10/19/2004 12:00AM

Which Potrisunrise will show?

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ELMONT, N.Y. - As the days at Belmont Park's fall meet wind down to a precious few, a marketing genius might bill the final Thursday card as "Aqueduct Preview Day."

The best race on the program, or at least the one with the fastest horses, is a $50,000 claimer that goes as the seventh race.

The seven-furlong sprint drew a field of 10, including the Richard Dutrow-trained entry of Here's Zealous, a graded stakes winner once upon a time, and Champion Ri, who has been away since running fourth at odds-on in allowance company back in March.

The horse with the best last-out Beyer Figure is , an enigmatic 7-year-old gelding who finished last when claimed for $40,000 from a one-mile race at Del Mar on Aug. 29, but turned things around with a lifetime best of 101 in his Belmont debut a month later.

If you were shocked to see Potrisunrise demolish a field of $25,000 sprinters by nearly seven lengths that day, don't feel left out.

"I really was surprised," said his new trainer, Bruce Levine, who entered the meet's final week in a three-way battle for the training title along with Dutrow and Todd Pletcher. "It's hard to figure what he's going to do sometimes, because he's run so many good and bad races."

His big win first time in New York marked the third time this year that he has won immediately following a loss by 12 lengths or more.

The highly competitive sprint also includes: , coming off a sharp try at Monmouth Park; Bailero, whose only U.S. start at seven furlongs was a five-length win at this level; Shake the Dice, who has won twice against cheaper since claimed by national win leader Steve Asmussen; the Suffolk-based Storm'n J R, an upset winner here last fall at 22-1; and Storm Craft, who switches from turf to dirt as the second-leading money earner in the field.

* The eighth race is a 1 1/16-mile allowance for New York-breds, and the eight entrants show a combined 0-for-57 record in the two-other-than statebred condition. Say Cousin Lenny at least had an excuse last time out when he chased the unbeaten Commentator, winner of last week's Perryville Stakes at Keeneland.