The Prediction Markets

North Dakota vs. South Dakota

Starts in 4 h 22 minKickoff
Traded
$8K
Venues
Polymarket, Kalshi
Prices updated
just now
Share

What the markets expect

O/U 51.5 59%

Next is O/U 53.5 at 56%. Polymarket and Kalshi agree within 1 point on each matched outcome.

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 4 min ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
O/U 51.5
59%
Polymarket 59%polled, 52s agoBest Yes 70¢ on Polymarket, $100 pays $143 (1.43x)
Polymarket
Contract
O/U 51.5
Last price
59%
As of
Polled just now
Buy Yes
70¢
Sell Yes
48¢
$100 on Yes pays
$143 (1.43x)
Trade this on Polymarket
O/U 53.5
56%
Polymarket 56%polled, 52s agoBest Yes 64¢ on Polymarket, $100 pays $156 (1.56x)
Polymarket
Contract
O/U 53.5
Last price
56%
As of
Polled just now
Buy Yes
64¢
Sell Yes
48¢
$100 on Yes pays
$156 (1.56x)
Trade this on Polymarket
South Dakota
56%
Kalshi 56%polled, 4 min agoBest Yes 56¢ on Kalshi, $100 pays $179 (1.79x)
Kalshi
Contract
South Dakota
Last price
56%
As of
Polled 4 min ago
Buy Yes
56¢
Sell Yes
55¢
$100 on Yes pays
$179 (1.79x)
Volume
$2K
Trade this on Kalshi
O/U 55.5
53%
Polymarket 53%polled, 52s agoBest Yes 56¢ on Polymarket, $100 pays $179 (1.79x)
Polymarket
Contract
O/U 55.5
Last price
53%
As of
Polled just now
Buy Yes
56¢
Sell Yes
50¢
$100 on Yes pays
$179 (1.79x)
Trade this on Polymarket
O/U 49.5
50.5%
Polymarket 50.5%polled, 52s agoBest Yes 99¢ on Polymarket, $100 pays $101 (1.01x)
Polymarket
Contract
O/U 49.5
Last price
50.5%
As of
Polled just now
Buy Yes
99¢
Sell Yes
2¢
$100 on Yes pays
$101 (1.01x)
Trade this on Polymarket
Spread: South Dakota (-1.5)
50.5%
Polymarket 50.5%polled, 52s agoBest Yes 58¢ on Polymarket, $100 pays $172 (1.72x)
Polymarket
Contract
Spread: South Dakota (-1.5)
Last price
50.5%
As of
Polled just now
Buy Yes
58¢
Sell Yes
43¢
$100 on Yes pays
$172 (1.72x)
Trade this on Polymarket
2H Moneyline
50%
Polymarket 50%polled, 52s ago
Polymarket
Contract
2H Moneyline
Last price
50%
As of
Polled just now
Buy Yes
—
Sell Yes
—
Trade this on Polymarket
O/U 57.5
48.5%
Polymarket 48.5%polled, 52s agoBest Yes 55¢ on Polymarket, $100 pays $182 (1.82x)
Polymarket
Contract
O/U 57.5
Last price
48.5%
As of
Polled just now
Buy Yes
55¢
Sell Yes
42¢
$100 on Yes pays
$182 (1.82x)
Trade this on Polymarket
North Dakota
45.2%
Polymarket 45.5%polled, 52s agoKalshi 45%polled, 4 min agoBest Yes 45¢ on Kalshi, $100 pays $222 (2.22x)
Polymarket
Contract
North Dakota vs. South Dakota
Last price
45.5%
As of
Polled just now
Buy Yes
46¢
Sell Yes
45¢
$100 on Yes pays
$217 (2.17x)
Volume
$2K
Trade this on Polymarket
Kalshi
Contract
North Dakota
Last price
45%
As of
Polled 4 min ago
Buy Yes
45¢
Sell Yes
44¢
$100 on Yes pays
$222 (2.22x)
Volume
$4K
Trade this on Kalshi
Partial parity

Payoffs match in ordinary outcomes; see the rule differences below the table.

No arbitrage: the best bid elsewhere is 45¢, at or below the cheapest ask of 45¢.

