind of had to let him adapt to North American training and he went through a ‘blah’ period,” said Jones. “He’s a very high quality colt. You normally wouldn’t think of a son of Salt Lake as wanting to go a mile and a quarter, but the mare put a lot of stamina into him. I don’t think the word ‘tired’ is in his vocabulary.”

It also doesn’t appear to be in the vocabulary of Four Roses Thoroughbreds’ Rising Moon, either. A four-length winner of an optional claimer here at Belmont Park on May 30, his first start in more than a year, the five-year-old son of Runaway Groom won an off-the-turf event at Gulfstream Park in his first start for Dutrow last February, followed by a four-length score in the $67,000 Wagon Limit Stakes at a mile and a half Belmont last May. Dutrow will also saddle Frost Giant, a Group 3 winner in Ireland in 2006, in the race.

Harlington is another horse who enters the Suburban with an interesting history, or, as trainer Tom Albertrani put it, lack of history. Now six, the son of Unbridled has raced but nine times, including a third-place finish in an optional claimer on May 31 in his first start for Albertrani, which also was his first start in more than a year. Since then, he has turned in a three works, including a five-furlong move in a bullet 59.97 on June 12, a bullet 1:00.65 breeze on June 18 and a five-furlong breeze in 1:02.97 on Wednesday.

“He’s been very consistent, and he is obviously talented,” said Albertrani of Harlington, who has won six times and who previously was trained by Todd Pletcher.

“He had had some time off, and after a few weeks after we got him in April we were looking to give him some kind of prep. He’s done well since he ran, and it seemed logical to go the next step. In the back of our minds we were looking at a race like the Suburban, which, with his pedigree, would help him as a stallion.”

Also going in the Suburban presented by Shadwell will be A.P. Arrow, fourth behind Curlin in Dubai World Cup in his last start and top weight at 118 pounds; the New York-bred Naughty New Yorker; 2007 Grade 3 Stuyvesant Handicap winner Hunting, and the Allen Jerkens-trained Merchant Marine, making his first graded stakes start.