Erika Wakefield scored 26 for Heritage Hall.
Piedmont will face Class A No. 1 Okarche in the finals of the tournament Saturday night.
Okarche beat Bethany 62-38, with Morgan Vogt and Kenadey Grellner scoring 21 each and Madison Lee adding 17.
The matchup is a rematch of last year's tournament final, which was won by Okarche.
STILLWATER DOWNS EDISON
The inside-outside combination of Jenny Scarbrough and Austyn Iven powered Stillwater past Tulsa Edison 64-56.
Scarbrough, a 6-foot senior, had nine of her 16 points in the third quarter. Iven, a senior guard, made two 3-pointers and was 14-of-17 at the free throw line to account for her game-high 20 points. Kayla Klaus added 11 for Stillwater, which avenged an earlier loss to Edison.
Markeisha Mays led Edison with 16 points.
Stillwater will face host Shawnee at 6:30 p.m. in Saturday's championship game.
SOUTHMOORE COMES BACK TO MAKE FINALS
Southmoore used a dominant fourth quarter to take a 44-40 win over Choctaw in the semifinals of the John Nobles Invitational Tournament at Moore.
Choctaw led by five going into the fourth but Southmoore controlled the final eight minutes, outscoring the Yellowjackets 44-40.
Serithia Hawkins led Southmoore with 13 points.
Southmoore is looking for its first tournament championship this season.
In each of its previous tournaments, the SaberCats have lost to a No. 1 team — to Class 2A No. 1 Northeast in the Harrah semifinals and Class 4A No. 1 Anadarko in the Anadarko finals.
Those are Southmoore's only two losses.
Southmoore won't meet a top-ranked team in this tournament, though.
The Class 6A No. 4 SaberCats will face No. 6 Muskogee at 7 p.m. Saturday for the title.
Muskogee beat Lawton Eisenhower 73-52 in the other semifinal.
Dakota Vann and Ashley Gibson had 14 points each as Deer Creek beat Mustang 49-43 to advance to the finals of the Bruce Gray Invitational, where it will face Enid. Gibson was 11 of 12 from the free-throw line as Deer Creek hit 21 of 26 free throws. ... Bry Flanagan had 17 and Tanna Baker 13 as Bethel beat Westmoore 43-41 to advance to the finals of the Newcastle Invitational. Bethel outscored the Jaguars 14-7 in the fourth. Bethel will face Ada in the finals. ... Maclayn Massey had 30 points in Christian Heritage's 52-36 win in the Little Axe Invitational. CHA will face Plainview for the title.
By Ryan Aber and Scott Wright