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UFC 331: Michael Aswell vs. JooSang Yoo (Featherweight, Prelims)
polymarket
kalshi

What is the result of Michael Aswell vs. JooSang Yoo?

Volume:
$2,582,033

Michael Aswell

 - Kalshi

Michael Aswell - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 22, 2026

Closed: Sep 19, 8:04 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

Michael Aswell

View
100%
65%
Yes 100¢No 0¢
100¢
N/A
$1,038,488
N/A
N/A
$719,290
Settled
Yes
polymarket

Michael Aswell vs. JooSang Yoo

View
100%
65%
Yes 100¢No 0¢
0.1¢
N/A
$395,753
N/A
N/A
N/A
Settled
Yes
polymarket

Fight to Go the Distance?

View
100%
41%
Yes 100¢No 0¢
0.1¢
N/A
$3,248
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 2.5 Rounds

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$639
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 0.5 Rounds

View
100%
9%
Yes 100¢No 0¢
0.1¢
N/A
$69
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 1.5 Rounds

View
100%
27%
Yes 100¢No 0¢
1¢
N/A
$1
N/A
N/A
N/A
Settled
Yes
kalshi

Joo Sang Yoo

View
0%
66%
Yes 0¢No 100¢
100¢
N/A
$1,139,955
N/A
N/A
$770,071
Settled
No
polymarket

Yoo to win by KO/TKO?

View
0%
22%
Yes 0¢No 100¢
—
N/A
$3,025
N/A
N/A
N/A
Settled
No
polymarket

Fight won by KO/TKO?

View
0%
41%
Yes 0¢No 100¢
—
N/A
$304
N/A
N/A
N/A
Settled
No
polymarket

Aswell to win by KO/TKO?

View
0%
9%
Yes 0¢No 100¢
—
N/A
$277
N/A
N/A
N/A
Settled
No
polymarket

Yoo in Round 1

View
0%
Yes 0¢No 100¢
—
N/A
$105
N/A
N/A
N/A
Settled
No
polymarket

Ends before Round 2?

View
0%
4%
Yes 0¢No 100¢
—
N/A
$83
N/A
N/A
N/A
Settled
No
polymarket

Yoo in Round 2

View
0%
9%
Yes 0¢No 100¢
—
N/A
$77
N/A
N/A
N/A
Settled
No
polymarket

Fight won by submission?

View
0%
Yes 0¢No 100¢
—
N/A
$10
N/A
N/A
N/A
Settled
No
polymarket

Fight won by decision?

View
100%
Yes 100¢No 0¢
1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Ends before Round 3?

View
0%
12%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Aswell in Round 1

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

Aswell in Round 2

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

Aswell in Round 3

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

Yoo in Round 3

View
0%
13%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Decision or Draw

View
100%
Yes 100¢No 0¢
0.8¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 21

Description

This group covers various markets related to the UFC 331 featherweight fight between Michael Aswell and JooSang Yoo, scheduled for September 19, 2026. Markets include the overall winner, method of victory (KO/TKO, submission, decision), round-based outcomes, and fight duration.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi markets lack a resolution path for draws, no contests, or cancellations, while Polymarket provides a 50-50 resolution in those scenarios.Hero tip: Consider the likelihood of a draw, no contest, or cancellation when trading these markets. Polymarket offers a hedge against these outcomes that Kalshi does not.

Critical divergence points:

  • Polymarket: Resolves to the official UFC winner, including a 50-50 resolution for draws, no contests, or cancellations beyond October 3, 2026.
  • Kalshi: Resolves solely on which fighter is declared the winner, with no explicit resolution path for draws, no contests, or cancellations.
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.

Polymarket

This market will resolve to "Michael Aswell" if Michael Aswell is officially declared the winner of the fight against JooSang Yoo at UFC 331: Van vs. Pantoja 2, scheduled for September 19, 2026. It will resolve to "JooSang Yoo" if JooSang Yoo is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond October 3, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.

Kalshi

If Michael Aswell wins the Aswell vs Yoo professional MMA fight originally scheduled for Sep 19, 2026, then the market resolves to Yes. If Joo Sang Yoo wins the Aswell vs Yoo professional MMA fight originally scheduled for Sep 19, 2026, then the market resolves to Yes.