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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Sports
Chicago Cubs vs. Boston Red Sox
polymarket

Who will win Chicago Cubs vs Boston Red Sox?

Volume:
$738,073

O/U 6.5

 - Polymarket

O/U 6.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 25, 2026

Closed: Sep 25, 3:54 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

O/U 6.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$43,896
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

100%
10%
Yes 100¢No 0¢
0.1¢
N/A
$3,798
N/A
N/A
N/A
2d 18h 44m
Yes
polymarket

Chicago Cubs vs. Boston Red Sox

0%
48%
Yes 0¢No 100¢
—
N/A
$638,246
N/A
N/A
N/A
2d 18h 44m
Yes
polymarket

O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
$11,143
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

0%
Yes 0¢No 100¢
—
N/A
$9,546
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$8,686
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

0%
Yes 0¢No 100¢
—
N/A
$8,141
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
$7,053
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
$6,000
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

0%
Yes 0¢No 100¢
—
N/A
$1,564
N/A
N/A
N/A
Settled
Yes
Total markets: 10

Intro

This market tracks whether the total runs scored in the Chicago Cubs versus Boston Red Sox game will be Over/Under 6.5 runs. Currently, Polymarket gives a 100.0% probability to “Chicago Cubs vs. Boston Red Sox: O/U 6.5”. Resolution will be based on the official results reported on https://www.mlb.com/. Keep an eye on the game itself, scheduled for September 27 at 3:05PM ET, as the final score will determine the outcome of this market.

Polymarket

In the upcoming MLB game between the Chicago Cubs and Boston Red Sox, scheduled for September 27 at 3:05PM ET: This market will resolve to "Chicago Cubs" if the Chicago Cubs win the game. This market will resolve to "Boston Red Sox" if the Boston Red Sox win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Frequently asked questions

On Polymarket, the dashboard for the Cubs vs. Red Sox game tracks the current odds, price history, and 24-hour trading volume. Currently, the total volume for this market is $729,496, with $734,701 traded in the last 24 hours. The dashboard provides a visual representation of how traders are pricing the likelihood of different outcomes in this contest. You can see how the probabilities have shifted over time and gauge the market’s sentiment regarding the matchup. This allows for a clear understanding of where the crowd stands on the potential result.

Prediction market odds often reflect the wisdom of the crowd, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and aim to balance action on both sides, while this market allows anyone to express their belief about the outcome. If a significant number of informed bettors believe a sportsbook has mispriced the game, we may see divergence between the two. It’s common to observe that prediction markets, especially closer to the event, can be more accurate than initial sportsbook lines, as they incorporate a wider range of perspectives and information.

On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the probability of that outcome occurring. As more people buy shares in a particular outcome, its price increases, reflecting a higher perceived probability. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is determined entirely by supply and demand, with traders adjusting their positions based on new information and their own analysis of the Cubs vs. Red Sox game. This dynamic pricing ensures the market reflects the collective intelligence of its participants.

This market resolves around Oct 2, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result of the Cubs vs. Red Sox game, as reported by official sources, will determine the winning share. The platform will verify the final score and declare the outcome accordingly. It’s important to note that the resolution process relies on publicly available data and established sports reporting standards. Traders should monitor official announcements to stay informed about the event’s progress and potential resolution triggers.

Several factors could influence the price of shares in this market. Any news regarding key player injuries, changes in pitching matchups, or weather forecasts could significantly shift trader sentiment. Unexpected performance in preceding games, or even significant media coverage discussing team morale or strategy, could also impact the market. Furthermore, large-volume trades by informed bettors can create momentum and drive price fluctuations. Monitoring these signals and staying up-to-date on the latest developments surrounding the Cubs vs. Red Sox game is crucial for understanding potential market movements.