The Mets and Yankees play two more games against each other on Tuesday and Wednesday, this time at Yankee Stadium. The Mets dominated the teams’ first two Subway Series games at Citi Field last month, scoring a total of 21 runs. But none of that should really have surprised anybody after the theme-park ride this season has been in New York, on both sides of the city. All New York baseball fans know. For the last two months especially, it has been a roller coaster.

The Yankees were the first MLB team to 50 wins this season, still looking elite even after getting bounced around by the Mets. They were still riding pretty high when they went to Fenway Park on June 14 for a three-game series against the Red Sox (who have been a theme park themselves this season). But the Yankees experienced a steep drop, losing two of three to the Sox to begin an 9-18 slide that took them to the All-Star break. They were on a 6-17 run before they took three of four from the Orioles last weekend.

The Mets? They had already experienced almost the same kind of fall, going 9-19 in May to enter June with a 24-33 record. Their lowest point was a 22-33 mark, before they won two straight against the D-backs to finish the month. Then, it was the Mets who suddenly looked like a rocket to the moon with a 27-12 spree -- the best record in baseball over that stretch before they lost their last game before the break and then the first-half opener to the Marlins on Friday night.

In a blink, the Yankees had gone from the sport's best record and first place in the AL East, to looking over their shoulders at the Red Sox coming up hard behind them. The Mets had gone from looking like they might be on their way to another lost season to leading for a Wild Card spot in the National League, coming up hard themselves on second place in their division.

There have been plot twists all around baseball for just about everybody except the dominant Phillies. There always are; it is part of the enduring beauty of the long season. But none have been more dramatic than the Yankees and Mets have seen so far, before we even get to August. We will begin to find out this week, when they meet up again, which team might be better over the second half. It would have been crazy to even think about something like that when the Mets looked down and out. But a lot changed after that for both teams.

The Yankees picked themselves up in Baltimore and really should have swept the Orioles, before the bottom of the ninth went bad for them last Sunday. Anthony Volpe booted a routine ground ball after Ben Rice’s three-run homer in the top of the inning could have won it for the Yankees, right before Alex Verdugo misplayed a ball badly in left field. Through Friday night, they had won three of their last four, Gerrit Cole was looking like Gerrit Cole again and they were starting to make you believe the worst was over for them.

The Mets, on the other hand, started the second half by losing to the Marlins in Miami, despite a couple of home runs from Jeff McNeil, who had struggled for a lot of the season like his team had in May. Now, we’ll see what kind of shape they’re in when they get to the Bronx on Tuesday night.

And of course, things have gotten at least a little spicier between the two teams now that ex-Yankee and current Met Luis Severino offered this playful chirp the other day to some of his former teammates in a group chat: “You only have two hitters."

He meant Aaron Judge and Juan Soto. And while manager Aaron Boone made it clear Friday that he knew that Severino was joking, he did respond this way: “I saw the way [Severino] said it, and hopefully we can answer him.”

Both teams have questions to answer over the next week and a half, with the reckoning of the Trade Deadline right in front of them and everybody else. At the end of May, you would have bet anything that the Mets' new baseball boss, David Stearns, would have been a seller at the Deadline. Only now the Mets have a real shot at October.

And even before the Yankees went into that deep dive, you knew they were going to be buyers, especially knowing they could lose Soto to free agency after the season.

There the two of them will be this week, same field again, the Yankees especially looking for some payback. Not a subway ride for either one of them this season. More like the Cyclone ride at Coney Island.