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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Tampa Bay Rays vs. Athletics
polymarket
predict
kalshi

Who will win Tampa Bay Rays vs Athletics?

Volume:
$1,201,938

Tampa Bay Rays vs. Athletics

all

2 markets

Polymarket

Predict

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Aug 12, 2026

Closed: Aug 12, 6:07 PM EST

polymarket

Polymarket

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

Tampa Bay Rays vs. Athletics

View
100%
35%
Yes 100¢No 0¢
0.1¢
N/A
$629,749
N/A
N/A
N/A
Settled
Yes
predict

Tampa Bay Rays vs. Athletics

View
99%
34%
Yes 99¢No 1¢
—
$9,911
$68,215
N/A
N/A
N/A
Settled
No
polymarket

O/U 9.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$300,677
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$67,612
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$49,192
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$29,429
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5,525
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
$883
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$860
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$415
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$163
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$12
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
$5
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 5.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -5.5

View
0%
Yes 0¢No 100¢
—
N/A
$34,084
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
Yes 0¢No 100¢
—
N/A
$4,356
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 13.5

View
0%
Yes 0¢No 100¢
—
N/A
$3,324
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -4.5

View
0%
Yes 0¢No 100¢
—
N/A
$3,102
N/A
N/A
N/A
Settled
Yes
kalshi

Game goes to extra innings

View
0%
Yes 0¢No 100¢
100¢
N/A
$2,565
N/A
N/A
$2,561
Settled
No
polymarket

Extra Innings

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

NRFI

View
0%
47%
Yes 0¢No 100¢
—
N/A
$1,095
N/A
N/A
N/A
Settled
No
polymarket

Spread -2.5

View
0%
Yes 0¢No 100¢
—
N/A
$310
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -6.5

View
0%
Yes 0¢No 100¢
—
N/A
$222
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 12.5

View
0%
Yes 0¢No 100¢
—
N/A
$77
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 14.5

View
0%
Yes 0¢No 100¢
—
N/A
$43
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 29

Intro

This market tracks whether the total runs scored in the upcoming MLB game between the Tampa Bay Rays and the Athletics will be over or under 9.5 runs, with the consensus currently at 100.0% for the over 9.5 runs outcome, aggregated from Polymarket, Predict, and Kalshi, and will resolve using official final statistics from MLB.com. The key catalyst to monitor is the game itself, scheduled for August 12 at 3:05 PM ET, which will determine the final run total.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms use the same core resolution logic based on official MLB statistics or credible reporting for tie/cancellation scenariosPrimary resolution logic: Official final statistics from MLB.com

Core resolution logic:

  • Win markets resolve to the winning team unless the game is canceled with no makeup (50-50)
  • First-inning run market resolves to Yes if any run is scored in the first inning by either team
  • Extra innings market resolves to Yes if the game goes beyond the 9th inning

Edge cases & clarifications:

  • Postponement: Markets remain open until the game is completed; if canceled with no makeup, resolve 50-50 for win markets
  • Tie: Resolves as 50-50 for win markets; first-inning and extra innings markets resolve based on actual game play
Timing: Resolution occurs when official MLB statistics are published, or within 24 hours of the scheduled game time if no official statistics are availableOur 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 Athletics, scheduled for August 12 at 3:05PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Athletics" if the Athletics 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 A's go to extra innings in the Tampa Bay vs A's professional baseball game originally scheduled for Aug 12, 2026 at 3:05 PM EDT, then the market resolves to Yes.

Predict

In the upcoming MLB game between the Tampa Bay Rays and Athletics, scheduled for August 12 at 3:05PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. This market will resolve to "Athletics" if the Athletics 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

Injuries to key players, weather delays, or last-minute roster changes could shift this market as they affect expected performance. Also, any sudden swing in recent game results involving either team may cause traders to re-evaluate probabilities, especially as the contest draws nearer. Media narratives and pitching announcements often drive short-term movement in betting interest and market prices.