The S26 Call: Two Founders, One Decision Window

MilesToday, two founders, same application window, same deadline, same dream. One gets the email. One doesn't.

GrantThat gap is what this episode is about.

MilesWe're in the YC S26 cycle right now. The deadline was May 4. According to Y Combinator's own site, if you applied on time, you get a decision by June 5.

GrantWhich is today.

MilesWhich is today. And for a lot of founders, that means the silence is either about to end or it just became official.

GrantYC Roaster tracked the interview window as May 18 to May 26. Thanks. So if you haven't heard yet, you almost certainly didn't get one.

MilesRight, and we followed two founders through exactly that split. One got the call, a ten-minute interview with YC partners, that traction question she nearly fumbled, four seconds of silence that felt like four years. Grant walks me through where she almost lost the room.

GrantBecause she had lost it. She just didn't know it yet.

MilesYeah. Then there's the other side, the founder who hit June two with twelve users and no paid revenue. We dig into what he thinks went wrong and whether that diagnosis is honest or just self-protective.

GrantThat's the heart of conversation. No feedback for pre-interview rejections. That's the structure of reality. CapWave puts the interview rate at roughly seven to ten percent of written applicants.

MilesSo most people never even get the ten minutes.

GrantRight, and we end with both founders the day after; one starting S26, one starting the ninety day window to W27.

MilesHere's the thing: the decision already happened, we're just catching up to it.

GrantLet's hear it.

MilesAnd I'm just sitting there, phone face down on the table, and my co-founder texts me, check your email, and I'm like, I genuinely couldn't move for a second. And the subtext line is just, Your YC Interview. No congratulations, nothing. Four words. Four words. I read it three times. Then I walked into the bathroom and just stood there.

GrantNow sit with that for a second, because there's another version of this story.

MilesYeah, there is.

GrantSame night, different inbox. June 2 comes and goes, and there's just nothing. No email, no subject line, silence.

MilesAnd you have to figure out what that silence means.

GrantRight, because it's not ambiguous by that point. According to Y Combinator, if you applied before the May fourth deadline, you get a decision by June fifth. So June two with no email, you pretty much know.

MilesIt's its own kind of answer.

GrantYeah, and that's where we're starting today.

MilesWe wanted to hold both of those moments in the same episode-two founders, same process, same application window, one email arrives, One doesn't.

GrantAnd what's interesting is how different the weight feels. The founder who got the invite, there's this rush, right? But also immediate dread. Like, now I have to go do the thing.

MilesThe invite is terrifying in its own way.

GrantExactly. YC Roaster published the Season 26 invite timeline and they put the window between May 18th and May 26th. Historically, the first big wave hits on a Tuesday or Wednesday late afternoon Pacific. A second smaller wave follows within 72 hours.

MilesSo for two weeks you're just watching your inbox, refreshing, waiting.

GrantWhich is its own psychological event, you know what I mean? The waiting isn't passive, it's active stress.

MilesAnd then one of two things happens. The email lands and you have between 5 and 14 days before a 10-minute interview that decides everything. Or June 2 passes and you start doing a different kind of math. Noted.

GrantYC Roaster put it plainly you've got roughly 90 days to add the one number that moves a W27 application from interesting to interview users revenue shipped units and

MilesThe thing that kills me is both founders are still building. One just got handed a deadline with a starting gun attached.

GrantAnd one got handed a deadline with no clear end.

MilesSo the question we kept coming back to while putting this episode together. And I think, Miles, you said this before we started recording,

GrantYeah.

Mileswhat actually happens inside that 10-minute interview? Because the invite is the beginning, not the answer. What goes on in that room? So the accepted founder walked me through the whole thing. Ten minutes on Zoom, three partners, no introductions. They just start.

GrantNo pleasantries at all?

MilesNothing. You're in the waiting room, you join, and the first question lands before you've even adjusted your camera. That's the format, and according to multiple founders who've been through it, that's intentional. So what was the first question? What are you building? 20 seconds, no jargon. And she said she almost blew it right there, started explaining the technology. Technology instead of the problem."

GrantClassic.

MilesShe caught herself, reset, but she told me she could feel the room shift the moment she did that, like there was this pause.

GrantThat pause matters.

MilesA lot. Then they went straight to numbers, revenue, retention, growth rate. She said one partner barely looked up the whole time just reading from the application, and the other two were watching her face.

GrantThat's the tell, right? They already know your answers. They want to see how you hold under pressure.

MilesExactly. And here's where I pushed her on this because the version she told me initially was clean, very polished, the interview went well, I felt confident. So I asked, when did you think you'd lost it? And she went quiet.

GrantThere it is.

