Seattle Mariners vs. New York Yankees: 1st 5 Innings O/U 4.5
Over — market-implied probability
50.5%▼ -7.5 points in 24h
Under 49.5%
$50lifetime volume
$5024h volume
$115Kliquidity
Over is trading at 50.5% on Polymarket, down 7.5 points in the last 24 hours. $50 traded over the market’s life, $50 of it in the last day. It resolves today, 12 August 2026.
By volume it is number 676 of the 689 open sports markets on the board, and $50 of that traded in the last day.
Current odds
| Over | 50.5% | |
|---|---|---|
| Under | 49.5% |
Prices are the market’s implied probability: a contract at 62% costs 62 cents and pays $1 if it resolves true.
Market activity
$50Lifetime volume
traded over the market's life.
$5024h volume
traded in the last day.
$115KLiquidity
resting on the order book.
Where the venue does not publish a figure, it is left out rather than shown as zero.
Market timeline
opened
resolves
Resolves today — recalculated on every 15-minute rebuild.
What does 50.5% mean?
The market is currently pricing the Over outcome at about 50.5%: a contract that pays $1 if the market resolves that way costs roughly 50.5% of its payout to buy. That number is the market-implied probability — the aggregated judgment of traders with money at stake, not a forecast by PredictionBubbles.
When the price moves, the market has repriced the question — the 24-hour figure on this page is that move in probability points, not percent. Markets can be early, late or wrong; what keeps the number honest is that anyone who disagrees can trade against it.
Where this price comes from
- Source
- Polymarket
- Type
- on-chain, Polygon
- Updated
- every 15 minutes
- Prices read
Polymarket is an on-chain venue settling in USDC on Polygon. The number above is the last traded price on this contract, pulled from the venue’s public API and refreshed every 15 minutes. This site takes no position and sets no price of its own.
To weigh it against the same question elsewhere, open the live board: it puts the busiest open Polymarket and Kalshi market side by side, sized by volume and colored by probability.
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