KalshiPoliticsFinalized
Will Donald Trump attend UFC 331?
1¢
Odds history
How this market settles
- Pays Yes when
- If Donald Trump attends UFC 331, then the market resolves to Yes.
- When
- Closes 2026-09-20.
Read the full rules Kalshi publishes
If Donald Trump attends UFC 331, then the market resolves to Yes.
Attendance is confirmed if the person is reported present at the event by any Source Agency, including social media posts by the person themselves. Brief appearances or partial attendance count as attendance. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Ultimate Fighting Championship (UFC) or TKO Group Holdings. All trademarks, logos, and brand names are the property of their respective owners.
What this bet really costs you
On $100 at 1¢ you pay $6.94 in fees on Kalshi
0.07¢ per contract · 10000 contracts
On $100 at 1¢ you pay $5.94 in fees on Polymarket US
0.06¢ per contract · 10000 contracts
Exchange-side taker fees per each venue's published formula (rate × contracts × price × (1 − price)); contracts = stake ÷ price, rounded down to whole contracts. Fees peak at 50¢ and shrink toward the extremes. Most quoted cross-venue “arbs” are negative-EV after these fees; the taker-fee breakeven on a Kalshi/Polymarket pair is roughly 3.5–4¢.
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Polymarket moved 8¢ on US recession in 2026? in the last 60 minutes (12¢ → 20¢). Kalshi hasn't caught up — still sitting at 14¢.
Get alerts (opens in a new tab)Data: Kalshi id KXTRUMPUFC-26SEP-DJT · ← All tracked markets