Meanwhile, in the Senior Circuit, the Braves and Mets had two games postponed due to Hurricane Helene running through Atlanta last week. Due to a lack of foresight and initiative from MLB, these two games had to be played in a doubleheader at Truist Park on Monday afternoon to determine the final two NL Wild Card entrants.

This is The Athletic’s daily MLB newsletter. Sign up here to receive The Windup directly in your inbox. What. A. Day. Let’s dive in on what happened, what’s next — and what’s at stake in today’s Mets-Braves doubleheader.

With a wild double-header, baseball saved the best for last on the final -- bonus -- day of the regular season.

It's official, the New York Mets are playoff-bound. After a crazy final two innings, the Mets won the first game of Monday's doubleheader. The 8-7 triumph over the Atlanta Braves at Truist Park was nothing short of insane.

The Atlanta Braves bounced back from a stunning loss in the first game of a makeup doubleheader, claiming the last postseason berth with a 3-0 win over the Mets in the nightcap Monday after New York clinched a playoffs trip with an 8-7 victory

All three teams are tied, with the Diamondbacks losing the tiebreaker. The Mets and Braves doubleheader will decide who's in and who's out.