It’s a party foul.

Tickets to the Knicks watch party at Radio City Music Hall are selling on the secondary market for 140 times the sticker price.

The official watch party at the iconic Rockefeller Center venue went on sale for just $10 at 10 a.m. Saturday, and were quickly scooped up.

It didn’t take long for the profit-hungry to try and make a buck.

One ticket close in the theater’s pit at the Game 5 watch party was going for $1,450 on secondary marketplace Vivid Seats.

Higher up seats on the mezzanine level were listed for as much as $604, according to the site.

Another hawker was asking $484 for a seat in the middle mezzanine.

Even the cheap seats in the theater were gouging eager Knicks fanatics – asking for as much as $424 for the highest-up section in the theater.

Radio City Music Hall is the venue for the official Knicks Game 5 watch party because of a previously scheduled 5 Seconds to Summer concert at Madison Square Garden.

The Knicks will also be hosting free, ticketed, and secured events right outside the Garden for 3,000 lucky orange and blue fans and at Wollman Rink in Central Park.