Mallory Aurichio Hits 52% After Replacement Nomination in BB28 Week 7

Mallory Aurichio landed on the Big Brother 28 block as a replacement nominee after Lala Verrett used the Power of Veto to save herself, according to OnlineBigBrother. That single move restructured the entire Week 7 elimination market on Kalshi and Polymarket, pushing Aurichio from 9% to 52% in three days.

Head of Household Dee Valladares chose Aurichio as the replacement, placing her alongside original nominees Drew Campbell and Taylor Brown. With eviction night set for August 27, prediction markets now price Aurichio as the most likely houseguest to walk out the door.

Her implied probability sits at 52% across both platforms. The period low was 8%, meaning the market has effectively reversed its entire read on Aurichio's position in the house. Kalshi prices her at 53%, while Polymarket sits at 50%, a tight 3-point spread suggesting both platforms are working from the same information rather than diverging on interpretation.

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Why Mallory Aurichio Jumped to 52% Favorite for Big Brother 28 Week 7 Elimination

The catalyst is structural, not speculative. Before the veto ceremony, Aurichio was not on the block. Her 8-9% baseline reflected a houseguest who appeared safe under the original nominations. When Verrett won the Power of Veto and removed herself, Valladares needed a replacement. Aurichio was that replacement.

The 42-point move in three days tracks the timeline of the veto competition and ceremony results leaking through Big Brother live feeds. Markets repriced rapidly once the replacement nomination became public. A move of this magnitude in a BB elimination market typically corresponds to a confirmed nomination or a house consensus forming around a target. In this case, it appears to be both.

What makes the pricing particularly notable is that Aurichio didn't just inch ahead of her co-nominees. She leaped to majority implied probability, suggesting the house vote count is expected to favor her eviction rather than Campbell's or Brown's.

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Big Brother Week 7 House Dynamics: What Put Mallory on the Block

Dee Valladares' HOH reign has been defined by what CinemaBlend called potentially "the worst case of HOH-itis" this season. Valladares has leaned into aggressive tactics, and the Icons alliance has faced backlash for bullying behavior directed at Taylor Brown. That backlash may actually have insulated Brown from being the primary eviction target, despite her original nomination.

Meanwhile, the Mosh Pit alliance, which includes Aurichio and Melody Morris, appears to be fracturing. Reports from live feeds indicate Aurichio and Morris have been discussing counter-strategies against the Icons' dominance, but those conversations suggest a defensive posture rather than offensive control of votes. When a nominee is strategizing about how to survive rather than who to target next, the market reads that as weakness.

The three-nominee structure complicates Aurichio's path. With Campbell and Brown also on the block, votes are split three ways. But the market's 52% pricing implies the house is coalescing around Aurichio as the consensus boot, likely because she represents a middle-threat target: not as polarizing as Brown (who has sympathy votes from the bullying narrative) and not as strategically useful to keep as Campbell might be for certain voting blocs.

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The Case Against Aurichio's Eviction: Why the Market Could Still Be Wrong

Three days ago, this market priced Aurichio at 9%. That baseline wasn't arbitrary. It reflected a read that she was well-positioned socially and unlikely to face the block. The replacement nomination changed the math, but it didn't erase her relationships in the house.

First, 52% is not a foregone conclusion. It means the market assigns a 48% chance she survives. In Big Brother history, replacement nominees regularly escape eviction when the house perceives them as less threatening than the original targets. Brown's controversial treatment by the Icons could generate enough sympathy to keep her safe while also making Campbell the path-of-least-resistance vote. Aurichio could benefit from being neither the most sympathetic nor the most strategic choice.

Second, late-week vote flips are a recurring feature of modern Big Brother. Live feed watchers know that Monday and Tuesday conversations frequently reshape eviction outcomes. Aurichio's active campaigning with Morris suggests she is not passively accepting her position. If Morris can rally even two or three votes, the three-way split makes a flip entirely plausible.

Third, the Icons' backlash creates an unpredictable variable. If the house decides to punish the Icons' preferred outcome, that could redirect votes away from whoever the Icons are pushing to evict. The market may be overweighting the current consensus without accounting for a late-breaking rebellion.

The honest assessment: 52% reflects genuine danger for Aurichio, but it also reflects genuine uncertainty. This is not an 80%+ lock. The spread between Kalshi (53%) and Polymarket (50%) is narrow, which means both platforms agree she's the frontrunner for eviction, but neither is pricing in a blowout vote.

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Live Odds: Mallory Aurichio's Elimination Market Ahead of Thursday's Vote

Prediction-market view

Resolved Aug 28, 2026

Final prices, venue by venue

This market settled on August 28, 2026, so nothing below is tradeable. These are the last prices each venue published before settlement, not live quotes.

Mallory Aurichio

Final YES price across 2 venues

99%final

Kalshi99¢Polymarket99.1¢

Barrett Pfeiffer

Final YES price across 2 venues

31%final

Kalshi1¢Polymarket61.7¢

Drew Campbell

Final YES price across 2 venues

4%final

Kalshi1¢Polymarket6.9¢

LaTrice Verrett

Final YES price across 2 venues

1%final

Kalshi1¢Polymarket56.8¢

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The market resolves August 27 when the live eviction airs. Aurichio's three-day price chart tells the story of a nominee who went from safe to endangered in a single veto ceremony.

At 52%, Aurichio is priced as a coin flip with a slight lean toward eviction. That framing matters for how you interpret this market. She is not a heavy favorite to leave. She is the most likely single outcome in a three-person field, which is a different kind of signal. If you believe the Icons control enough votes and want Aurichio out, the current price may actually understate her risk. If you believe the anti-Icons backlash creates chaos, 52% overstates it.

For real-time updates as the house dynamics shift before Thursday's live show, track the full field on the Big Brother Season 28 Week 7 elimination odds page. The next 48 hours of live feed activity will determine whether this market holds, pushes higher, or reverses.