TOTAL VOLUME:

$134.2b

24H VOL:

$134,145,987

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,441,166,947

406,422

Markets across

30,383

events

MATCHED EVENTS:

2,688

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Kansas City Royals vs. Chicago White Sox
kalshi
polymarket

Who will win Kansas City Royals vs Chicago White Sox?

Volume:
$1,082,219

O/U 2.5

 - Polymarket

O/U 2.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 27, 2026

Closed: Jun 27, 4:10 PM EST

polymarket

Polymarket

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

O/U 2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$15
N/A
N/A
N/A
Settled
Yes
kalshi

Chicago WS wins by over 1.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$400,442
N/A
N/A
$313,038
Settled
No
polymarket

Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$51,619
N/A
N/A
N/A
Settled
Yes
polymarket

Kansas City Royals vs. Chicago White Sox

View
0%
Yes 0¢No 100¢
—
N/A
$386,297
N/A
N/A
N/A
Settled
Yes
kalshi

Kansas City wins by over 1.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$104,638
N/A
N/A
$42,854
Settled
No
kalshi

Chicago WS wins by over 3.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$38,104
N/A
N/A
$31,358
Settled
No
polymarket

O/U 8.5

View
0%
Yes 0¢No 100¢
—
N/A
$22,890
N/A
N/A
N/A
Settled
Yes
kalshi

Chicago WS wins by over 2.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$22,474
N/A
N/A
$18,526
Settled
No
kalshi

Kansas City wins by over 2.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$21,090
N/A
N/A
$17,214
Settled
No
polymarket

O/U 3.5

View
0%
Yes 0¢No 100¢
—
N/A
$16,997
N/A
N/A
N/A
Settled
Yes
kalshi

Kansas City wins by over 3.5 runs

View
0%
Yes 0¢No 100¢
100¢
N/A
$6,808
N/A
N/A
$4,971
Settled
No
polymarket

Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$4,121
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

View
0%
Yes 0¢No 100¢
—
N/A
$2,531
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$1,139
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 4.5

View
0%
Yes 0¢No 100¢
—
N/A
$821
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 5.5

View
0%
Yes 0¢No 100¢
—
N/A
$750
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

View
0%
Yes 0¢No 100¢
—
N/A
$528
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

View
0%
Yes 0¢No 100¢
—
N/A
$435
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

View
0%
Yes 0¢No 100¢
—
N/A
$314
N/A
N/A
N/A
Settled
No
polymarket

1st 5 Innings O/U 4.5

View
0%
Yes 0¢No 100¢
—
N/A
$104
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 3.5

View
0%
Yes 0¢No 100¢
—
N/A
$18
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

View
0%
Yes 0¢No 100¢
—
N/A
$18
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

View
0%
Yes 0¢No 100¢
—
N/A
$18
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$15
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

View
0%
Yes 0¢No 100¢
—
N/A
$15
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 27

Description

This event group covers an MLB game between the Kansas City Royals and Chicago White Sox scheduled for June 27, 2026 at 4:10 PM EDT. Markets span moneyline (game winner), run-line spreads (full game and first 5 innings), totals (full game and first 5 innings), first-inning scoring, and extra-innings outcomes across Kalshi and Polymarket platforms.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi uses binary Yes/No run-differential thresholds (1.5, 2.5, 3.5 runs for either team), while Polymarket uses standard moneyline, spread, and total formats with explicit tie/cancellation protocols. Kalshi does not document tie or postponement handling, creating ambiguity in edge cases.Hero tip: Do not cross-hedge Kalshi and Polymarket markets on this game as if they are fungible. Kalshi's Yes outcomes require specific run margins; Polymarket's outcomes are directional (team wins or Over/Under). Verify Kalshi's tie protocol before settlement. Monitor for postponements and confirm each platform's make-up game policy.

Critical divergence points:

  • Kalshi: Six markets, each resolving Yes if either team wins by a specified run margin (1.5+, 2.5+, or 3.5+ runs). No explicit tie, cancellation, or postponement protocol documented. Example: 'If Kansas City wins by more than 2.5 runs... then the market resolves to Yes.' Logical overlap: a 3-run KC win triggers Yes on all three KC-favorable markets.
  • Polymarket: Moneyline (winner), spreads (full game and first 5 innings), totals (full game and first 5 innings), first-inning scoring, and extra-innings markets. All include explicit tie/cancellation protocol: 'If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.' Postponements keep markets open until completion.
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

In the upcoming MLB game between the Kansas City Royals and Chicago White Sox, scheduled for June 27 at 4:10PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Chicago White Sox" if the Chicago White 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.

Kalshi

The market evaluates the final run differential between the two teams. Chicago White Sox outcomes resolve to Yes if they win by more than 1.5, 2.5, or 3.5 runs respectively. Kansas City outcomes resolve to Yes if they win by more than 1.5, 2.5, or 3.5 runs respectively. Resolution is based on the final official score of the complete game as originally scheduled for June 27, 2026 at 4:10 PM EDT.

Frequently asked questions

Prediction markets operate on peer-to-peer trading rather than fixed lines set by oddsmakers. On this market, traders continuously adjust prices based on new information—lineup changes, injury reports, weather, or public sentiment. Sportsbooks, by contrast, set and manage margins to guarantee profit. Prediction market odds often reflect sharper, more dynamic pricing because traders have direct financial incentive to exploit mispricings. Comparing this market's odds to your sportsbook can reveal value opportunities or consensus divergence.

Polymarket and Kalshi use different contract designs and trader bases, which naturally produces price divergence. 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. Polymarket typically offers binary outcomes (win/loss), while Kalshi structures contracts around specific run margins, attracting different trading strategies and risk profiles. Liquidity depth, fee structures, and user demographics also vary between platforms. These differences mean identical underlying events can trade at materially different odds—a key reason multi-platform tracking reveals arbitrage signals and market inefficiencies.

Key catalysts include lineup announcements, starting pitcher confirmation, and injury updates for star players on either roster. Weather forecasts—wind direction and speed significantly impact fly-ball outcomes—often trigger sharp repricing. Betting market movement at major sportsbooks can signal professional action flowing into this market. Recent team form, head-to-head records, and bullpen availability also drive trader sentiment. Monitor sports news and team social media closely; unexpected roster changes or weather shifts in the hours before first pitch frequently create volatility.