The third Republican debate will look a lot like the last one.

Ten of the 11 candidates on stage for the Sept. 16 debate on CNN are expected to be on the main stage on Oct. 28, when the party gathers in Boulder, Colo., for an event televised by CNBC.

The only exception is Wisconsin Gov. Scott Walker, who dropped out shortly after the last debate.

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GOP front-runner Donald Trump Donald John TrumpREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails Trump urges North Korea to denuclearize ahead of summit Venezuela's Maduro says he fears 'bad' people around Trump MORE will again be center stage. He’ll be flanked by Ben Carson, the retired neurosurgeon who has a tight grip on second place, according to an average of the qualifying polls.

The other eight candidates who will make the main stage are Sen. Marco Rubio Marco Antonio RubioWhite House pleads with Senate GOP on emergency declaration Sixteen years later, let's finally heed the call of the 9/11 Commission Schumer urges GOP to reject Trump's 'destructive' national emergency MORE (Fla.), former Hewlett-Packard CEO Carly Fiorina, former Florida Gov. Jeb Bush, Sen. Ted Cruz Rafael (Ted) Edward CruzCornyn less popular than Cruz in Texas: poll Trump unleashing digital juggernaut ahead of 2020 Inviting Kim Jong Un to Washington MORE (Texas), former Arkansas Gov. Mike Huckabee, Ohio Gov. John Kasich, New Jersey Gov. Chris Christie and Sen. Rand Paul Randal (Rand) Howard PaulWhite House pleads with Senate GOP on emergency declaration The Hill's Morning Report — Emergency declaration to test GOP loyalty to Trump The Hill's 12:30 Report: Trump escalates fight with NY Times MORE (Ky.).

CNBC announces final lineup for #CNBCGOPDebate, live from Boulder, CO next Wednesday at 8pm ET. pic.twitter.com/Bpl0hi6QuB — CNBC (@CNBC) October 21, 2015

There's also a second debate for candidates polling below an average of 2.5 percent but who have hit at least 1 percent in any qualifying poll. That debate will include the same four candidates as last time — former Pennsylvania Sen. Rick Santorum, former New York Gov. George Pataki, Gov. Bobby Jindal (La.) and Sen. Lindsey Graham Lindsey Olin GrahamWhite House pleads with Senate GOP on emergency declaration GOP lawmaker says panel to investigate drug company gaming of patent system Sixteen years later, let's finally heed the call of the 9/11 Commission MORE (S.C.).

Former Gov. Jim Gilmore (Va.), who did not qualify for last month’s debate, will not qualify for this month’s either.

CNBC used an average of qualifying polls from the major broadcast networks and Bloomberg from Sept. 17 through Oct. 21 to iron out the field.

Christie, Kasich and Paul tied for the lowest score of the top 10 candidates as of Wednesday afternoon with 3 percent. The 2.5 percent threshold made it essentially impossible for any additional candidates to jump onto the main stage, but both Paul and Christie briefly flirted with that floor.

The pair had dipped below 3 percent as late as Monday and could have been knocked out with at least two additional polls at 1 percent or lower. Instead, both were saved by stronger numbers.

In the lower-tier debate, Graham didn't qualify until the closing days of the polling period, where he finally showed up on the scoreboard in three of the final polls.

CNBC’s debate will be moderated by the network’s John Harwood, Becky Quick and Carl Quintanilla.