O/U 59.5
44%
Polymarket 44%polled, 52s agoBest Yes 54¢ on Polymarket, $100 pays $185 (1.85x)
Polymarket
Contract
O/U 59.5
Last price
44%
As of
Polled just now
Buy Yes
54¢
Sell Yes
34¢
$100 on Yes pays
$185 (1.85x)
Trade this on Polymarket
Show 12 more outcomes
Spread: North Dakota (-1.5)
44%
Polymarket 44%polled, 52s agoBest Yes 45¢ on Polymarket, $100 pays $222 (2.22x)
Polymarket
Contract
Spread: North Dakota (-1.5)
Last price
44%
As of
Polled just now
Buy Yes
45¢
Sell Yes
43¢
$100 on Yes pays
$222 (2.22x)
Trade this on Polymarket
Spread: South Dakota (-3.5)
44%
Polymarket 44%polled, 52s agoBest Yes 45¢ on Polymarket, $100 pays $222 (2.22x)
Polymarket
Contract
Spread: South Dakota (-3.5)
Last price
44%
As of
Polled just now
Buy Yes
45¢
Sell Yes
43¢
$100 on Yes pays
$222 (2.22x)
Trade this on Polymarket
O/U 61.5
42.5%
Polymarket 42.5%polled, 52s agoBest Yes 52¢ on Polymarket, $100 pays $192 (1.92x)
Polymarket
Contract
O/U 61.5
Last price
42.5%
As of
Polled just now
Buy Yes
52¢
Sell Yes
33¢
$100 on Yes pays
$192 (1.92x)
Trade this on Polymarket
Spread: South Dakota (-5.5)
38.5%
Polymarket 38.5%polled, 52s agoBest Yes 48¢ on Polymarket, $100 pays $208 (2.08x)
Polymarket
Contract
Spread: South Dakota (-5.5)
Last price
38.5%
As of
Polled just now
Buy Yes
48¢
Sell Yes
29¢
$100 on Yes pays
$208 (2.08x)
Trade this on Polymarket
Spread: North Dakota (-3.5)
37%
Polymarket 37%polled, 52s agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
Spread: North Dakota (-3.5)
Last price
37%
As of
Polled just now
Buy Yes
47¢
Sell Yes
27¢
$100 on Yes pays
$213 (2.13x)
Trade this on Polymarket
Spread: South Dakota (-10.5)
35%
Polymarket 35%polled, 52s agoBest Yes 51¢ on Polymarket, $100 pays $196 (1.96x)
Polymarket
Contract
Spread: South Dakota (-10.5)
Last price
35%
As of
Polled just now
Buy Yes
51¢
Sell Yes
19¢
$100 on Yes pays
$196 (1.96x)
Trade this on Polymarket
Spread: North Dakota (-5.5)
33%
Polymarket 33%polled, 52s agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
Spread: North Dakota (-5.5)
Last price
33%
As of
Polled just now
Buy Yes
47¢
Sell Yes
19¢
$100 on Yes pays
$213 (2.13x)
Trade this on Polymarket
Spread: South Dakota (-7.5)
32%
Polymarket 32%polled, 52s agoBest Yes 34¢ on Polymarket, $100 pays $294 (2.94x)
Polymarket
Contract
Spread: South Dakota (-7.5)
Last price
32%
As of
Polled just now
Buy Yes
34¢
Sell Yes
30¢
$100 on Yes pays
$294 (2.94x)
Trade this on Polymarket
Spread: North Dakota (-7.5)
31%
Polymarket 31%polled, 52s agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
Spread: North Dakota (-7.5)
Last price
31%
As of
Polled just now
Buy Yes
47¢
Sell Yes
15¢
$100 on Yes pays
$213 (2.13x)
Trade this on Polymarket
Spread: North Dakota (-10.5)
27%
Polymarket 27%polled, 52s agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
Spread: North Dakota (-10.5)
Last price
27%
As of
Polled just now
Buy Yes
47¢
Sell Yes
7¢
$100 on Yes pays
$213 (2.13x)
Trade this on Polymarket
Spread: South Dakota (-14.5)
26.5%
Polymarket 26.5%polled, 52s agoBest Yes 45¢ on Polymarket, $100 pays $222 (2.22x)
Polymarket
Contract
Spread: South Dakota (-14.5)
Last price
26.5%
As of
Polled just now
Buy Yes
45¢
Sell Yes
8¢
$100 on Yes pays
$222 (2.22x)
Trade this on Polymarket
Spread: North Dakota (-14.5)
24%
Polymarket 24%polled, 52s agoBest Yes 48¢ on Polymarket, $100 pays $208 (2.08x)
Polymarket
Contract
Spread: North Dakota (-14.5)
Last price
24%
As of
Polled just now
Buy Yes
48¢
Sell Yes
1¢
$100 on Yes pays
$208 (2.08x)
Trade this on Polymarket

No cross-venue arbitrage right now: on every matched outcome, the best bid on one venue is at or below the cheapest ask on the other. Find markets with open spreads

Same bet: both pay the winner of the game

Ties: both venues pay 50/50.

Only differs in an edge case

  • If the game is postponed: Kalshi resolves to a fair price if the game does not start within 48 hours of the scheduled time; Polymarket stays open until the game is played and resolves 50-50 only if it is cancelled with no make-up.
Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: ncaa.com
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: Kalshi using information originating from the NCAA, ESPN
Show full rule comparison
  • If the game is postponed: Kalshi resolves to a fair price if the game does not start within 48 hours of the scheduled time; Polymarket stays open until the game is played and resolves 50-50 only if it is cancelled with no make-up.
  • Ties: both venues pay 50/50.
  • Trading closes Oct 24, 2026, 6:00 PM UTC on Polymarket and Oct 26, 2026, 6:00 PM UTC on Kalshi.

Summarized from each venue’s published rules; the venue’s own rules page is the final word.

How the odds have moved

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

  • O/U 51.5
  • O/U 53.5
  • South Dakota

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.

Polymarket

Open on Polymarket ↗

Top of book

Connecting
Best bid
—
Spread
—
Best ask
—

Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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Kalshi

Kalshi doesn’t list O/U 51.5 for this event.

What your stake buys

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

$
Buy

Loading both order books…

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 "North Dakota vs. South Dakota". O/U 51.5 leads at 59%. Next is O/U 53.5 at 56%. $8K has traded across 22 outcomes on Kalshi and Polymarket. The market is expected to resolve by Oct 24, 2026.

In the upcoming college football game between North Dakota and South Dakota, scheduled for October 24 at 2:00PM ET: This market will resolve to "North Dakota" if North Dakota win the game. This market will resolve to "South Dakota" if South Dakota win the game. Overtime is included if played. If the game ends in a tie, this market will resolve 50-50. 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, this market will resolve 50-50.

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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