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UFC Fight Night: Jamie Siraj vs. John Yannis (Bantamweight, Prelims)
polymarket
kalshi

UFC Fight Night: Jamie Siraj vs. John Yannis (Bantamweight, Prelims)

Volume:
$132,688

John Yannis

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Apr 19, 2026

Closed: Apr 18, 10:00 PM EST

kalshi

Kalshi

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

John Yannis

View
100%
Yes 100¢No 0¢
—
N/A
$43,555
N/A
N/A
$33,811
Settled
Yes
polymarket

Yannis to win by KO/TKO?

View
100%
Yes 100¢No 0¢
—
N/A
$553
N/A
N/A
N/A
Settled
Yes
polymarket

Fight won by KO/TKO?

View
100%
Yes 100¢No 0¢
—
N/A
$286
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 0.5 Rounds

View
100%
Yes 100¢No 0¢
—
N/A
$130
N/A
N/A
N/A
Settled
Yes
kalshi

Jamie Siraj

View
0%
Yes 0¢No 100¢
—
N/A
$58,177
N/A
N/A
$57,260
Settled
No
polymarket

Siraj to win by KO/TKO?

View
0%
Yes 0¢No 100¢
—
N/A
$492
N/A
N/A
N/A
Settled
No
polymarket

Jamie Siraj vs. John Yannis

View
0%
Yes 0¢No 100¢
—
N/A
$27,995
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 2.5 Rounds

View
0%
Yes 0¢No 100¢
—
N/A
$1,198
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 1.5 Rounds

View
0%
Yes 0¢No 100¢
—
N/A
$142
N/A
N/A
N/A
Settled
Yes
polymarket

Fight won by submission?

View
0%
Yes 0¢No 100¢
—
N/A
$83
N/A
N/A
N/A
Settled
No
polymarket

Fight to Go the Distance?

View
0%
Yes 0¢No 100¢
—
N/A
$77
N/A
N/A
N/A
Settled
No
Total markets: 11

Description

Jamie Siraj and John Yannis will compete in a bantamweight preliminary bout at UFC Fight Night: Burns vs. Malott on April 18, 2026. Markets cover fight outcome (moneyline), method of victory (submission, KO/TKO, decision), fight duration (round thresholds), and whether the bout goes the distance. All resolution depends on official UFC declaration of the result.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both Polymarket and Kalshi use identical resolution logic: markets resolve based on the official UFC result, with consistent handling of draws, no contests, cancellations, and postponements beyond May 2, 2026 (all resolving 50-50 or Yes/No per market type).Primary resolution logic: Official UFC information from ufc.com

Core resolution logic:

  • Fight Winner market resolves to the fighter officially declared winner by UFC; if draw, no contest, not scored, canceled, or postponed beyond May 2, 2026, resolves 50-50.
  • Submission market resolves Yes if fight ends by tapout, verbal submission, or technical submission (referee stoppage due to submission hold); No if ends by decision, KO/TKO, draw, or disqualification; 50-50 if no contest, not scored, canceled, or postponed beyond May 2, 2026.
  • KO/TKO market resolves Yes if fight ends by KO, TKO, referee stoppage, doctor stoppage, or corner stoppage; No if ends by decision, submission, draw, or disqualification; 50-50 if no contest, not scored, canceled, or postponed beyond May 2, 2026.
  • Round Over/Under markets resolve Over if fight continues past the specified round threshold (e.g., past 2:30 of Round 1 for O/U 0.5); Under if ends before threshold; 50-50 if ends exactly at threshold or if bout not scored, postponed beyond May 2, 2026, or canceled.
  • Distance market resolves Yes if fight goes full scheduled rounds and result determined by judges' scorecards (including judge-decided draws); No if ends by submission, KO/TKO, or technical decision/draw before all rounds; 50-50 if no contest, not scored, canceled, or postponed beyond May 2, 2026.
  • Fighter-specific KO/TKO markets (Siraj or Yannis) resolve Yes only if that specific fighter wins by KO/TKO; No otherwise; 50-50 if no contest, not scored, canceled, or postponed beyond May 2, 2026.

Edge cases & clarifications:

  • Exact Round Threshold: If fight ends exactly at the specified time threshold (e.g., 2:30 of Round 2 for O/U 1.5), the market resolves 50-50.
  • Technical Decision vs. Distance: Technical decisions or technical draws declared before all scheduled rounds are completed resolve No on the Distance market, even if judges' scorecards are used.
  • Judge-Decided Draw: If all scheduled rounds are completed and judges declare a draw, the Distance market resolves Yes; the Fight Winner market resolves 50-50.
  • Postponement Beyond May 2, 2026: If the bout is postponed, canceled, ruled no contest, or not scored, all markets in the group resolve 50-50.
  • Disqualification: If either fighter is disqualified, submission and KO/TKO markets resolve No; the Fight Winner market resolves 50-50.
Timing: Resolution occurs upon official UFC announcement of the fight result; all markets settle based on the final official determination from ufc.com.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.