Who will attend the next US x Iran diplomatic meeting?

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Market context

The current **0%** crowd-implied probability is an extreme underdog price for a market that only needs the named person to show up at the next US-Iran diplomatic meeting by 30 June 2026. In practice, the favourite is the participant with the clearest standing role in the talks, usually the foreign minister or special envoy already used in previous rounds, while more political or symbolic figures are the obvious underdogs because attendance depends on a fresh decision rather than a standing mandate. The consensus read from recent reporting is that US-Iran engagement has continued through mediated sessions, with the latest rounds described as direct or indirect but still active, which keeps the event itself plausible even if the exact attendee list remains fluid.[1][4][6]

Historical comparables point to a market that can move sharply on process news rather than policy breakthroughs. Earlier rounds in 2025–2026 included talks in Oman, Geneva and Pakistan, often with the same small cast repeated across sessions: Steve Witkoff for the US and Abbas Araghchi for Iran, with mediation by Oman or Pakistan.[4][6][7] That pattern matters because prediction markets on attendance tend to price continuity: when a negotiator has been publicly named across multiple rounds, they become the favourite; when reporting mentions only that talks will “resume soon” or that technical sessions are pending, the underdog side gains value if a new venue or a higher-level delegation is announced at short notice.[4][5]

For traders, the key catalysts are any formal readout from Washington or Tehran, plus mediator statements from Oman or another host confirming date, place and delegation rank. Reuters-style schedule notes, foreign ministry briefings and White House press guidance are the main dependency chain, because a last-minute venue change or shift from direct to mediated talks can alter who is actually present.[4][5] The contrarian angle is that 0% may be too aggressive if the market has not yet fully priced a routine recurrence of the same negotiators; the orthodox view is that absent a named invitation or itinerary, attendance by any specific individual remains a low-conviction outcome.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Who will attend the next US x Iran diplomatic meeting? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Who Will Win — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Who Will Win, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.