TOTAL VOLUME:

$154.5b

24H VOL:

$271,200,656

24H TRANSACTIONS:

2,984,640,614

OPEN INTEREST:

$1,922,627,141

420,368

Markets across

40,352

events

MATCHED EVENTS:

4,484

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

BETA
Dashboards
Insights
Indices
API
Tour
All
Trending
Breaking
New
Ending Soon
Politics
Sports
Elections
Crypto
Companies
Financials
Economics
Other
Entertainment
Science and Technology
MLB: 4-homer game in 2026?
polymarket
kalshi

MLB: 4-homer game in 2026?

Volume:
$23,382

4+ Home runs

 - Kalshi

4+ Home runs - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 28, 2026

Closed: Oct 28, 11:25 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

4+ Home runs

View
0%
Yes 0¢No 100¢
—
N/A
$15,423
N/A
N/A
$10,240
4w 14h
No
polymarket

MLB: 4-homer game in 2026?

View
0%
93%
Yes 0¢No 100¢
—
N/A
$7,959
N/A
N/A
N/A
Settled
No
Total markets: 2

Description

This group asks whether any MLB player will hit four or more home runs in a single game during the 2026 regular season and playoffs. The market resolves to 'Yes' if a player achieves this feat, and 'No' otherwise. The resolution relies on official MLB data or a consensus of credible reporting.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

Both platforms agree that four or more home runs by a single player in any game during the 2026 MLB season (regular season and playoffs) will resolve the market to 'Yes'.Primary resolution logic: Official MLB information; consensus of credible reporting if official data is unavailable.

Core resolution logic:

  • A player must hit four or more home runs in a single MLB game.
  • The game can be part of the regular season or playoffs.
  • Inside-the-park home runs count towards the total.
  • Resolution relies on official MLB data or a consensus of credible reporting.

Edge cases & clarifications:

  • Cancelled Season: If the 2026 MLB regular season is cancelled or postponed after October 11, 2026, 11:59 PM ET, the market will resolve to 'No'.
  • Undetermined Result: If it cannot be determined if a player hit four home runs in a single game within the timeframe, the market will resolve to 'No'.
Timing: The market will resolve after the conclusion of the 2026 MLB season (regular season and playoffs), or if the season is cancelled/postponed before October 11, 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

This market will resolve to “Yes” if any player hits four or more home runs in a single game during the 2026 MLB regular season. Otherwise, this market will resolve to “No”. Four home runs by a player in any length regular season game will count toward resolution. Inside-the-park home runs will count toward a “Yes” resolution for this market. If the 2026 MLB regular season is cancelled, postponed after October 11, 2026, 11:59 PM ET, or if it cannot be determined if a player hit four home runs in a single game within that timeframe, this market will resolve to “No”. The resolution source for this market will be official information from the MLB; however, a consensus of credible reporting may also be used.

Kalshi

If any hitter records 4+ home runs in any game during the 2026 Pro Baseball season (regular season and playoffs), then the market resolves to Yes.

Frequently asked questions

Several factors could influence trading activity in this market. Major injuries to power hitters, rule changes affecting offensive output in MLB, or significant shifts in player performance during the 2026 season could all move the odds. News regarding ballpark factors – such as changes to dimensions or playing conditions – could also impact trader sentiment. Additionally, strong performances by up-and-coming players demonstrating exceptional power could increase the perceived probability of a 4-homer game, leading to changes in volume and price on both Polymarket and Kalshi.