Lehi » William Walker picked up his scoring, Lehi's defense picked up its intensity, and the Pioneers picked up a convincing 62-37 victory over Box Elder in the opening round of the 4A state tournament Tuesday night.

Walker scored 13 of his game-high 19 in the second half, and the Pioneers held the Bees to that same amount to advance to Thursday's quarterfinals, where they'll face Highland at 7:15 p.m.

Lehi (19-3) pulled away from a 33-24 halftime lead, extending it to 47-30 after three. Walker's strongest stint was nine points in an 11-0 fourth quarter run before his exit with 3:58 remaining.

"We picked up our intensity at halftime and redefined a lot of thing we were hoping to do in the first half," said Lehi coach Craig Gladwell, whose team won its 11th straight game. "I thought our defense was even tighter than it was in the first."

While Walker was relatively quiet, Lehi got strong first half scoring performances from Zach Stanley (13 points) and Josh Scott (14) as it took a 33-24 halftime lead.

"That's always big for us," Gladwell said. "We have a lot of weapons and a lot of kids stepped up tonight We have six or seven kids who are capable of scoring for us."

Spurred on by a traveling fan section three busloads strong, Box Elder (13-10) enjoyed an early 7-2 lead before Stanley scored seven points on an 11-3 run that gave Lehi an 18-10 lead after eight. Strong early shooting by Cody Eyre and Brant Mecham kept the Bees within striking distance.

Highland 59, Salem Hills 53 » Nate Fakahafua scored 20 points as Highland started the fourth quarter with a 16-3 run to take control. Joseph Mohrman and London Simonson led Salem Hills with 13 each.

Sky View 48, Olympus 41 » Sky View had nine players score, but none in double figures as it held Olympus 23 to 12 first-half points.

Bountiful 49, Orem 44 » Morgan Ellis and Nick Williams each finished with 13 points as Bountiful held off Orem. Ellis had three three-pointers. Brayden Hill led Orem with 15.

Springville 61, Pine View 53 » Raul DelGado, Sam Schreiner and Matt Sumsion combined for 49 points to lead Springville. Will Bangeter had a game-high 21 for Pine View.

Timpview 73, Snow Canyon 44 » Ky Raymond's 13 points led four players in double figures as Timpview picked up the road victory at Snow Canyon, who was led by Joseph Graham with 12.

Mountain Crest 59, Tooele 43 » Cal Hanks scored 17 and Tyler Weese 14 as Mountain Crest took a 23-14 halftime lead. Jacob Holt led Tooele with 17.

Provo 61, Woods Cross 45 » Kyle Collinsworth scored 25 and Keith Moore and Ryan Durrant 11 each for the Bulldogs. Austin Bankowski led Woods Cross with 23.