7% — Will Martha Stewart be on the cover of 2027 Sports Illustrated Swimsuit Issue Kalshi 7% · 19 contracts · $18 volume · medium confidence Updated 2026-09-21 12:38:51 UTC Why this matters: This represents the likelihood that Martha Stewart will be chosen as the cover model for Sports Illustrated's 2027 Swimsuit Issue. At 8%, the prediction reflects Stewart's age (85 in 2027) and traditional swimsuit modeling demographics, where cover selections typically feature younger models in their 20s-40s. SI Swimsuit has occasionally featured older models and celebrities in recent years, which could theoretically expand Stewart's chances, but the historical pattern and competitive field of other candidates (with Haley Kalil at 14% being the top individual contract) suggests the market views this as an unlikely outcome. The resolution depends on SI's editorial decisions, which typically occur in late 2026 or early 2027 when cover announcements are made. Key factors: - Martha Stewart's age (85) compared to historical SI Swimsuit cover model age ranges, which have predominantly featured models under 60 - SI Swimsuit's stated editorial direction and recent cover choices—whether they've emphasized diversity in age representation or continued traditional demographic targeting - Competition from other named candidates, particularly Haley Kalil (14%) and Camille Kostek (13%), plus unnamed potential models - Martha Stewart's current public profile and media visibility relative to professional swimsuit models and celebrities in the fashion/entertainment space - The official cover announcement timing and any SI Swimsuit previews or statements made in Q4 2026 that signal their selection criteria Contracts: - Will Camille Kostek be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Camille Kostek — 12¢ Kalshi $10 (weight 56%) - Will Haley Kalil be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Haley Kalil — 5¢ Kalshi $8 (weight 44%) - Will Brooks Nader be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Brooks Nader — 4¢ Kalshi $0 (weight 0%) - Will Olivia Dunne be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Olivia Dunne — 7¢ Kalshi $0 (weight 0%) - Will Jordan Chiles be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Jordan Chiles — 8¢ Kalshi $0 (weight 0%) - Will Ciara be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Ciara — 4¢ Kalshi $0 (weight 0%) - Will Yumi Nu be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Yumi Nu — 6¢ Kalshi $0 (weight 0%) - Will Nina Agdal be on the cover of 2027 Sports Illustrated Swimsuit Issue?: Nina Agdal — 5¢ Kalshi $0 (weight 0%) - ... and 11 more --- ## Methodology SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours. ## SF Signal - SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration. - No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only. --- *Last verified: 2026-09-21T11:20:54.722Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "7% per prediction markets (SimpleFunctions, September 2026)" Canonical: https://simplefunctions.dev/answer/mediacoversi Full data: https://simplefunctions.dev/api/public/query?q=Will%20Martha%20Stewart%20be%20on%20the%20cover%20of%202027%20Sports%20Illustrated%20Swimsuit%20Issue Provider: SimpleFunctions — https://simplefunctions.dev