Terry Collins will be haunted by his decision to with his heart over his head in allowing Matt Harvey to stay in for the ninth inning of Game 5’s eventual loss. That’s what happens when things go wrong in games that are dissected over and over, with no statute of limitations on disappointment.

With the Royals down 2-0 entering the ninth inning of Sunday night’s Game 5, the jam-packed crowd at Power & Light District wanted one more World Series mini-miracle.

Royals closer Wade Davis threw a 95-mph fastball past Wilmer Flores in the 12th inning for the last out of his team’s 7-2 victory over the Mets in Game 5 of the World Series on Sunday night and then he was mobbed by his euphoric Kansas City teammates. Suddenly, right there in the dogpile on the mound at Citi Field, two average Major League Baseball fans appeared out of nowhere to hand Davis and his teammates modern symbols of success: a new championship T-shirt from Majestic Athletic and a cap from New Era.

It had been 30 years since the Royals won their last championship, a span of 10,962 days. But after one last dramatic comeback in the ninth inning — their eighth comeback victory this postseason — the Royals stormed past the Mets with a five-run 12th and clinched their first World Series since 1985 with a 7-2 win over the Mets on Sunday night at Citi Field.

Of course Royals manager Ned Yost trusted Christian Colon when he had a World Series to win. Colon hadn’t appeared in the postseason until the 12th inning of Sunday night’s 7-2 victory in Game 5, when he delivered the pinch-hit, RBI single that ignited the five-run rally that brought the Royals their first title since 1985.

Gentlemen and ladies, start your laptops — and cell phones. The offseason officially has arrived, bringing the promise of heavy action as 29 Major League Baseball clubs take aim at the 2015 World Series champion Royals.

Here are the top GIFs from the Royals’ 7-2 victory over the Mets in Game 5 on Sunday night to win the World Series, courtesy of @MLBGIFs.

Michael Conforto homered twice, becoming the sixth Mets player to register a multi-homer game in the postseason. He’s the third-youngest Major Leaguer with a multi-homer World Series game.

Maybe this was Mike Moustakas’ own secret plan. Pull a grounder off Mets closer Jeurys Familia through that big gap on the right side of the infield in the eighth inning, past a diving Daniel Murphy to drive in the decisive run.

For the first time in their history, two major sporting events will converge in one New York borough today: the 45th running of the TCS New York City Marathon and Game 5 of the 111th World Series between the Royals and Mets.

Well, sure, the Mets could be in a lot better position in the World Series.

After the Royals’ 5-3 come-from-behind win on Saturday, you can add another incredible rally to the lore that will define their 2015 postseason.

The Royals are one victory away from winning the World Series for the first time in 30 years. It seems like there’s a number for everything in baseball these days, and here are two for Kansas City: The Royals have scored 44 runs in the seventh inning and beyond, a postseason record. How do the Royals so consistently come back? What’s their secret?

The Mets have lived by the home run during this postseason, and they’re about to die by it if they don’t start generating more baserunners against the Royals.

The Mets checked into this World Series believing that if they could just get the ball to Jeurys Familia with a lead, their chances of shaking hands in the middle of the infield were terrific. For the second time in three appearances, the dominant closer was instead on the wrong side of a Royals victory.

The Cardinals have elected to exercise their 2016 team option on left-handed pitcher Jaime Garcia, the St. Louis Post-Dispatch reported on Saturday night. The club has not confirmed that decision.

Royals right-hander Chris Young repeatedly has said he believes crediting wins to a pitcher is absurd, since a whole lot of other guys have as much or more to do with the result. But long before the World Series even began, Young made a winning decision.