Geoffrey Sisk is going back to the U.S. Open, an example of why this major championship truly is open to one and all. In what looked like a marathon and felt like a sprint, the 48-year-old New Englander went from being a long shot to assuring himself of a tee time at the U.S. Open in just 20 days. Sisk was among 18 players — the smallest group in more than a decade — who made it through 18 holes of local qualifying and then 36 holes of sectional qualifying to join Tiger Woods, Rory McIlroy and the rest of the stars at Merion next week for toughest test in golf.