TOTAL VOLUME:

$134b

24H VOL:

$103,397,351

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,410,176,180

399,592

Markets across

30,097

events

MATCHED EVENTS:

2,622

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Insights
Indices
Tour
All
Trending
Breaking
New
Ending Soon
Politics
Sports
Crypto
Companies
Elections
Financials
Economics
Other
Entertainment
Science and Technology
Tampa Bay Rays vs. Kansas City Royals
polymarket
kalshi
predict

Who will win Tampa Bay Rays vs Kansas City Royals?

Volume:
$655,646

Tampa Bay Rays vs. Kansas City Royals

all

2 markets

Polymarket

Predict

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 3, 2026

Closed: Jul 9, 7:40 PM EST

polymarket

Polymarket

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

Tampa Bay Rays vs. Kansas City Royals

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$577,485
N/A
N/A
N/A
Settled
Yes
predict

Tampa Bay Rays vs. Kansas City Royals

View
N/A
N/A
—
N/A
$1,891
N/A
N/A
N/A
Settled
No
polymarket

Spread -2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$13,532
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$11,914
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$589
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
100%
Yes 100¢No 0¢
1¢
N/A
$250
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$240
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 5.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$198
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$88
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 3.5

View
100%
Yes 100¢No 0¢
1¢
N/A
$78
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$10
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
0%
Yes 0¢No 100¢
—
N/A
$27,068
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

View
0%
Yes 0¢No 100¢
—
N/A
$13,400
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

View
0%
Yes 0¢No 100¢
—
N/A
$6,367
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

View
0%
Yes 0¢No 100¢
—
N/A
$613
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

View
0%
Yes 0¢No 100¢
—
N/A
$521
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 12.5

View
0%
Yes 0¢No 100¢
—
N/A
$389
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

View
0%
Yes 0¢No 100¢
—
N/A
$370
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$329
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -4.5

View
0%
Yes 0¢No 100¢
—
N/A
$113
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

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

Extra Innings

View
0%
Yes 0¢No 100¢
—
N/A
$35
N/A
N/A
N/A
Settled
No
kalshi

Game goes to extra innings

View
0%
Yes 0¢No 100¢
100¢
N/A
$17
N/A
N/A
$17
Settled
No
polymarket

O/U 13.5

View
0%
Yes 0¢No 100¢
—
N/A
$30
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$17
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 26

Description

This event group covers an MLB game between the Tampa Bay Rays and Kansas City Royals scheduled for July 2, 2026 at 7:40 PM ET. Markets span three distinct questions: the game winner, whether a run is scored in the first inning, and whether the game goes to extra innings.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Three distinct markets with different settlement triggers and scopes. Polymarket and Predict align on winner resolution, but Kalshi's extra innings market has incomplete edge case documentation. First inning market is unique to Polymarket.Hero tip: These are three separate markets, not variants of one market. Winner markets (Polymarket, Predict) and extra innings market (Kalshi) can both settle in the same game. First inning market (Polymarket) settles independently based only on inning 1 scoring. Verify you are trading the correct market ID before the 7:40 PM ET start time.

Critical divergence points:

  • Polymarket: Two distinct markets: (1) Winner resolves to 'Tampa Bay Rays' or 'Kansas City Royals' if that team wins; resolves 50-50 if canceled with no makeup or ends in tie. (2) First Inning Run resolves Yes if any run scored in inning 1, No if zero runs. Both remain open if postponed until makeup game is played. Key quote: 'If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.'
  • Kalshi: Extra Innings market resolves Yes if game goes to extra innings (beyond 9 innings). No explicit documentation of tie, cancellation, or postponement handling. Key quote: 'If Tampa Bay and Kansas City go to extra innings in the Tampa Bay vs Kansas City professional baseball game originally scheduled for Jul 2, 2026 at 7:40 PM EDT, then the market resolves to Yes.' (No No resolution or edge case language provided.)
  • Predict: Winner market resolves to 'Tampa Bay Rays' or 'Kansas City Royals' if that team wins; resolves 50-50 if canceled with no makeup or ends in tie. Remains open if postponed until makeup game is played. Identical to Polymarket winner logic. Key quote: 'If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50.'
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 Tampa Bay Rays and Kansas City Royals, scheduled for July 2 at 7:40PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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

If Tampa Bay and Kansas City go to extra innings in the Tampa Bay vs Kansas City professional baseball game originally scheduled for Jul 2, 2026 at 7:40 PM EDT, then the market resolves to Yes.

Predict

In the upcoming MLB game between the Tampa Bay Rays and Kansas City Royals, scheduled for July 2 at 7:40PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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

Prediction markets and sportsbooks price games differently because they serve distinct purposes. Sportsbooks set odds to balance liability and extract a margin, while prediction markets reflect pure trader conviction without a built-in spread. This market aggregates amateur and professional traders globally, often revealing sharp consensus that differs from traditional sportsbook lines. Comparing this market's implied probability to major sportsbook odds can highlight value opportunities. Prediction markets tend to adjust faster to breaking news and late-breaking information, making them useful for spotting line movement before books react.

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. Each platform attracts different trader demographics, liquidity pools, and fee structures, which naturally creates price variation. Polymarket may have deeper liquidity in baseball markets, while Kalshi draws traders with different risk appetites or information sets. Arbitrage opportunities between venues are often fleeting due to withdrawal delays and platform fees. Monitoring both prices helps traders spot temporary mispricings and understand which platform's consensus is more robust. Over time, prices tend to converge as informed traders exploit gaps.

Key catalysts include injury announcements to star players, bullpen availability, recent team form, and weather conditions at game time. Lineup changes announced hours before first pitch often trigger sharp repricing. Betting market movement at sportsbooks can signal sharp action and precede prediction market shifts. Breaking news about roster decisions, trades, or coaching changes may also influence trader positioning. Monitor sports news feeds and team social media for updates that could shift the probability landscape before this market closes.