03/28/2007 11:00PM

Etc. . . .

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Stringtown Wonder, who led all horses in North America with 12 victories, has been named Philadelphia Park's horse of the year for 2006. Also honored were 19-year-old jockey Frankie Pennington, who set a track record by riding 259 winners, and Jayne Vaders, the first woman since 1988 to lead the track's trainer standings. . . . Yonkers Raceway in New York began taking bets at an additional 1,500 slot machines on Thursday, raising its total number of machines to 5,500, the track said in a release. Revenue from the machines has raised the track's average daily purse distribution to $200,000, up from $40,000 before the installation of the machines last October.