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OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

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MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

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UFC Fight Night: Melissa Gatto vs. Dione Barbosa (Women's Flyweight, Prelims)
polymarket
kalshi

UFC Fight Night: Melissa Gatto vs. Dione Barbosa (Women's Flyweight, Prelims)

Volume:
$339,472

Dione Barbosa

 - Kalshi

Dione Barbosa - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Apr 5, 2026

Closed: Apr 4, 9:00 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Dione Barbosa

View
100%
Yes 100¢No 0¢
—
N/A
$70,960
N/A
N/A
$62,570
Settled
Yes
polymarket

Fight to Go the Distance?

100%
Yes 100¢No 0¢
—
N/A
$2,042
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 2.5 Rounds

100%
Yes 100¢No 0¢
—
N/A
$248
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 1.5 Rounds

100%
Yes 100¢No 0¢
—
N/A
$205
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 0.5 Rounds

100%
Yes 100¢No 0¢
—
N/A
$117
N/A
N/A
N/A
Settled
Yes
polymarket

Melissa Gatto vs. Dione Barbosa

0%
Yes 0¢No 100¢
—
N/A
$234,521
N/A
N/A
N/A
Settled
No
kalshi

Melissa Gatto

0%
Yes 0¢No 100¢
—
N/A
$29,118
N/A
N/A
$27,555
Settled
No
polymarket

Fight won by submission?

0%
Yes 0¢No 100¢
—
N/A
$1,056
N/A
N/A
N/A
Settled
No
polymarket

Barbosa to win by KO/TKO?

0%
Yes 0¢No 100¢
—
N/A
$1,017
N/A
N/A
N/A
Settled
No
polymarket

Gatto to win by KO/TKO?

0%
Yes 0¢No 100¢
—
N/A
$154
N/A
N/A
N/A
Settled
No
polymarket

Fight won by KO/TKO?

0%
Yes 0¢No 100¢
—
N/A
$36
N/A
N/A
N/A
Settled
No
Total markets: 11

Description

Melissa Gatto and Dione Barbosa will compete in a women's flyweight preliminary bout at UFC Fight Night: Moicano vs. Duncan on April 4, 2026. Markets cover fight outcome (winner), method of victory (KO/TKO, submission, decision), fight duration (round thresholds), and whether the bout reaches full scheduled rounds. All resolution depends on official UFC scoring and bout status.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Polymarket provides comprehensive market definitions with detailed resolution rules, edge cases, and tie-breaking logic across 9 distinct markets, while Kalshi provides only a single binary market with incomplete resolution criteria that fails to address method of victory, fight duration, or contingency scenarios.Hero tip: Polymarket offers granular betting on specific fight outcomes (KO/TKO, submission, distance, round duration) with explicit edge-case handling. Kalshi's single market only resolves on winner/loser and lacks clarity on draws, no-contests, and postponements. If you trade on Kalshi, you have no protection against ambiguous outcomes; Polymarket's detailed rules provide much higher certainty. Avoid Kalshi for this event unless you accept binary-only risk.

Critical divergence points:

  • Polymarket: Outlier: Provides 9 separate markets with granular resolution logic including winner determination, method of victory (KO/TKO vs submission), fight duration (O/U 0.5, 1.5, 2.5 rounds), and explicit edge-case handling. Each market specifies that no-contests, cancellations, or postponements beyond April 18, 2026 resolve to 50-50, and technical decisions/draws are treated distinctly. Key quote: 'If the bout is ruled a No Contest, not scored, canceled, or postponed beyond April 18, 2026, this market will resolve 50-50.'
  • Kalshi: Outlier: Provides only a single binary market that resolves YES if either Dione Barbosa or Melissa Gatto wins, with no specification of how draws, no-contests, technical decisions, postponements, or cancellations are handled. The market description contains no contingency clauses, no timing boundaries, and no method-of-victory distinctions. Key quote: 'If Dione Barbosa wins the Barbosa vs Gatto professional MMA fight originally scheduled for Apr 4, 2026, then the market resolves to Yes.'
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.