Rockville insurance broker Rhett Butler made it to the final fivesome in the World Series of Golf in Las Vegas when he won his grouping yesterday. Butler, who pocketed more than $3.2 million when he finished fifth in the Main Event of the World Series of Poker last year, dominated his threesome early, lost the lead on No. 17 and closed out his final opponent on the 20th hole. Poker pro Phil Ivey is also still playing.

The tournament, which combines the game of golf with poker-betting strategy, started with 60 competitors and a $10,000 buy-in. Today's winner earns $250,000; second gets $60,000; third, $50,000; fourth, $40,000; and fifth, $30,000. The World Series of Golf is being filmed as a reality TV show and is scheduled for broadcast next month on NBC.

But all you duffers out there, remember -- the downside to all this is that Butler loses his amateur status.