The Prediction Markets

MD-02 House Election Margin of Victory

Closes
Nov 4, 2026, in 11 days
Traded
$18K
Venues
Polymarket, Kalshi
Prices updated
just now
Share

What the markets expect

Olszewski, 14+ pts 92.2%

Next is Olszewski, 17+ pts at 85%. The venues list this event, but none of their outcomes are matched yet, so prices are shown separately.

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. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Olszewski, 14+ pts
92.2%
Kalshi 92.2%polled, 27s agoBest Yes 95.4¢ on Kalshi, $100 pays $105 (1.05x)
Kalshi
Contract
Olszewski, 14+ pts
Last price
92.2%
As of
Polled just now
Buy Yes
95.4¢
Sell Yes
89¢
$100 on Yes pays
$105 (1.05x)
Trade this on Kalshi
Olszewski, 17+ pts
85%
Kalshi 85%polled, 27s agoBest Yes 96.2¢ on Kalshi, $100 pays $104 (1.04x)
Kalshi
Contract
Olszewski, 17+ pts
Last price
85%
As of
Polled just now
Buy Yes
96.2¢
Sell Yes
85¢
$100 on Yes pays
$104 (1.04x)
Volume
$50
Trade this on Kalshi
Olszewski, 20+ pts
77%
Kalshi 77%polled, 27s agoBest Yes 89¢ on Kalshi, $100 pays $112 (1.12x)
Kalshi
Contract
Olszewski, 20+ pts
Last price
77%
As of
Polled just now
Buy Yes
89¢
Sell Yes
77¢
$100 on Yes pays
$112 (1.12x)
Volume
$50
Trade this on Kalshi
Olszewski, 23+ pts
69%
Kalshi 69%polled, 27s agoBest Yes 79¢ on Kalshi, $100 pays $127 (1.27x)
Kalshi
Contract
Olszewski, 23+ pts
Last price
69%
As of
Polled just now
Buy Yes
79¢
Sell Yes
67¢
$100 on Yes pays
$127 (1.27x)
Volume
$2K
Trade this on Kalshi
Olszewski, 26+ pts
55%
Kalshi 55%polled, 27s agoBest Yes 67¢ on Kalshi, $100 pays $149 (1.49x)
Kalshi
Contract
Olszewski, 26+ pts
Last price
55%
As of
Polled just now
Buy Yes
67¢
Sell Yes
55¢
$100 on Yes pays
$149 (1.49x)
Volume
$2K
Trade this on Kalshi
Olszewski, 29+ pts
45%
Kalshi 45%polled, 27s agoBest Yes 45¢ on Kalshi, $100 pays $222 (2.22x)
Kalshi
Contract
Olszewski, 29+ pts
Last price
45%
As of
Polled just now
Buy Yes
45¢
Sell Yes
42¢
$100 on Yes pays
$222 (2.22x)
Volume
$1K
Trade this on Kalshi
Democrat 25-30%
32.5%
Polymarket 32.5%polled, 27s agoBest Yes 35¢ on Polymarket, $100 pays $286 (2.86x)
Polymarket
Contract
Democrat 25-30%
Last price
32.5%
As of
Polled just now
Buy Yes
35¢
Sell Yes
30¢
$100 on Yes pays
$286 (2.86x)
Volume
$2K
Trade this on Polymarket
Olszewski, 32+ pts
31%
Kalshi 31%polled, 27s agoBest Yes 35¢ on Kalshi, $100 pays $286 (2.86x)
Kalshi
Contract
Olszewski, 32+ pts
Last price
31%
As of
Polled just now
Buy Yes
35¢
Sell Yes
28¢
$100 on Yes pays
$286 (2.86x)
Volume
$1K
Trade this on Kalshi
Democrat 30-35%
26.5%
Polymarket 26.5%polled, 27s agoBest Yes 28¢ on Polymarket, $100 pays $357 (3.57x)
Polymarket
Contract
Democrat 30-35%
Last price
26.5%
As of
Polled just now
Buy Yes
28¢
Sell Yes
25¢
$100 on Yes pays
$357 (3.57x)
Volume
$5K
Trade this on Polymarket
Olszewski, 35+ pts
18%
Kalshi 18%polled, 27s agoBest Yes 29¢ on Kalshi, $100 pays $345 (3.45x)
Kalshi
Contract
Olszewski, 35+ pts
Last price
18%
As of
Polled just now
Buy Yes
29¢
Sell Yes
17¢
$100 on Yes pays
$345 (3.45x)
Volume
$270
Trade this on Kalshi
Show 8 more outcomes
Democrat 35-40%
14%
Polymarket 14%polled, 27s agoBest Yes 16¢ on Polymarket, $100 pays $625 (6.25x)
Polymarket
Contract
Democrat 35-40%
Last price
14%
As of
Polled just now
Buy Yes
16¢
Sell Yes
12¢
$100 on Yes pays
$625 (6.25x)
Volume
$2K
Trade this on Polymarket
Democrat 0-10%
11.5%
Polymarket 11.5%polled, 27s agoBest Yes 22.6¢ on Polymarket, $100 pays $442 (4.42x)
Polymarket
Contract
Democrat 0-10%
Last price
11.5%
As of
Polled just now
Buy Yes
22.6¢
Sell Yes
0.4¢
$100 on Yes pays
$442 (4.42x)
Volume
$320
Trade this on Polymarket
Olszewski, 38+ pts
11.1%
