AUBURN, Wash. - While Stryker Phd has been one of the fastest horses at Emerald Downs in recent memory, posting Beyer Speed Figures of 96 and 97 in his past two starts, it's also true that the late-running 4-year-old has never won a race at his home track. A hard-luck second in four consecutive stakes appearances, Stryker Phd will try to kick down the door Sunday as the likely favorite in the $50,000 Muckleshoot Tribal Classic for older horses at 1 1/16 miles.