How will this work?

One of my opponents closed their account while I was facing them in a daily tournament. They will still have a higher tiebreak score than me if I win, and are set to make it into the next round. What will happen? Will I make it instead of them? (I'm 3rd place but if I win the 2nd place guy will have a lower score and they've completed all their games)

Here's the scores

1	SMattheus(1344)		1½	1	11	11	6.5	17.25
2	selvagem321(1095)	½0		10	11	11	5.5	12.25
3	Awesomedude2053(1624)	0	10		11	11	5	9.5
4	123LWV(1173)	00	00	00		11	2	0
5	Gasselik(1400)	00	00	00	00		0	0

Me and @SMattheus are playing each other rn

Idk, you'll probably advance? Right???

I think that

If your opponent closed their account during a Chess.com Daily tournament, they will not advance, even if their tiebreak score would normally qualify them. When an account is closed, all of that user's active games are automatically resigned, and they lose any standing they held in the tournament.

Here’s what happens step by step:

Account Closure Effects
When a user closes their account in an active tournament, Chess.com’s system automatically marks all ongoing games as losses for that player. Their profile becomes inactive and is excluded from future pairings or progression in tournaments.​

Tournament Progression and Tiebreaks
At the end of a round, only active accounts are considered in determining who advances. The Chess.com tiebreak system (which uses variations of the Buchholz/Sonneborn–Berger systems) calculates advancement only among valid, active competitors. Even if the closed player’s tiebreak score remains higher in the system temporarily, automatic recalculation occurs once their account status updates and their remaining games are marked as losses.​

Your Case Specifically
Since the second-place player closed their account:

You are currently in 3rd place.

If you win your final game, the tournament table will update once their closure is processed, lowering their score.

You will move up and advance instead of them, assuming tiebreaks are recalculated as normal for active players.

In short: once Chess.com processes their account closure and game forfeits, they will be ineligible to advance, and you will take their qualifying spot.

I think that this is AI-generated text, except the first 3 words.

Which means that it's probably nonsense that the LLM just made up.

I see that your group resolved but the answer is if an account is closed, it doesn't move in to the next round.