HOUSTON — For five innings it was a baseball game. For five innings it was an interminably slow baseball game that was destined to be bogged down in situational pitching changes and other delays.
But then the sixth inning happened.
And it was no longer a game, but yet another blowout victory for the Mariners. Seattle scored seven runs on seven hits in the inning, turning the game into a 13-2 trouncing.
With the victory, the Mariners improved to 46-38.…