The Vikings couldn't have asked for any better pitching than they got from senior Weston Loftin in the opener. He went the distance with a three-hitter, striking out eight, for a 5-1 victory.
Senior Deante Bernstain drove in the tying run with a double in the fourth inning and scored on junior Adam Coleman's single.
Three insurance runs were added in the sixth on four errors and two hits, including freshman Anthony Corona's two-out single which plated Bernstein and Coleman.
The nightcap was a seesaw affair, with Valley taking the lead by plating three runs in the second -- two on junior Troy Langan's single -- and the Bruins charging in front with four tallies in the fifth, two on junior Ryan Knutz' double.
The Vikings were down to their last out, trailing by three runs with no runners on base in the bottom of the seventh, when they staged a comeback. It began with a dropped fly ball, with a single and two walks forcing in a run. Two more free passes allowed the tying run to score.
Senior Sean Mattson singled in a run for Bellevue in the top of the eighth, but freshman Corey Marcks singled and came around to score on a passed ball and two errors to extend the contest into the ninth.
Senior Kelvin Nelson singled and scored what would prove the game-winning run for Bellevue on sophomore Joey Jones' squeeze bunt, junior Pete Talkington striking out the side to save a 9-8 decision.
No home runs were hit on the first day, but nine flew out of Osage Field on Sunday -- all hit by the Bruins. Already leading 3-1 in the early contest, Nelson stroked a two-run shot and Mattson went yard with two runners on base during a seven-run rally in the fourth.
Junior Tanner Moore clubbed a two-run dinger in the fifth and senior Bradley Reeves did the same in the seventh for an 18-1 victory.
Mattson hit three homers and drove in five runs as Bellevue (5-5) won the getaway game, 9-6. He broke a 6-6 tie with a three-run blast in the top of the sixth.
The Bruins jumped out to a 5-1 lead, but Valley battled back. Freshman Josh Felz knocked in a pair of runs with a double in the third and the Vikings took a brief lead with three runs in the fourth after a walk and singles by Marcks and Langan loaded the bases with one out.
Thompson's single tied the game in the fifth and sophomore Robert Greco got the win by retiring 10 of the 11 batters he faced, seven on strikeouts, after snuffing the Vikings' threat in the fourth.
Felz had three hits and four RBIs for Valley (1-6-1) during the series. The Vikings will be home Wednesday for a non-conference twinbill against William Woods.