Potomac School's Jalen Broome, pictured during a 2012 game against Flint Hill, has piled up 896 rushing yards and 11 total touchdowns in just four games. (Richard A. Lipski/For the Washington Post)

The Potomac School (4-0) earned a 49-35 win over Sidwell Friends (1-2) in its Mid-Atlantic Conference opener last week, in large part because of the running of tailback Jalen Broome. The senior carried 21 times for 358 yards and five touchdowns in the win, an outburst that leaves him tied for third among all D.C.-area players with 11 total touchdowns this season.

His coach, Pat Duffy, says Broome is the team’s “workhorse,” and a “very talented runner,” he also credits Broome’s lead blocker, senior back Andrew Lent, for the potency of the Potomac running game.

“He’s just been a dominant lead blocker, he’s been out there crushing people,” Duffy said of Lent. “He’s a small kid, probably about 5-7, 170 pounds, but he gets out there and strikes people, and he’s probably been the best blocker on our team.”

Broome will try to climb the regional rushing rankings against St. James (2-2) Saturday.

Key weekend in WCAC

With four playoff spots up for grabs and five weeks remaining in the regular season, the Washington Catholic Athletic Conference postseason picture could begin to take shape with this weekend’s games.

One week after blanking Good Counsel, DeMatha will look to stay out in front in the WCAC standings with a win against O’Connell. (John McDonnell/The Washington Post)

Following its first win against Good Counsel since 2010 last week, DeMatha looks to strengthen its current standing atop the WCAC in Saturday’s homecoming game against O’Connell. The Knights stumbled last week against St. John’s, which has a bye this week, but they will put DeMatha’s defense to the test with multiple offensive capabilities behind quarterback Michael Galvan and running back Kamrin Moore.

Coming off a bye and its own historic win against Good Counsel, Gonzaga takes on Carroll before facing four WCAC teams that are a combined 18-5 this season.

Meantime, Good Counsel looks to avoid a potentially insurmountable 0-3 hole in conference play when it takes on McNamara, which stands to prove that it belongs among the WCAC elite following a 5-0 start.