The boston celtics' gerald green prepares to throw down a jam during the slam-dunk contest as part of the NBA All-Star Game festivities. Green won this year's dunk competition Saturday night in Las Vegas, scoring a perfect 50 on his final attempt.

Las Vegas ? Boston’s Gerald Green capped All-Star Saturday with an acrobatic leap over a table to win the dunk contest, and Miami’s Jason Kapono fell just short of an event record while winning the 3-Point Shootout.

Green, the Celtics’ 21-year-old swingman, performed his two most memorable dunks in the first round before that lengthy final leap over a three-foot table bearing the All-Star game logo for a windmill jam and perfect 50 score to cap an event that gets tougher to revolutionize every year.

“I’ve always dreamed about being in the dunk contest, (but) I never dreamed about actually winning,” said Green, who was in high school in Texas two years ago. “Just coming out here to Las Vegas and winning it for my fans in Houston, my fans in Boston, is tremendous.”

Green first made an electrifying two-handed slam on an alley-oop pass off the side of the backboard from teammate Paul Pierce in the first round. Green then jumped over fellow finalist Nate Robinson while wearing the No. 7 Celtics jersey of 1991 dunk champion Dee Brown – and shielding his eyes in the crook of his elbow in an homage to Brown’s memorable no-look dunk.

Green easily won over the five-man judges panel of Michael Jordan, Julius Erving, Dominique Wilkins, Kobe Bryant and Vince Carter – particularly when Robinson, the diminutive 2006 champion, missed nine straight times on his final dunk before finally landing a one-handed spin slam.

“I knew they were going to be tough, because those guys had the creativity and the dunking style,” Green said. “I tried to come out with something they never did before, (and) hopefully they could give me a score.”

Green and Robinson eliminated Orlando’s Dwight Howard and Chicago’s Tyrus Thomas in the first round.

Green initially planned to jump over a life-size cardboard cutout of the 5-foot-9 Robinson before the New York guard volunteered to stand in for his stand-in.

Green’s creativity contrasted with the cool precision of Kapono, who beat stars Gilbert Arenas and Dirk Nowitzki with a final-round 24 – just one shy of the event record. Kapono, the fourth-year pro who finally blossomed with the Heat this season, tied Mark Price’s final-round record and fell just one point shy of Craig Hodges’ overall mark with an impressive performance leading off the last round.

“It’s something that I dreamed of as a kid,” Kapono said. “You watch Larry Bird and all those guys shoot, and obviously I learned early on that I wasn’t ever going to be in on the slam dunk part of this.”

With Green and Kapono starring, Las Vegas saw a show on the All-Star weekend’s busiest night. There also was an entertaining sideshow: NBA star-turned-broadcaster Charles Barkley beat 67-year-old NBA referee Dick Bavetta in a footrace for charity.

Though Barkley, who turns 44 on Tuesday, has gained weight exponentially since his playing career, he still had enough spring to outrun Bavetta over 31â2 lengths of the court. Barkley nearly lost when he began running backward for the final feet, but tumbled over the half-court line just before Bavetta made a headfirst dive.

The evening got off to an appropriately silly start in the Shooting Stars competition, featuring three-person teams composed of an NBA player, a WNBA player and a former NBA great from the same city.

Detroit’s team of Chauncey Billups, Swin Cash and Bill Laimbeer won when the Chicago team was disqualified from the final round for shooting out of order.

Dwyane Wade also defended his title in the Skills Challenge with a perfect final run through the obstacle course to beat Bryant in 26.4 seconds.