In the best and final inning of the best back-to-back starts of his career Rick Porcello bailed out Omar Infante.

In the bottom of that inning after Victor Martinez continued his sensational second half Infante resumed his recent ability to send Prince Fielder homeward in a big spot.

Those sixth-inning events lifted the Tigers to a 4-2 victory over Seattle on Monday night at Comerica Park. Porcello followed last week’s first complete game of his career by allowing one run and striking out 10 his second-most whiffs this season and in his career.

When told he’d just authored the best back-to-back starts of his five-year career Porcello said “We’re trying to close the door here so they are coming at the right time.”

Monday marked the start of the final two weeks of the season and the Tigers now have a six-game lead on second-place Cleveland and an eight-game lead on Kansas City in the Central.

As he won his 13th game Porcello turned in the Tigers’ 100th quality start of the season most in the majors.

The night’s first big moment came when shortstop Jose Iglesias made an excellent leaping catch of Kendrys Morales’ two-out liner up the middle which would have driven in a first-inning run.

Abraham Almonte pulled a homer to right off Porcello in the second to offset the Tigers’ run in the first.

It stayed 1-1 into the sixth when Infante threw wide of second from the hole for an error when he tried for a forceout.

With runners at first and second and one out Porcello struck out Mike Zunino for the third time and got rookie Nick Franklin looking. He had finished his night by striking out the side.

Miguel Cabrera hasn’t homered for three weeks but there are other ways to win games. Cabrera walked against left-hander Joe Saunders with two outs and nobody on in the sixth and went to second on Fielder’s opposite-field single.

Martinez also went the other way when he bounced an opposite-field single between the line and first baseman Justin Smoak to score Cabrera with the tie-breaking run. Martinez is hitting .372 since the season’s midpoint.