A senior at Robinson high school, Sullivan had to play three holes of sudden death golf with Doug Brown of Langley before he won the Virginia state AAA individual title last week at the Crossings Golf Course in Richmond.
Sullivan shot a 74 and led after the first 18 holes, however, in the second round he shot a 78 for a two-day total of 152 that tied him with Brown.
"I was a little nervous starting out the second day because I was the leader," Sullivan said.
Sullivan and Brown both parred the first playoff hole. Brown missed a three-foot putt for par on the second overtime hole to send the playoff to a third hole. Sullivan earned the title when he chipped out of a bunker and sank an 18-foot birdie putt.
In the districts, Sullivan finished second to Oakton's Chris Turner.
To qualify for the state championship Sullivan had to endure a playoff in the regional competition. Turner, Jefferson's Fred Widicus and South Lakes' Tom Hall qualified for the states after 18 holes, but Sullivan had to playoff for the fourth spot with golfers from Yorktown and Woodson.
On the first hole of the playoff Sullivan hit his ball into a bunker, but blasted out and sank a 12-foot putt to win.