MilesTraction question. A partner interrupted her mid-sentence, not aggressively but fast, and asked why month-over-month growth had It had dipped two months before; she hadn't prepared for that specific number.

GrantOof! What does she say?

MilesShe stumbled, she said she gave a real answer, but it came out scattered, and then-this is the part she'd left out of every version I'd heard before-she said there were four seconds of silence after that.

GrantFour seconds in a ten minute interview is a lifetime.

MilesRight?" she said it felt like someone had hit pause on everything, and then a different partner asked a completely different question. And she realized they'd just moved on.

GrantWhich could mean they bought the answer or decided it didn't matter.

MilesShe still doesn't know which, but they called her that evening; per Ycroaster.com's breakdown of the S26 timeline, acceptances come by phone, rejections by email. Her phone rang.

GrantThe call is everything.

MilesShort short top!

GrantShort short top!

MilesAnd she said the first thing the partner said wasn't congratulations. It was, "We think you've got something. Let's talk about what happens next.

GrantThat's a very different conversation than the one the other founder was waiting to have.

MilesWhich is exactly the question. What does it sound like when that call never comes? Now flip that around. Same funnel, same deadline, same June 2nd date, but the inbox stays empty.

GrantAnd there's no call coming.

MilesRight, so we talk to the second founder this week and the first thing that struck me is how much he doesn't know yet.

GrantBecause there's nothing to know. That's the part that gets me. According to Y Combinator's own site, on-time applicants get a decision by June 5th. That's it. No explanation, no breakdown.

MilesAnd for founders who don't get an interview invite, there's no feedback at all. Y Combinator made this point clearly: founders who interview but don't get in, Y Combinator gives them a sentence or two. But if you never got the call to interview, you get silence.

GrantSo you're reverse engineering your own rejection.

MilesYeah—you're just sitting with it.

GrantI pushed him on that. I asked where he thought the application lost the room, and he had a list ready, which honestly is its own kind of signal.

MilesThat he'd already rehearsed the answer.

GrantExactly. He said the traction section felt thin, twelve users at the time of submission, a demo that worked but nothing paid. He knew it going in.

MilesSo why submit?

GrantHe said the idea was strong enough to carry it,

MilesHmm.

Grantwhich is the wrong bet.

MilesCapwave laid this out pretty clearly: over 30,000 applications a batch, around 7 to 10 percent get an interview. The filter is the written application, and the thing that clears it most reliably is a real traction signal, not a strong idea. Prove someone actually wants the thing.

GrantAnd YC roaster put a sharper point on it, 12 users on May 4th and 200 weekly users by W27, that's That's a different application.

MilesSo

GrantSame idea, different company.

Mileswhat does he do now?

GrantThat's what I asked. W27 applications open in summer 2026. Why Ycroaster called it a roughly 90-day window to get the one number that would have moved the S26 app from interesting to interview.

MilesUser's Revenue or Shift Units. Pick one.

GrantHe said revenue-first paid customer in the next sixty days.

MilesDid he sound like he believed it?

GrantHe sounded like someone who needed to say a number out loud.

MilesYeah.

GrantThe hard thing is that the silence from YC isn't cruelty; it's just Valium. Thirty-thousand-plus applications; you can't write a letter to everyone who didn't make the first cut.

MilesBut that means the founder is on their own to figure out why. And most of them, I think, get it wrong; they land on the idea or the market or some wording they wish they'd changed, when the real answer is usually just not enough proof yet.

GrantAnd that's actually fixable, which brings us to the question neither founder can answer from inside their own experience. What does the room actually look like from the other side? A YC partner is next, and that's exactly where we're going.

MilesSo from the other side of the process, the picture looks completely different, Which

GrantYeah,

Miles:

Granta partner isn't reading one application, they're reading thousands. And the thing that shifts in your head when you do that, everything becomes pattern recognition.

Milesis actually useful for founders to understand because you walk in thinking you need to tell your story, but they're not really listening for the story.

GrantThey're checking signals fast. YC's own interview guide is pretty explicit about that. about this they only do two things ask questions and look at what you've built no presentations no narrative arcs and

MilesRight, and from everything we've seen, the first 90 seconds is where a lot of it happens. Can you say what you're building in one clear sentence, without jargon, without three qualifiers?

Grantif you can't do that if you stumble on the very first question you've told them something

MilesYou've told them a lot.

GrantThe YC Roaster piece made a point I keep coming back to: S26 applicants knew the W26 bar going in. RubbleFund's algorithms scored 35% of W26 companies in the top 20% of all YC alumni ever evaluated. That's a published number. These founders applied knowing what they were up against.

