Amsterdam Pirates trailed 3-2 halfway the third inning, then turned the game around and led 7-2 after four at bats.
Six of those seven Amsterdam-runs were unearned.
In the remainder of the game, Pirates added five more runs and ended the game via the mercy-rule.
The team had two 4-run rallies.
Amsterdam Pirates scored the first run in the bottom of the first inning off of starter Jack Wagner.
Roelie Henrique led off with a single, moved into scoring position on a passed ball and stole third base.
With one out, he scored on a single by Denzel Richardson, who stranded on second base himself.
Pirates-starter Sven van de Sanden retired the side in the first two innings, but then gave up two runs with two outs in the third.
Luca Muller led off with a double, but he was eliminated at third base on a following bunt by Lars Visser.
Van de Sanden followed with a strikeout, but then got the bases loaded when he gave up a single to Amar van Zwieten and walked Joshbert José Ponte Manganiello.
Pascal Zegwaard followed with a single.
On the basehit, Visser scored the tying run and Van Zwieten also was able to score the go-ahead run when an outfield-error followed.
Quick's lead was shortlived, as Pirates answered with two unearned runs in the bottom of the third, which were scored with two outs.
With one out, Denzel Richardson and Alex Madera singled to put runners at the corners.
Moments later, Madera was caught stealing, but with two outs, Kenny Berkenbosch walked.
A drive into the outfield by next batter Oliver van der Wijst Severino then ended in an error.
Richardson scored the tying run and Berkenbosch ended up on third base.
In what was not really a double-steal situation, the next run was scored.
Van der Wijst stole second base and it wasn't until the throw was made that Berkenbosch took off from third base and was able to score the go-ahead run.
From there, the game belonged to Amsterdam Pirates.
Quick Amersfoort was kept scoreless and the home-team added nine more runs.
Sven van de Sanden didn't encounter problems on the mound and not only threw his first complete game of the season, but also in his big league-career.
The righthander struckout the side in the fourth inning.
Quick came closest to another run in the top of the fifth.
With one out, debuting Abel Kramer reached on an error and Amar van Zwieten followed with a single.
But the latter was then forced out on a grounder by Joshbert Ponte, who later stole second base.
The runners stranded on second and third base.
In the top of the sixth, Ibrahin Redan led off with a walk and advanced on a wild pitch with one out, but was left behind on second base.
Van de Sanden retired the side again in the seventh.
In the meantime, Pirates had taken more distance en route to a 10-run difference.
The team scored four runs in the bottom of the fourth, three of which were unearned.
Rookie Ilyas van den Bos led off with his second single in the game, then Roelie Henrique reached on a bunt-single.
When that was followed by a throwing error, Van den Bos was able to move to third base.
He then scored on a single by Duco Nuijten.
A double-steal gave the home-team runners on second and third base and both scored on a following throwing error on a grounder by Denzel Richardson.
He then stole second base, advanced to third base on a flyout and scored on a wild pitch.
Pirates scored its next run in the bottom of the sixth off of debuting pitcher Jay van de Horik.
He was welcomed in the big league with a lead-off triple by Denzel Richardson, who scored on a following single by Alex Madera.
With one out in the bottom of the seventh, Pirates had another 4-run rally to reach a 10-run difference.
First, Van de Horik recorded his first big league-strikeout when he eliminated lead-off hitter Ilyas van den Bos.
But the righthander then walked Jason Jakobus and gave up a single to Roelie Henrique.
Three runscoring basehits followed.
First, pinch-hitter Jules Cremer delivered an RBI-double, then Denzel Richardson and Alex Madera added RBI-singles, which lifted the lead to 11-2.
For Richardson, this was his fourth basehit in the game.
Next, the bases got loaded when Kenny Berkenbosch walked.
The 10-run difference was then reached when an error was made on a force play-grounder by Oliver van der Wijst.
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Amsterdam Pirates opens series vs. Quick Amersfoort with mercy-rule win
AMSTERDAM (Neth.) -
Amsterdam Pirates recorded a 12-2 mercy-rule victory against Quick Amersfoort in the series-opener on Wednesday-evening (April 26).
Amsterdam Pirates didn't start the game well and faced a 3-2 deficit halfway the third inning.
The team then re-took the lead and took more distance, reaching the 10-run difference in the seventh inning.
Abel Kramer and Jay van de Horik (both Quick Amersfoort) make their debut in the Dutch big league.