TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Mr. Olympia 2026: Men’s Open Winner
polymarket
kalshi

Who will win Mr. Olympia 2026?

Volume:
$15,325

Nick Walker

all

2 markets

Kalshi

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 27, 2026

Closed: Sep 27, 8:25 AM 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

Nick Walker

View
100%
20%
Yes 100¢No 0¢
100¢
N/A
$3,076
N/A
N/A
$2,285
Settled
Yes
polymarket

Nick Walker

100%
25%
Yes 100¢No 0¢
1¢
N/A
$1,227
N/A
N/A
N/A
Settled
Yes
kalshi

Derek Lunsford

0%
51%
Yes 0¢No 100¢
100¢
N/A
$3,597
N/A
N/A
$2,303
Settled
No
polymarket

Derek Lunsford

0%
43%
Yes 0¢No 100¢
—
N/A
$1,413
N/A
N/A
N/A
Settled
No
kalshi

Samson Dauda

0%
98%
Yes 0¢No 100¢
100¢
N/A
$1,831
N/A
N/A
$1,588
Settled
No
polymarket

Samson Dauda

0%
66%
Yes 0¢No 100¢
—
N/A
$513
N/A
N/A
N/A
Settled
No
kalshi

Chinedu Obiekea

0%
1%
Yes 0¢No 100¢
100¢
N/A
$944
N/A
N/A
$768
Settled
No
polymarket

Chinedu Obiekea

0%
37%
Yes 0¢No 100¢
—
N/A
$244
N/A
N/A
N/A
Settled
No
polymarket

Edward Kargbo

0%
3%
Yes 0¢No 100¢
—
N/A
$317
N/A
N/A
N/A
Settled
No
kalshi

Edward Kargbo

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Quinton Eriya

0%
Yes 0¢No 100¢
—
N/A
$277
N/A
N/A
N/A
Settled
No
kalshi

Quinton Eriya

0%
4%
Yes 0¢No 100¢
100¢
N/A
$20
N/A
N/A
$20
Settled
No
polymarket

Hadi Choopan

0%
Yes 0¢No 100¢
—
N/A
$273
N/A
N/A
N/A
Settled
No
polymarket

Shaun Clarida

0%
Yes 0¢No 100¢
—
N/A
$156
N/A
N/A
N/A
Settled
No
polymarket

Sergei Danilov

0%
2%
Yes 0¢No 100¢
—
N/A
$123
N/A
N/A
N/A
Settled
No
kalshi

Sergey Danilov

0%
3%
Yes 0¢No 100¢
100¢
N/A
$7
N/A
N/A
$6
Settled
No
polymarket

Sasan Heirati

0%
3%
Yes 0¢No 100¢
—
N/A
$123
N/A
N/A
N/A
Settled
No
kalshi

Sasan Heirati

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

William Bonac

0%
Yes 0¢No 100¢
—
N/A
$123
N/A
N/A
N/A
Settled
No
kalshi

William Bonac

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Patrick Moore

0%
Yes 0¢No 100¢
—
N/A
$123
N/A
N/A
N/A
Settled
No
kalshi

Patrick Moore

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Martin Fitzwater

0%
Yes 0¢No 100¢
—
N/A
$98
N/A
N/A
N/A
Settled
No
kalshi

Martin Fitzwater

0%
4%
Yes 0¢No 100¢
100¢
N/A
$5
N/A
N/A
$5
Settled
No
polymarket

Brandon Curry

0%
2%
Yes 0¢No 100¢
—
N/A
$93
N/A
N/A
N/A
Settled
No
Total markets: 25 of 52

Description

This group forecasts the winner of the Men’s Open division at the 2026 Mr. Olympia bodybuilding competition. The event is scheduled for September 26, 2026, in Las Vegas. Resolution relies on the official results announced by Olympia Productions and the IFBB Professional League.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both platforms consistently resolve to 'Yes' if the listed athlete wins the 2026 Mr. Olympia Men’s Open title according to official results.Primary resolution logic: Official Mr. Olympia website (https://mrolympia.com/) and Olympia Productions

Core resolution logic:

  • The market resolves to 'Yes' for the athlete officially declared the winner of the 2026 Mr. Olympia Men’s Open title.
  • In the event of a tie, the official tie-break procedure used by the judges will determine the winner.
  • If an athlete withdraws or is disqualified before the start of the finals, the corresponding market resolves to 'No'.

Edge cases & clarifications:

  • No Winner Declared: If no winner is declared by December 31, 2026, 11:59 PM ET, the market will resolve to 'Other'.
  • Tie: The official tie-break procedure used by the judges will determine the winner in the event of a tie according to the official IFBB Professional League scoring system.
Timing: Resolution will occur after the official announcement of the winner of the 2026 Mr. Olympia Men’s Open finals, expected on or around September 26, 2026, but no later than December 31, 2026, 11:59 PM ET.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

The Mr. Olympia competition is presented annually by Olympia Productions to honor outstanding achievements in professional bodybuilding. The 2026 Olympia in Las Vegas is scheduled for September 24–27, 2026, with the Men’s Open finals on September 26, 2026. This market will resolve according to the listed bodybuilder who wins the 2026 Mr. Olympia Men’s Open title. In the event of a tie according to the official IFBB Professional League scoring system, this market will resolve according to the official tie-break procedure used by the judges to determine the winner. If the listed bodybuilder withdraws or is disqualified before the start of the finals, the corresponding market will immediately resolve to "No". If, for any reason, no winner is declared by December 31, 2026, 11:59 PM ET, this market will resolve to "Other". The primary resolution source for this market will be official information from the Mr. Olympia website (https://mrolympia.com/) and Olympia Productions, including the live broadcast of the event; however, a consensus of credible reporting will also be used.

Kalshi

If Chinedu Obiekea wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Leandro Sencini Peres wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Tonio Burton wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Mohamed Foda wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Jordan Hutchinson wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Quinton Eriya wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Martin Fitzwater wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Michal Krizanek wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Regan Grimes wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Sasan Heirati wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If James Hollingshead wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Damian Kuffel wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Brandon Curry wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Sergey Danilov wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Samson Dauda wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Patrick Moore wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If William Bonac wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Behrooz Tabani Abarghani wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Edward Kargbo wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Nick Walker wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Andrea Presti wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes. If Derek Lunsford wins the 2026 Mr. Olympia (Men's Open), then the market resolves to Yes.

Frequently asked questions

Prediction market odds often reflect the wisdom of the crowd, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market is driven by individuals willing to put their capital behind their beliefs. The difference between prediction market probabilities and sportsbook odds can sometimes signal opportunities for arbitrage, though transaction costs and market liquidity should be considered. It’s also common to see prediction markets react more quickly to new information and changing sentiment surrounding the Mr. Olympia championship.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Prices on Polymarket and Kalshi may differ due to variations in user base, market design, and trading volume. Each platform attracts a different set of participants with potentially varying levels of expertise and information. Polymarket might have a higher concentration of casual bettors, while Kalshi could attract more sophisticated traders. Additionally, the specific rules and fees associated with each platform can influence trading behavior and price discovery. These factors contribute to the observed discrepancies in probabilities for the Mr. Olympia championship.

Several factors could significantly impact this market before the Mr. Olympia championship takes place. Major injuries to leading contenders, changes in their training regimens, or controversies surrounding performance-enhancing drugs are all potential catalysts. Public appearances, interviews, and social media activity from athletes could also shift sentiment. Furthermore, results from qualifying events and pre-Olympia competitions will provide valuable insights into each competitor's form and could influence trading activity. Any unexpected developments in the lead-up to the event have the potential to cause substantial movement in this market.