Sutcliffe Holds 65% Ottawa Mayor Odds as Poll Shows Wide Lead

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Ottawa Mayor Polls Show Sutcliffe Ahead as His Odds Reach 65%

Mark Sutcliffe is priced at roughly 65% to win Ottawa's October 26 mayoral election across Kalshi and Polymarket. The clearest public poll also has the incumbent well ahead: 54% among decided voters, compared with 25% for Jeff Leiper. The market and the poll are not measuring the same thing, but both point to Sutcliffe as the candidate to beat.

That distinction matters. A poll reports current vote intention. A prediction-market price estimates the chance of the final outcome. Sutcliffe's 65% implied probability can therefore sit above his 54% decided-voter share without contradiction, especially in a race where more than half of all respondents had not named a preferred candidate.

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Live Ottawa Mayor Election Odds

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Mark Sutcliffe

Consensus YES price across 2 venues

82%average

KalshiBest YES price82¢Polymarket84¢

Jeff Leiper

Consensus YES price across 2 venues

7%average

PolymarketBest YES price8¢Kalshi8.9¢

Alex Lawson

Consensus YES price across 2 venues

5%average

KalshiBest YES price5¢Polymarket7.2¢

Neil Saravanamuttoo

Consensus YES price across 2 venues

1%average

KalshiBest YES price1¢Polymarket2¢

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At publication, the Mark Sutcliffe contracts were quoted around 62% to 69% on Kalshi and 64% to 65% on Polymarket. Averaging the two bid-ask midpoints puts the cross-venue estimate close to 65%. That is a more reliable current read than relying on one venue's latest trade, particularly when a contract has a wider spread.

The rest of the field remains well behind in the market. Jeff Leiper is the nearest challenger, but his cross-venue odds are around the mid-teens. The gap does not guarantee a Sutcliffe win. It says traders currently see the incumbent as more likely to win than the rest of the field combined.

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What the Latest Ottawa Mayor Poll Says

Quorus Consulting surveyed 403 Ottawa residents online from June 16 to June 23. Among all respondents, Sutcliffe received 26%, Leiper 12%, Alex Lawson 6%, and Neil Saravanamuttoo 4%. Another 53% did not state a candidate preference, including people who were unsure, would not vote, or preferred not to answer.

Once the survey is limited to decided voters, Sutcliffe rises to 54%, Leiper to 25%, Lawson to 13%, and Saravanamuttoo to 8%. Sutcliffe therefore holds a 29-point lead over Leiper among the voters who selected a candidate.

The poll was drawn from an opt-in online panel, so Quorus says a conventional margin of error cannot be calculated. That is an important limitation. It is still the most useful public benchmark for comparing the candidates, but it should not be treated as a precise forecast of election day.

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Why Sutcliffe's Win Probability Is Higher Than His Poll Share

Three features help explain the gap between 54% in the decided-voter poll and 65% in the market.

First, a winner market rewards the candidate who finishes first, not the candidate who clears any particular vote-share threshold. A 29-point polling lead can support a strong win probability even when the leader is below 60% of decided voters.

Second, the opposition vote is divided. Leiper is the clear second-place candidate in the Quorus survey, but Lawson and Saravanamuttoo together account for another 21% of decided voters. Unless one challenger consolidates that support, Sutcliffe can win without expanding his own share.

Third, the same survey found a large name-recognition advantage. Half of respondents said they knew enough about Sutcliffe to make a voting decision, compared with 19% for Leiper. That advantage is not permanent, but it gives the incumbent a stronger starting position as lower-information voters begin paying attention.

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The Case Against the 65% Sutcliffe Price

The strongest reason for caution is the size of the unsettled electorate. Only 47% of respondents named a preferred candidate. A campaign event, endorsement, debate, or coordinated anti-incumbent vote could move a large pool of voters that was not yet committed in June.

There is also evidence that Sutcliffe's support is not uniform. Quorus found Sutcliffe and Leiper tied in Ottawa Centre, while Leiper led among respondents under 35. If turnout rises in those groups or if the race becomes a two-candidate contest, the current market gap could narrow quickly.

Finally, the Kalshi quote is wider than the Polymarket quote. A wide bid-ask spread means the displayed midpoint is less certain than a tightly traded price. Readers should watch whether the venues converge and whether Leiper's price begins to rise before treating 65% as a durable consensus.

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What to Watch Before October 26

The next high-value signal is a fresh citywide poll using the official candidate field published by the City of Ottawa. Watch the undecided share, whether Leiper closes the name-recognition gap, and whether voters begin consolidating around a single challenger.

For live prices on every candidate, see the 2026 Ottawa mayoral election odds hub.

The current answer is straightforward: Ottawa mayor polls and prediction markets both favor Mark Sutcliffe. The uncertainty lies not in who leads today, but in how much of the 53% without a stated preference can still be moved before October 26.