CHICAGO — The drinks will start flowing at 7:30 p.m. on Tuesday at Slattery’s Midtown Pub in Manhattan. Odds are, the tears will start flowing 65 minutes later. Or will they?

A mix of Knicks fan blogs/podcasts will host their third fan viewing party of 2018-19 Tuesday night to pray on 14 percent. Those are the odds the Knicks have to win the lottery and Duke wunderkind Zion Williamson.

“If we win, it’s going to be akin to winning a championship in there,’’ said Alex Wolfe, who runs the Posting and Toasting blog. “It will be insane in the room. People are going to be hearing us outside the building and down the block or two. If we fall to five, you’ll hear the groans five blocks away also.’’

The Knicks-blog coordinators conferred on whether it was worth throwing a watch party for a lottery presentation that could end in 10 minutes — with an 86 percent chance of groans.

Yes, they decided, it was worth it. Ten percent of drink proceeds (maybe Slattery’s will up it to 14 percent) will go to the Madison Square Garden charity — Garden of Dreams. But there’s more at work for this fan base that has experienced mostly torture since 2002.

Jeff Bellone, who researches technology for driver-less cars, runs the Knicks Film School fan blog and feels he needs this gathering after months of “Not Tryin’ for Zion’’ tanking hype.

“We felt like if we use the event to get people together, raise money for charity, we can at least walk away thinking the night wasn’t a complete waste,’’ Bellone said. “It’s only 10 minutes when they reveal the team logos. But at least this way, we’re all together. We can console each other, celebrate if we win and end up helping people in the meantime. It’s a good opportunity to use the night and be positive with it no matter the outcome. The outcome is not exactly stacked in our favor.’’

In fact, the Knicks have a 59.8 percent chance of falling to the fourth or fifth pick, but that negative talk won’t be encouraged during “the pregame’’ at the 36th Street saloon.

“I’m not bringing a good-luck charm other than getting us all together,’’ Bellone said. “That’s my good luck. Better than watching it home alone with some coin in my pocket. I’m hoping we’re bringing that positive luck in the bar together.”

If Patrick Ewing’s dais magic brings the Knicks lottery gold, the walls of the bar may indeed shake.

“It’s going to be — I can’t imagine,’’ Bellone said. “It’s been so long since the Knicks fans have been able to celebrate something other than losing for the lottery. There will be a lot of pent-up feelings let loose. Nothing has gone right for this organization for so long.’’

Andrew Claudio, who hosts a Gotham Sports Network podcast, can’t stand the suspense any longer.

“I’m ready for it to be over,’’ Claudio said. “I’m at peace if we don’t get it. I’d be pleasantly surprised if it happens and relieved. We had to watch the 17-65 season and it was all worth it.’’

But since mid-December, Claudio has played the lottery simulator on Tankathon’s website since the Knicks fell into the bottom 3 and became 14 percenters. He has hit the button almost every day and knows how often the results came up against the Knicks.

“It made me want to root for some of the young guys to win now and then,’’ Claudio said.

The lottery hosts — also including reps from “Knicks Fan TV” and “The Knick of Time Show” — last hosted a watch party March 15 when the Knicks were in San Antonio and about 65 fans attended.

The Knicks were blown out early and the TV turned to the Duke-UNC game.

“It turned quickly into a Zion Watch Party,’’ Claudio said.

Just like Tuesday’s.