Potomac Falls High School bested Loudoun County, 56-47, in a Region II Division 4 boys basketball quarterfinal game Feb. 21 to punch its third straight ticket to the regional semifinals.

Dulles District Division 4 Player of the Year Gregory Graves scored a game-high 23 points for the two-time defending state champion Panthers (18-8). Potomac Falls was able to rebound after a 20-point loss to Loudoun Valley Feb. 17 in the Dulles District championship.

“We had a good, hard practice Saturday, and we respond well to adversity,” Potomac Falls coach Jeff Hawes said. “I thought our guys would respond well after Friday.”

The Raiders (13-11) took a quick lead in the first quarter, following consecutive 3-pointers by Stephen Veschi and Michael Anderson. Three other Raiders added points to wrap the first quarter up in their favor, 14-11.

The Panthers entered the second quarter with a vengeance, holding County to just four points in the frame and going on a 9-2 run to take the lead. Potomac Falls would maintain a lead the remainder of the game.

Potomac Falls started the second half on a 7-0 run, with Graves, senior Matt Galloway and freshman Wanya Allen adding scores. The Raiders put up only seven points in the third quarter, with Tim Herring contributing five of them.

“The start of the second half was key,” Hawes said. “It meant us taking control of the game.”

The fourth quarter was the highest scoring for both Potomac Falls and County as the Raiders mounted a late comeback. Anderson scored eight points and both Veschi and junior Quan Stinger added three each as County pulled within five points with under two minutes left.

Undaunted, the Panthers added 10 points from the foul line down the stretch to solidify the win.

“We fought hard,” Graves said. “I didn’t play well in the championship. I needed to lead my team tonight.”

Potomac Falls now travels to Stephens City to face Sherando in the semifinals Feb. 23. Sherando defeated Heritage, 75-67, in the quarterfinals.

Potomac Falls 56, Loudoun County 47

LC: Anderson 15, Herring 9, Veschi 8, M. Adams 6, Stinger 5, Turnage 2, Ballinger 2

PF: Graves 23, Allen 7, Orbe 7, Galloway 5, Shanosky 5, Fort 4, Wilson 2, Shorts 2, Fischetti 1

Halftime: Potomac Falls, 22-18

Boys: Loudoun Valley 77, Park View 53

The Dulles District season and tournament champion Vikings rolled past Park View in the region quarterfinals at home Tuesday. Senior John Yoxthimer paced Valley with 26 points, while Josh Grimard scored 20, Paul Rowley added 12 and Jovon Miller had 10 points. The Vikings will host Millbrook Thursday in the region semis.

Girls: Woodgrove 58, Charlottesville 25

The host Wolverines jumped out to a 16-4 lead and never looked back to win their first-ever region playoff game. Ten players scored for Woodgrove, led by Stephanie Purnell and Halley Lynch in double digits. Purnell blocked eight shots and pulled down six rebounds to go with her 12 points and Lynch added six steals and five rebounds in addition to her 11 points. Woodgrove will host Monticello in the region semifinals Thursday night.

-WHS scoring: Fagan (6), Lorinchak (7), Brit Basinger (1), Bro Basinger (4), Williamson (2), Hardison (7), Miller (2), Lynch (11), Purnell (12), Tilly (6)

Girls: Tuscarora 55, Warren County 38

The Huskies went on the road and came away with a 17-point victory over the Wildcats to collect their first-ever region win. Freshman Alexis Bailey led Tuscarora with 17 points. The Huskies play at No. 1 seed Liberty in the region semifinals Thursday.

Girls: Loudoun County 61, Dominion 30

Fresh off winning their third consecutive Dulles District tournament championship, the host Raiders more than doubled up the Titans to open the Region II tournament Tuesday night. Loudoun County - state finalist in 2011 - will play at Powhatan in the region semifinals Thursday.

-Carl Lukat contributed to this report.