After a frosty start, the stretch run has just over a week left as the WPIAL boys basketball playoff field is building with 53 teams that have now clinched a district postseason berth.

A reminder of the playoff format this season as sections with eight or more teams send the top five teams to the playoffs while sections with seven or fewer schools will send the traditional top four teams.

If two or more teams tie for the final playoff spot and the head-to-head tiebreaker does not break the tie, all of the tied teams qualify.

Here is the latest list of teams that earned a district playoff berth through Friday.

*Won or shared section championship

Class 6A

5 of at least 10 playoff teams have clinched

Section 1

*New Castle Red Hurricanes

Section 2

Upper St. Clair Panthers

Central Catholic Vikings

Hempfield Spartans

Mt. Lebanon Blue Devils

Class 5A

10 of at least 17 playoff teams have clinched

Section 1

*Gateway Gators

Penn-Trafford Warriors

Section 2

Penn Hills Indians

Shaler Titans

Section 3

*Thomas Jefferson Jaguars

Peters Township Indians

South Fayette Lions

Section 4

Chartiers Valley Colts

Lincoln Park Leopards

Moon Tigers

Class 4A

7 of at least 12 playoff teams have clinched

Section 1

Knoch Knights

North Catholic Trojans

Section 2

Quaker Valley Quakers

Central Valley Warriors

Section 3

Derry Trojans

Elizabeth Forward Warriors

Belle Vernon Leopards

Class 3A

12 of at least 16 playoff teams have clinched

Section 1

Mohawk Warriors

Aliquippa Quips

Ellwood City Wolverines

Riverside Panthers

Section 2

Bishop Canevin Crusaders

Keystone Oaks Golden Eagles

Section 3

South Park Eagles

Seton LaSalle Rebels

Section 4

Southmoreland Scotties

Ligonier Valley Rams

Charleroi Cougars

Waynesburg Central Raiders

Class 2A

14 of at least 19 playoff teams have clinched

Section 1

Jeannette Jayhawks

Clairton Bears

Section 2

*Sewickley Academy Panthers

Eden Christian Academy Warriors

Section 3

Chartiers-Houston Buccaneers

Jefferson-Morgan Rockets

Fort Cherry Rangers

Beth-Center Bulldogs

West Greene Pioneers

Section 4

Neshannock Lancers

Our Lady of the Sacred Heart Chargers

Laurel Spartans

Shenango Wildcats

Union Scotties

Class A

5 of at least 8 playoff teams have clinched

Section 1

Nazareth Prep Saints

Aquinas Academy Crusaders

Avella Eagles

Section 2

Neighborhood Academy Bulldogs

Serra Catholic Eagles