BOISE, Idaho. – Nathaniel Burton made a driving, left-handed layup as time expired to give 10th-seeded and 20th-ranked Georgetown a dramatic 63-61 victory over seventh-seeded Arkansas in the first round of the NCAA Tournament’s West Regional Thursday. Joe Johnson tied the game at 61-61 on a layup after a feed from Brandon Dean with 36 seconds remaining. Following a timeout, Georgetown (24-7) ran the clock down and tried to get the ball to point guard Kevin Braswell, who led the Hoyas with 12 points and four assists. With the clock winding down and unable to find Braswell, Burton took the ball from the right wing down the lane and lobbed his layup over Dean for the game winner. Officials reviewed the play to make sure Burton’s shot beat the shot clock. GU began possession with 35.8 seconds remaining. Officials also ruled by the time the ball fell through the net, the game clock had expired. Arkansas (20-11) held a 52-45 lead on a Brandon Davis layup with 11:12 remaining. Over the next three-and-a-half minutes, the Razorbacks failed to score while turning the ball over four times. Georgetown, which advances to meet Hampton in Saturday’s second round, cut the margin to 52-50 during that stretch. Two free throws by Gerald Riley tied the game with 7:45 to play, but Carl Baker, who had 12 points, six rebounds and three steals, drained a three-pointer to put the Hogs back in front. Anthony Perry answered with a three for Georgetown and following UA’s 19th and final turnover of the game with 1:50 remaining, the Hoyas took their first lead since the 17:52 mark of the second period on a Braswell’s jumper for a 61-59 GU lead with 46 seconds left. Johnson tied the score nine seconds later, setting up Burton’s game-winner. Arkansas forced 23 turnovers and held the Hoyas to 40 percent shooting, but UA had 19 turnovers and shot just 39.7 percent. Georgetown led most of the first half, but a steal by Baker set up a Johnson layup which gave the Razorbacks a 31-30 advantage at the break. Johnson led the Hogs with 14 points. Jannero Pargo added eight points and a career-high eight rebounds while Teddy Gipson and Alonzo Lane scored six points each. Mike Sweetney had 10 points and 12 rebounds for Georgetown.