Both teams brought across three runs in the first, but Newell-Fonda added another three in the second.
The Knights would rally in the fourth, however, as Quinn Parker knocked a three-run double to make it an 8-7 ball game. The Mustangs were undeterred, however, plating five in the fifth to pull away.
"We told them, hey, we knocked them to the mat and they got back up," said Newell-Fonda head coach Ryan Burkhart. "They knocked us down. All that matters is how we respond. We kept reminding them, nothing is over until it's over in baseball."
Jake Hahn overcame the two rocky innings for the win as he scattered six hits over seven innings. He walked five and struck out six.
"A lot of guts out of him tonight," said Burkhart. "As his pitch count got up, we just had him take a little bit off his velocity. Jake's one of those kids, when he's throwing really good, it doesn't matter if you've seen him or not."
The Mustang defense was stout behind Hahn, committing just one error on the night.
"We've been preaching that since day one," said Burkhart. "Fundamentals are what's going to get you there. Dance with the one that brought you."
At the plate, Tom Devereaux went 0-for-4 but made his at bats count, driving in three runs to lead the Newell-Fonda bats. Hahn went 1-for-3 with two runs scored and two driven in, Zak Sievers was 3-for-4 with two runs scored and two driven in, Seth Dicks was 3-for-5 with three runs scored, and Jon Johnson was 2-for-4 with three runs scored and one driven in.
Newell-Fonda moves to 10-17 with the win and will meet Storm Lake, St. Mary's back in Storm Lake tonight at 7PM. The winner advances into Saturday's District final at Storm Lake public at 7PM. The Panthers took both regular season meetings by scores of 8-7 and 9-5.