TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Boston vs Tampa Bay: First 5 Spread
kalshi

Boston vs Tampa Bay: First 5 Spread

Volume:
$21,058

Boston -2.5 first 5 innings

 - Kalshi

Boston -2.5 first 5 innings - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 19, 2026

Closed: Sep 18, 8:51 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

Boston -2.5 first 5 innings

View
100%
Yes 100¢No 0¢
100¢
N/A
$8,294
N/A
N/A
$5,935
Settled
Yes
kalshi

Boston -1.5 first 5 innings

100%
69%
Yes 100¢No 0¢
100¢
N/A
$5,912
N/A
N/A
$3,694
Settled
Yes
kalshi

Tampa Bay -1.5 first 5 innings

0%
25%
Yes 0¢No 100¢
100¢
N/A
$5,056
N/A
N/A
$4,521
Settled
No
kalshi

Tampa Bay -2.5 first 5 innings

0%
Yes 0¢No 100¢
100¢
N/A
$1,797
N/A
N/A
$1,666
Settled
No
Total markets: 4

Description

This set of markets tracks the performance of Boston and Tampa Bay in the first five innings of their scheduled baseball game. Each market focuses on different run differentials to determine the outcome. The markets remain active even if the game is postponed, closing only after the rescheduled match concludes.

Kalshi

These markets evaluate whether Boston or Tampa Bay achieves a specified run differential victory within the first five innings of their professionally scheduled game on September 18, 2026. Four distinct markets exist: Tampa Bay winning by more than 2.5 runs, Tampa Bay winning by more than 1.5 runs, Boston winning by more than 1.5 runs, and Boston winning by more than 2.5 runs, all measured strictly within the first five innings. If the originally scheduled game is postponed or delayed, all markets stay open and will close only after the rescheduled game’s completion, provided the reschedule occurs within two days of the original date. No affiliation or endorsement by the governing league is implied, and all trademarks remain property of their respective owners.