The Prediction Markets

Portland St. vs Idaho St.: Spread

Closes
Oct 26, 2026, in 2 days
Traded
$1K
Venues
Kalshi
Prices updated
5 min ago
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What the markets expect

Idaho St. wins by over 1.5 points 78.5%

Next is Idaho St. wins by over 4.5 points at 72%. Only Kalshi lists this market, so there is no second price to compare.

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 5 min ago. Ages are as of when this page was built.

  • Kalshi
Idaho St. wins by over 1.5 points
78.5%
Kalshi 78.5%polled, 5 min agoBest Yes 83¢ on Kalshi, $100 pays $120 (1.20x)
Kalshi
Contract
Idaho St. wins by over 1.5 points
Last price
78.5%
As of
Polled 5 min ago
Buy Yes
83¢
Sell Yes
74¢
$100 on Yes pays
$120 (1.20x)
Trade this on Kalshi
Idaho St. wins by over 4.5 points
72%
Kalshi 72%polled, 5 min agoBest Yes 74¢ on Kalshi, $100 pays $135 (1.35x)
Kalshi
Contract
Idaho St. wins by over 4.5 points
Last price
72%
As of
Polled 5 min ago
Buy Yes
74¢
Sell Yes
70¢
$100 on Yes pays
$135 (1.35x)
Trade this on Kalshi
Idaho St. wins by over 8.5 points
62%
Kalshi 62%polled, 5 min agoBest Yes 64¢ on Kalshi, $100 pays $156 (1.56x)
Kalshi
Contract
Idaho St. wins by over 8.5 points
Last price
62%
As of
Polled 5 min ago
Buy Yes
64¢
Sell Yes
60¢
$100 on Yes pays
$156 (1.56x)
Trade this on Kalshi
Idaho St. wins by over 12.5 points
55%
Kalshi 55%polled, 5 min agoBest Yes 55¢ on Kalshi, $100 pays $182 (1.82x)
Kalshi
Contract
Idaho St. wins by over 12.5 points
Last price
55%
As of
Polled 5 min ago
Buy Yes
55¢
Sell Yes
52¢
$100 on Yes pays
$182 (1.82x)
Volume
$925
Trade this on Kalshi
Idaho St. wins by over 16.5 points
46%
Kalshi 46%polled, 5 min agoBest Yes 46¢ on Kalshi, $100 pays $217 (2.17x)
Kalshi
Contract
Idaho St. wins by over 16.5 points
Last price
46%
As of
Polled 5 min ago
Buy Yes
46¢
Sell Yes
44¢
$100 on Yes pays
$217 (2.17x)
Volume
$523
Trade this on Kalshi
Idaho St. wins by over 20.5 points
36.5%
Kalshi 36.5%polled, 5 min agoBest Yes 38¢ on Kalshi, $100 pays $263 (2.63x)
Kalshi
Contract
Idaho St. wins by over 20.5 points
Last price
36.5%
As of
Polled 5 min ago
Buy Yes
38¢
Sell Yes
35¢
$100 on Yes pays
$263 (2.63x)
Trade this on Kalshi
Idaho St. wins by over 24.5 points
28.5%
Kalshi 28.5%polled, 5 min agoBest Yes 31¢ on Kalshi, $100 pays $323 (3.23x)
Kalshi
Contract
Idaho St. wins by over 24.5 points
Last price
28.5%
As of
Polled 5 min ago
Buy Yes
31¢
Sell Yes
26¢
$100 on Yes pays
$323 (3.23x)
Trade this on Kalshi
Idaho St. wins by over 28.5 points
21%
Kalshi 21%polled, 5 min agoBest Yes 31¢ on Kalshi, $100 pays $323 (3.23x)
Kalshi
Contract
Idaho St. wins by over 28.5 points
Last price
21%
As of
Polled 5 min ago
Buy Yes
31¢
Sell Yes
11¢
$100 on Yes pays
$323 (3.23x)
Trade this on Kalshi
Idaho St. wins by over 32.5 points
18%
Kalshi 18%polled, 5 min agoBest Yes 27¢ on Kalshi, $100 pays $370 (3.70x)
Kalshi
Contract
Idaho St. wins by over 32.5 points
Last price
18%
As of
Polled 5 min ago
Buy Yes
27¢
Sell Yes
9¢
$100 on Yes pays
$370 (3.70x)
Trade this on Kalshi
Idaho St. wins by over 36.5 points
15%
Kalshi 15%polled, 5 min agoBest Yes 20¢ on Kalshi, $100 pays $500 (5.00x)
Kalshi
Contract
Idaho St. wins by over 36.5 points
Last price
15%
As of
Polled 5 min ago
Buy Yes
20¢
Sell Yes
10¢
$100 on Yes pays
$500 (5.00x)
Trade this on Kalshi
Show 3 more outcomes
Idaho St. wins by over 40.5 points
12%
Kalshi 12%polled, 5 min agoBest Yes 18¢ on Kalshi, $100 pays $556 (5.56x)
Kalshi
Contract
Idaho St. wins by over 40.5 points
Last price
12%
As of
Polled 5 min ago
Buy Yes
18¢
Sell Yes
6¢
$100 on Yes pays
$556 (5.56x)
Trade this on Kalshi
Portland St. wins by over 3.5 points
9.5%
Kalshi 9.5%polled, 5 min agoBest Yes 17¢ on Kalshi, $100 pays $588 (5.88x)
Kalshi
Contract
Portland St. wins by over 3.5 points
Last price
9.5%
As of
Polled 5 min ago
Buy Yes
17¢
Sell Yes
2¢
$100 on Yes pays
$588 (5.88x)
Trade this on Kalshi
Portland St. wins by over 7.5 points
7.5%
Kalshi 7.5%polled, 5 min agoBest Yes 14¢ on Kalshi, $100 pays $714 (7.14x)
Kalshi
Contract
Portland St. wins by over 7.5 points
Last price
7.5%
As of
Polled 5 min ago
Buy Yes
14¢
Sell Yes
1¢
$100 on Yes pays
$714 (7.14x)
Trade this on Kalshi

Who resolves this market

Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: ESPN, Kalshi using information originating from the NCAA

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Idaho St. wins by over 1.5 points
  • Idaho St. wins by over 4.5 points
  • Idaho St. wins by over 8.5 points

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Kalshi

Open on Kalshi ↗

Top of book

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Best bid
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Spread
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Best ask
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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

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Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (sports rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Portland St. vs Idaho St.: Spread". Idaho St. wins by over 1.5 points leads at 78.5%. Next is Idaho St. wins by over 4.5 points at 72%. $1K has traded across 13 outcomes on Kalshi. The market is expected to resolve by Oct 26, 2026.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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