MilesAnd that changes the psychology of the room, right? Because a partner sitting across from an S26 candidate But it isn't grading on a curve; they just saw what the strongest batch in YC history looked like.

GrantSo the floor moved.

MilesThe floor moved. And here's what's interesting about the interview filters specifically. Roughly 20-30% of founders who make it to an interview actually get accepted per the data out there, which means if you cleared the application, you're in real contention. The interview isn't the hard part, getting the invite is.

GrantThat's the thing most founders don't internalize. They spend weeks prepping interview answers. The partner has already made a soft read before you open your mouth.

Speaker 3Yeah.

GrantThe application is the real filter.

MilesSo what actually moves the needle in the room? What makes someone stop taking notes and lean forward?

GrantI think it's when a founder knows a number they didn't rehearse, not a memorized pitch line, an actual operating fact, users, revenue, growth rate that they can defend when pushed.

MilesThat's the thing most founders don't internalize. They spend weeks prepping interview answers. The partner has already.

GrantExactly. And our rejected founder had twelve users. produce no revenue; he couldn't produce that number because it wasn't there yet.

Mileswhich is honest and fixable.

GrantMm-hmm.

MilesYC. Roaster's framing for YC. W27 is pretty direct: use the next sixty days to get the one number that would have made S26 a yes.

GrantOne number. Not a pivot. Not a rebrand. One number that didn't exist in May.

MilesThat's the whole assignment.

GrantSo we've got one founder who produced the number, survived the four second silence,

Speaker 4and then got the number.

GrantGot the phone call and one who didn't and is sitting with ninety days in the blank spreadsheet.

MilesBoth of them are still moving. We'll find out where. So both founders got their answer.

GrantSame process, opposite outcomes.

MilesThe accepted founder told us the call came that evening; not an email, a call, and the first thing she said was she didn't believe it was real until the partner started talking about July.

GrantJuly meaning the batch actually starts; S26 runs July through September in San Francisco-that's when it gets concrete.

MilesAnd here's the thing about what happens immediately after acceptance: Acceptance-the money moves fast. According to Y Combinator directly, they invest $500,000 in every accepted company before the batch even begins.

GrantTwo separate SAFEs—Capwave laid this out—one hundred and twenty five k on a post money SAFE for seven per cent equity and three hundred and seventy five k on an uncap SAFE with an MFN provision.

Speaker 5Mm-hmm.

GrantYou're not waiting for Demo Day, that capital hits before you set foot in the building.

MilesWhich changes the psychology immediately. You go from pitching into a void to having a partner, a group, weekly dinners, founders of Airbnb and Stripe walking in to tell you it actually happened in year one.

Speaker 6She said:

MilesThe first week felt disorienting—not bad, just the scale of what she just walked into hadn't caught up yet.

GrantRight; and Demo Day isn't until September tenth; she's got three months to become a different company before investors see her.

MilesMeanwhile the other found her.

GrantJune second came and went—no email. He knew; he told us he'd known about a week before it was official, because he'd stopped checking.

MilesThat detail got me. Stopping the refresh is its own kind of answer.

GrantSo what has he done in the thirty days since the window closed?

MilesHe shipped-that's the honest summary. He went from twelve users and no paid revenue to-he wouldn't give us an exact number, but he said he has paying customers now.

GrantWhich is the number he couldn't defend in the application.

MilesExactly-and YCroaster put this plainly-you have roughly ninety days between S26 closing and W27 opening.

GrantYeah. Yeah!

MilesThat window is the whole game for Founders in his position.

GrantIs he rebuilding for W27 or is he reconsidering everything?" I asked him.

MilesAnd?

GrantHe paused a long time; then said "Both," depending on the week.

MilesQuietly, that's the most honest answer he's given us.

GrantThat's the whole story of year one right there: the accepted founder is four weeks from the batch; the rejected founder is somewhere inside that pause, neither story is finished.

MilesNot even close.

GrantOkay, so two founders, one decision window, two completely different June seconds. That cold open still gets me.

MilesYeah, one phone call, one silence, and honestly, the silence hit harder.

GrantRight, and then the interview reconstruction, the four seconds after that traction question, that's the whole thing, right? You don't lose YC in the answer, you lose it in the pause.

MilesTotal fooling out it, too. They're not listening to your words. They're watching whether you hold. Bold!

GrantThat's the one sentence I'd take out of this whole episode, honestly.

MilesSame. Look, if you know a YC founder in year one who tell their story honestly, send them to Year One at heyMatto dot com.

GrantAnd if this episode helped you think about startups differently, leave a review. It actually moves the needle for us.

MilesThanks for being here, Maus.

GrantThanks everyone. We'll see you next week.