For six innings, it looked like Dover Post 709 was set to advance to the York-Adams American Legion Tournament winners' bracket final.
Dover led 3-2 heading into the top of the seventh inning, when Northeastern plated a run to tie it at 3-3.
Northeastern then took a one-run lead in the tenth inning, before Dover rallied with a run of its own in the bottom of the 10th, to tie it again at 4-4.
The game was then suspended because of darkness and will resume at 5:45 p.m. Wednesday at Manchester.
Waiting in Friday's winners' bracket final of the eight-team double-elimination tournament will be Pleasureville, which earned a 9-8 win over New Oxford on Tuesday.
"That's baseball," Northeastern manager Ken Kopp said after the game.
Trailing 3-2 heading into the seventh, Kopp's team rallied to even the score on a suicide squeeze bunt.
After neither team was able to score in the eighth and ninth frames, Northeastern took a 4-3 lead on a single by Spencer Rhoads.
Down to their final outs, Post 709 returned the favor. A RBI hit by Andrew Friday with one out scored the game-tying run. Friday advanced to third, but was eventually forced out at home for the second out.
A weak grounder to second brought about the final out and the suspension of play.
Second-seeded Dover is 12-2. Sixth-seeded Northeastern is 8-5.
Pleasureville 9, New Oxford 8: At Pleaureville, the top-seeded home team (12-1-1) earned a winners' bracket victory over fifth-seeded New Oxford (9-7).
Pleasureville built an 8-3 lead after three innings, only to see New Oxford tie it after 4 1/2 innings, 8-8. Pleasureville plated a run in the sixth to regain a 9-8 lead it would not lose.
Reid Hershner (two hits, two RBIs) and Ben Peterson (double, two RBIs, run) paced the winners. Peyton Megonnell had two RBIs and runs scored for New Oxford, while Josh Bethas had two hits and a run scored.
Josh Marquard got the win, allowing one earned run in four innings of relief, striking out three.
Both teams struggled defensively. New Oxford had seven errors and Pleasureville had four. New Oxford allowed six unearned runs, while Pleasureville allowed five.
Stewartstown 5, Shiloh 2: At Fawn Grove, third-seeded Stewartstown (9-4) stayed alive with a losers' bracket win.
Seventh-seeded Shiloh (6-7-1) saw its season come to an end.
Adam Freese (two hits, homer, two RBIs, two runs), Garrett Lowe (triple, double, run) and Caleb Pietrowicz (two hits) led Stewartstown. Cale Sinnott got the win on the mound, going six innings and allowing two runs and two hits, while striking out 10.
Ian Jameson drove in both Shiloh runs.
Stewartstown will play host to New Oxford in another losers' bracket game on Thursday evening.
Southwest 4, Spring Grove 3: At Hanover, Spring Grove's season came to an end with a losers' bracket loss.
Fourth-seeded Southwest (10-6) scored in the bottom of the seventh to walk off with the win over eighth-seeded Spring Grove (6-8-2).
Dylan Shaffer (two hits, double, RBI, run) and Ethan Zorbaugh (two hits, double, run) paced Spring Grove. Southwest was led by Zach Reed (three hits, double, RBI) and Gavin Willingham (two hits, run).
Trevor Bean got the win with three innings of one-hit, shutout relief, with three strikeouts
Glen Rock 10, Stoverstown 5: At Stoverstown, Justin Anderson led the visitors with a three-run homer and two doubles, to go with seven RBIs.
Also for Glen Rock, Trevor Walzl had two hits, along with four runs scored and two stolen bases; Conor Miller had two hits and one RBI; Dan Rogers connected for a two-run double; and pitcher Jeff Noss threw a complete game, striking out five and walking one.
For Stoverstown, Austin Botts had two hits and one RBI, Nate Harmon had two hits and one RBI and Chris Mattison had a two-run single in the third.
Glen Rock improved to 10-5-1. First-place Stoverstown fell to 18-2-1.
Mount Wolf 9, Manchester 2: At Manchester, Danny Dierdorff (two hits, double, four RBIs, run) and Jimmy Losh (three hits, two doubles, RBI, run) powered the Wolves.
Grant Hoover (two hits, RBI), Dan Westfall (two hits, double, two runs) and Jesse Sargen (three runs) also excelled for Mount Wolf. Chris Biechler had three hits and a run scored for Manchester.
Mark Burnside went six shutout innings to get the win, allowing four hits while fanning five.
Dover 5, Jefferson 5 (8 innings): At Dover, the teams settled for a tie.
Austin Rickrode (three hits, homer, double, two RBIs, two runs) powered Dover. Jefferson was led by Joe Jasinski (three hits, two runs). Jefferson outhit Dover, 14-8.
Seth Weber pitched a complete game for Dover, allowing three earned runs. Jeremy Sabathne pitched a complete game for Jefferson, allowing four earned runs and fanning 10.
Stewartstown 3, East Prospect 1: At East Prospect, the Vets knocked off the first-place Pistons behind a four-hit complete-game effort from Cody Brittain, who struck out 14.
James Klingerman had a double and two RBIs for the winners. Ryky Smith doubled and drove in the Pistons' only run.
Prospect starter Tyler Tubbs pitched well in defeat, going six innings and allowing two earned runs.
East Prospect fell to 22-5. Stewartstown improved to 12-13.
Windsor 3, Felton 2: At Windsor, Mark Shoff pitched a complete game to get the win, striking out 10 and allowing five hits.
Connor Dewees doubled, drove in a run and scored a run for Windsor.
Briar Lauer pitched a complete game for Felton, striking out five, but took the loss. Cole Delp had two hits and a run scored for the Ducks, while Adam Whitman drove in both of Felton's runs.