Kalshi 11.1%polled, 27s agoBest Yes 15¢ on Kalshi, $100 pays $667 (6.67x)
Kalshi
Contract
Olszewski, 38+ pts
Last price
11.1%
As of
Polled just now
Buy Yes
15¢
Sell Yes
7.3¢
$100 on Yes pays
$667 (6.67x)
Trade this on Kalshi
Democrat 20-25%
8.3%
Polymarket 8.3%polled, 27s agoBest Yes 9.2¢ on Polymarket, $100 pays $1,087 (10.9x)
Polymarket
Contract
Democrat 20-25%
Last price
8.3%
As of
Polled just now
Buy Yes
9.2¢
Sell Yes
7.3¢
$100 on Yes pays
$1,087 (10.9x)
Volume
$2K
Trade this on Polymarket
Democrat 10-15%
5%
Polymarket 5%polled, 27s agoBest Yes 8.2¢ on Polymarket, $100 pays $1,220 (12.2x)
Polymarket
Contract
Democrat 10-15%
Last price
5%
As of
Polled just now
Buy Yes
8.2¢
Sell Yes
1.8¢
$100 on Yes pays
$1,220 (12.2x)
Volume
$307
Trade this on Polymarket
Democrat 40%+
3%
Polymarket 3%polled, 27s agoBest Yes 5.1¢ on Polymarket, $100 pays $1,961 (19.6x)
Polymarket
Contract
Democrat 40%+
Last price
3%
As of
Polled just now
Buy Yes
5.1¢
Sell Yes
0.9¢
$100 on Yes pays
$1,961 (19.6x)
Volume
$381
Trade this on Polymarket
Democrat 15-20%
2.9%
Polymarket 2.9%polled, 27s agoBest Yes 4.9¢ on Polymarket, $100 pays $2,041 (20.4x)
Polymarket
Contract
Democrat 15-20%
Last price
2.9%
As of
Polled just now
Buy Yes
4.9¢
Sell Yes
0.9¢
$100 on Yes pays
$2,041 (20.4x)
Volume
$242
Trade this on Polymarket
Republican Wins
0.2%
Polymarket 0.2%polled, 27s agoBest Yes 0.2¢ on Polymarket, $100 pays $50,000 (500x)
Polymarket
Contract
Republican Wins
Last price
0.2%
As of
Polled just now
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$303
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: Maryland State Board of Elections

How the odds have moved

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

  • Olszewski, 14+ pts
  • Olszewski, 17+ pts
  • Olszewski, 20+ pts

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

Polymarket doesn’t list Olszewski, 14+ pts for this event.

Top of book

Connecting
Best bid
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Spread
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Best ask
—

Waiting for the first live quote…

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.

$
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 0.04 × price × (1 − price) per share (politics rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "MD-02 House Election Margin of Victory". Olszewski, 14+ pts leads at 92.2%. Next is Olszewski, 17+ pts at 85%. $18K has traded across 18 outcomes on Polymarket and Kalshi. The market is expected to resolve by Nov 4, 2026.

The 2026 MD-02 House election is currently expected to be held on November 3, 2026. This market will resolve according to the margin of victory between the top two candidates in the specified election. The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election. For purposes of this market, candidates nominated by the Democratic & Republican Parties will represent the options for "Democrat" and "Republican," respectively. Independent candidates will not represent options for either party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party. If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket. If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking. This market will resolve based on the official vote count once the count has been made official. If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other". If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official. The primary resolution source for this market will be the official results of the 2026 MD-02 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.

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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