ADA — For the first 13 minutes of the second half in Wednesday’s showdown between Frontier and Elgin in the opening round of the Bertha Frank Teague Mid-America Basketball Classic, Frontier star Jenna Plumley looked like a mere mortal.

A 5-3 dynamo who has committed to the University of Oklahoma and has opposing coaches losing sleep trying to devise ways to defend her, Plumley hit only three of her first 11 second-half shots, and with less than four minutes to play, the Lady Mustangs — No. 1 in Class A — led the Lady Owls (8-0 ranked No. 3 in 4A coming into the game), just 50-48.

But Plumley drained a 3-pointer with 3:12 to play, and she accounted for all of Frontier’s points in a decisive 14-7 run over the next two and a half minutes to seal a see-saw 66-57 victory in the marquee match-up of the Mid-America’s first day.

With the win, Frontier advanced to tonight's semifinal match-up with Perkins-Tryon — a 51-34 winner over Elk City — at 8 p.m. Elgin will meet Elk City in a loser’s bracket contest to kick off the Mid-America’s second day of action at 3 p.m.

Plumley, who averaged more than 20 points per game in her first three varsity seasons, finished Wednesday’s contest with 33 points, six rebounds, six steals and five assists (and six of Frontier’s 18 turnovers), and her closing flurry finally put away an Elgin team that trailed by as many at 14 points in the first half but rallied to lead by seven midway through the third quarter.

“We go so fast that sometimes she (Plumley) gets herself in trouble, but her positives outweigh her negatives by about 10-to-1,” Frontier coach Clay Stephens said after seeing his club (the defending Class A state champ) improve to 7-2. “She’s something special.”

After Plumley’s fourth 3-pointer of the game gave the Lady Mustangs their biggest lead since the opening seconds of the third quarter, Elgin’s Kelsey Hale hit the first of two free throws with 2:59 left and, after an offensive rebound, followed with a layup 14 seconds later to cut the lead back to two at 53-51.

But Plumley got a friendly bounce on another 3-pointer to make it 56-51 with 2:36 remaining, and she converted back-to-back steals into a 12-foot jumper and a pair of free throws over the next 28 seconds to build the lead to 60-51. Then, after Elgin point guard Casi Rawls hit a 3-pointer at the two-minute mark and Amber Karty added a free throw 35 seconds later to trim the Frontier advantage to five, Plumley assisted on Amber Swan’s short jumper with a minute left and hit two free throws with 27 seconds remaining to finally put the game out of reach at 64-55.

“We played well in the second and third quarter,” first-year Lady Owl coach Damon Garner said. “But we missed some shots we should have made and didn’t take care of the ball, and they (the Lady Mustangs) came back.

“We just couldn’t pressure Plumley,” he added. “The mistakes she made were mistakes she made on her own.”

Elgin sprinted to a 6-0 lead less than two minutes into the game, but the Lady Owls managed only one field goal — a 3-pointer by Maggie Oliver at the 3:40 mark — over the final 6:15 of the period and trailed 19-9 heading to the second. Plumley hit a pair of 3-pointers and had eight points and two assists and Hale had six of her 12 points in the opening quarter.

The Frontier lead ballooned to 25-11 on a pair of Hale free throws with 5:32 left in the half, and Elgin center Jessica Pillow picked up her second foul on the play that sent Hale to the line. Pillow spent the rest of the game in foul trouble and scored only five points before fouling out in the fourth quarter.

“Jessica getting into foul trouble really hurt,” Garner noted. “She’s our best defender and one of our senior leaders.”

Frontier still led 29-18 with three minutes left in the half, but Elgin scored five straight points and nine of the final 13 in the quarter to trail by only six (33-27) at intermission, and the Lady Owls scored the first 13 points of the third quarter to take their biggest lead of the game at 40-33 on Rawls’ 3-point play with 4:04 left.

The Lady Mustangs answered with an 11-4 run of their own over the next 2:44 to tie the score on a layup by Plumley — who missed a chance for a 3-point play but drew Pillow’s fourth foul on her drive to the basket.

Hale got a steal and converted a layup with four seconds left in the quarter to give Frontier a 46-44 lead heading to the fourth, and the two teams exchanged baskets before Plumley’s explosion in the final minutes.

Plumley was 10-for-20 from the field (including 5-of-10 from 3-point range), while Swan had 12 points and six rebounds and Sharon Forte added 10 points for the Lady Mustangs. Jordan Gardner also scored six points and had a team-high eight boards in the win.

Oliver led Elgin with 15 points, Hale scored 13 and pulled down a game-high 12 rebounds, and Abbey Basler had 12 points and eight boards to help Elgin to a 39-34 rebounding edge. But the Lady Owls hit only 11 of their 20 free throws while Frontier drained 14-of-17 charity shots.