Mattia Bellucci wins priced at 99.0% on Kalshi, up 48 points, on $1.2M traded
PredictionBubbles' movers board lists the Bellucci win contract as the day's biggest upward move, in a sports markets category distinct from the lead — it has zero hits…
Mattia Bellucci’s win contract on Kalshi was priced at 99.0%, up 48 probability points, with $1.2M traded, in the supplied Oct 21, 2026 · 5:54 AM ET update. According to the accompanying summary of PredictionBubbles’ movers board, it was the day’s largest upward move.
A sharp repricing, with limited event detail
The figures indicate a substantial shift toward a Bellucci victory, but the supplied source extract does not include the contract’s individual listing. It provides no opponent, match details or explanation for the change, leaving the catalyst unverified.
According to PredictionBubbles, its board compares prices over 24 hours, drawing directly from Polymarket and Kalshi and updating every 15 minutes. The supplied page records a venue-data snapshot of 21 Oct 2026, 09:39 UTC.
What the ranking measures
PredictionBubbles ranks changes in probability points, rather than relative percentage gains. Trading volume and liquidity provide context but do not determine placement, so Bellucci’s reported lead reflects the size of the repricing rather than the $1.2M turnover.
The board describes a universe of 2,001 markets lasting longer than 14 days, with same-week fixtures excluded. Only open contracts with a valid 24-hour comparison qualify. Those filters matter: the ranking is not a comparison of every sports contract trading on either venue.
What it means for prediction markets
- 99.0% is a market price, not a confirmed result. The supplied material does not establish that Bellucci’s contract has settled.
- The 48-point increase measures repricing. It should not be described as a 48% relative gain.
- Volume does not explain the catalyst. The reported $1.2M traded adds activity context, but the extract supplies neither order-book depth nor event-specific reporting.
- The individual listing remains a verification gap. The headline figures and summary identify the move; the source extract explains the board’s methodology without independently displaying Bellucci’s contract details.
Sources & attribution
- [1]Predictionbubbles (predictionbubbles.net)https://predictionbubbles.net/markets/movers/
Date & time:
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