Plum's senior class wasn't in high school the previous time the Mustangs won a conference game.
But the Mustangs broke through in impressive fashion in the season opener Friday night.
Sophomore Nick Coxon scored three touchdowns to lead Plum to a 45-19 road win against Hempfield in the Foothills Conference.
It was the Mustangs' first conference win since the 2011 regular-season finale against Kiski.
Coxon led the way, running for 137 yards and scoring on runs of 45 and 4 yards. He also caught a 28-yard touchdown pass from William Fuhrer.
Fuhrer completed 6 of 10 passes for 123 yards and two touchdowns, the other a 20-yard strike to Zachary Nolan.
Hempfield's Daniel Walters, who threw for 212 yards, ran for touchdown and hit Dante Luther for a 53-yard score. Luther led all receivers with nine catches for 148 yards.
Mt. Lebanon, 40, Canon McMillan 0
Eddie Jenkins threw for three touchdowns and ran for another as the Blue Devils crushed the visiting Big Macs in the Southeastern Conference.
Jenkins completed 7 of 10 passes for 89 yards and had touchdown passes of 9, 18 and 37 yards to Nick Tommasi, Shane Lefever and Alex Englert. He also rushed for a touchdown.
Lefever added a 38-yard touchdown on a fumble return and Joey Stabile closed the scoring with 97-yard run in the second quarter. Stabile finished with a team-high 117 yards on nine carries.
The Big Macs finished with just 51 total yards.
Penn-Trafford 42, Kiski 7
Brett Laffoon threw three touchdown passes and rushed for another to lead the visiting Warriors to a blowout victory against the Cavaliers in the Foothills Conference.
Laffoon hit Chris Stanford and Tim Vecchio with a 2-yard touchdown passes and completed a 30-yard scoring pass to Devin Austin. Laffoon completed 7 of 8 passes for 178 yards. His touchdown run covered 12 yards.
Joe Peduzzi led the Warriors with 80 yards rushing on three carries, including a 52-yard touchdown. Jonah Lisbon scored Penn-Trafford's other touchdown on 23-yard run.
Kiski's Chad Kuhn complrtrf 12 of 16 passes for 99 yards, including a 23-yard touchdown to Cam Turner. Kuhn also rushed for a team-high 55 yards.
Pine-Richland 42, Shaler 0
Ben DiNucci tossed four touchdown passes, two each to Mike Merhaut and D'ondre Gastion, as the Rams crushed the host Titans in the Northern Eight Conference.
DiNucci, the leading returning passer in Class AAAA, hit Gastion on scoring strikes of 26 and 14 yards and connected with Merhaut on touchdowns of 40 and 36 yards. Merhaut had seven catches for 169 yards.
Connor Slomka scored the Rams' other two touchdowns on runs of 1 and 3 yards.
Shaler extended its WPIAL-worst losing streak to 23 games.
North Hills 35, Fox Chapel 7
The Indians jumped to a 28-0 lead in the first quarter and cruised to a Northern Eight win against the visiting Foxes.
Nick Santucci scored on runs of 7 and 14 yards for the Indians, while Andrew Bly scored on a 29-yard run and caught a 21-yard touchdown from Jake Bruder.
Clement Chitambo had the Foxes' lone touchdown on a 4-yard run. Billy Urso threw for 121 yards as Fox Chapel finished with 151 total yards.
Central Catholic 41, Bethel Park 0
Grant Foster scored three touchdowns as the No. 2 Vikings cruised to a non-conference victory against the Black Hawks at Carnegie Mellon University.
Foster scored on runs of 1, 1 and 2 yards in the first half to give the defending WPIAL champions a 20-0 lead at the break. Mike Nsemo, Alex Porco and Ronnie Jones all added touchdown runs in the second half for Central Catholic.
Bethel Park managed just 79 yards of total offense in the loss.
Norwin 16, Latrobe 0
The Knights defense recorded a safety and forced three turnovers, including an interception by Logan Deri that he returned 97 yards for a touchdown, in a shutout victory against the visiting Wildcats in the Foothills Conference.
Peyton Deri led Norwin's offense with 118 yards rushing on 18 carries. The Knights got their other score on a 19-yard pass from Nick Amendola to Zach Hall.
Latrobe's Craig Stevens threw for 88 yards, 43 of which went to Seth Holler on four catches.
Baldwin, 10, Ambridge 7
Douglas Altavilla scored on 6-yard run late in third quarter to lift the Highlanders to a nonconference win against the visiting Bridgers.
Altavilla led the Highlanders with 105 yards passing, completing 10 of 17. HIs favorite target was his younger brother, Nick, who caught five for 72 yards. Rocco Ruscitto added 144 yards on the ground on 27 carries.
Ambridge scored its lone touchdown midway through the third quarter on an 8-yard pass from Austin French to Stephon McGinnis. They connected eight times for 65 yards.
Woodland Hills 27, Peters Township 0
Miles Sanders and Art Thompkins each scored two touchdowns to lead the No. 1 Wolverines to easy road win in the Southeastern Conference.
Sanders, who recently committed to Penn State, scored on runs of 30 and 20 yards, while Thompkins had a 47-yard scoring run and returned an interception 85 yards for a touchdown.
Altoona 28, Butler 10
Eli Mencer scored on runs of 31 and 2 yards to help the host Lions to a non-conference win in the season opener.
Altoona also scored on a 64-yard run by Kevin Givens and a 16-yard pass from Devin Miller to Luke Adams.
Damian Pickett had 81 yards rushing and a touchdown on 10 carries to lead the Tornadoes, who finished with just 100 total yards.
McKeesport 36, Connellsville 7
The Tigers notched their ninth consecutive Foothills Conference victory with a blowout win against the visiting Falcons.
McKeesport finished last season unbeaten the Foothills Conference, including a 47-12 victory over the Falcons.