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Live prediction market odds for BAFTA Film Awards: Best Supporting Actress Winner. Compare prices across Kalshi and Polymarket.

MARKET RESOLVEDKalshi / Polymarket
Resolved 2026-02-22
This market resolved on 2026-02-22. Wunmi Mosaku was the officially declared outcome. Prior to resolution, the market peaked at 100%.
This market has resolved.
| Candidate | ![]() | ![]() |
|---|---|---|
Wunmi MosakuWINNER | 99% | 100% |
Amy Madigan | 1% | 50% |
Ariana Grande | 1% | 50% |
Brenda Blethyn | 1% | 50% |
Carey Mulligan | 1% | 50% |
Emily Watson | 1% | 50% |
Gwyneth Paltrow | 1% | 50% |
Inga Ibsdotter Lilleaas | 1% | 50% |
Odessa A’zion | 1% | 50% |
Teyana Taylor | 1% | 50% |
BAFTA Film Awards: Best Supporting Actress Winner was a prediction market event tracked across 2 platforms (Kalshi, Polymarket). Wunmi Mosaku led the market at 100% implied probability before resolution. Other contenders include Amy Madigan at 26%, Ariana Grande at 26%, Brenda Blethyn at 26%.
Wunmi Mosaku held the lead at 100% implied probability heading into resolution. Behind Wunmi Mosaku, Amy Madigan at 26% and Ariana Grande at 26% and Brenda Blethyn at 26% were the next closest contenders. The 49.0% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here were the closing odds across Kalshi, Polymarket: Wunmi Mosaku: 99¢ on Kalshi, 100¢ on Polymarket. Amy Madigan: 1¢ on Kalshi, 50¢ on Polymarket. Ariana Grande: 1¢ on Kalshi, 50¢ on Polymarket. Brenda Blethyn: 1¢ on Kalshi, 50¢ on Polymarket. The 49.0% spread across platforms highlights where markets disagreed — a gap traders can exploit by buying low on one platform and selling high on another.
A price of 100¢ meant the market estimated a 100% chance that Wunmi Mosaku would be the outcome. Traders who bought at 100¢ and held through resolution received $1.00 per share — a 0% return on their position. Those on the wrong side received $0.
Wunmi Mosaku
99.5% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi.
KalshiIf Gwyneth Paltrow has won Supporting Actress at the 79th BAFTA Awards, then the market resolves to Yes.