Will Wilson Win SC GOP Runoff by Less Than Five Points?

A two-to-one polling lead does not match a thirty-eight percent market price. That gap is the tension inside the South Carolina Republican gubernatorial runoff, where Attorney General Alan Wilson heads into the June 23 vote as the clear polling favorite but falls well short of market consensus. The market prices Wilson at less than five points only thirty-eight cents on the dollar, a meaningful discount against what JMC Analytics found as of June 15.

The market question asks whether Wilson’s margin of victory in the runoff against Lieutenant Governor Pamela Evette will land under five percent. Wilson YES contracts trade at $0.38 and NO contracts at $0.62. The runoff resolves June 24, 2026. Total volume has reached $1,443, a thin but active book for a state-level primary contest.

How the Wilson Less-Than-Five Contract Works

A YES payout requires Wilson to win the June 23 runoff by fewer than five percentage points. A payout also triggers if Evette wins outright, regardless of margin. The South Carolina State Election Commission certifies results, and Polymarket resolves based on official certified returns.

• Wilson less than five percent YES: $0.38 implied probability of 38%.
• Wilson less than five percent NO: $0.62 implied probability of 62%.

Evette closes this gap if the Trump endorsement and a strong Horry County performance hold statewide. Wilson wins by a wider margin if his structural lead among registered Republicans holds and Cruz-aligned turnout operations outperform expectations.

Market Signals Pointing Toward a Wider Wilson Margin

Momentum in this contract is flat and bearish. The one-hour change is zero percent, the twenty-four hour reading is unavailable, and the trend score of 22.37 sits well below the neutral threshold. That combination points to selling pressure on YES, meaning traders are pricing a Wilson runaway rather than a nail-biter. The JMC Analytics poll from June 15 showing Wilson ahead by more than two-to-one is the clearest catalyst behind that lean.

Market conviction here is limited. Total volume of $1,443 and liquidity of $1,755 place this firmly in the low-conviction tier. A single large trade could move this market meaningfully before Tuesday’s close.

• Wilson leads Evette by more than two-to-one among likely runoff voters in the June 15 JMC Analytics survey, the single most actionable data point in this market.
• The one-hour price change of zero percent and a trend score of 22.37 combine into a bearish composite, consistent with NO contracts absorbing most new money.
• Trump endorsed Evette before the June 9 primary, yet Wilson still emerged with structural advantages among longtime South Carolina Republicans.
• Ted Cruz endorsed Wilson after the primary, adding national fundraising energy and name recognition to Wilson’s existing institutional lead.
• Total volume of $1,443 in twenty-four hours indicates low liquidity, meaning the current thirty-eight percent price is sensitive to even modest new position-taking.

Lines Analysis: Wilson’s Lead vs. the Market’s Hesitation

Wilson enters the final days of the runoff holding what looks like a commanding structural position. The math doesn’t lie: a two-to-one polling lead, a Cruz endorsement adding outside momentum, and an Evette campaign that has not released internal polling despite promising to do so. Those signals together favor a Wilson win by more than five points, which means NO contracts pay out and the thirty-eight percent YES price looks elevated.

Evette closes this if Trump’s endorsement drives a surge in low-propensity primary voters who skipped the June 9 vote. Runoff electorates in South Carolina are notoriously difficult to model. If Evette’s coalition turns out at higher-than-expected rates, a sub-five margin is plausible. Here’s what the market is missing: the Horry County performance in the primary, where Evette led Wilson by more than two-to-one in raw vote totals, shows she has geographic pockets of deep strength that polls may underweight.

• A JMC Analytics poll update between June 18 and June 22 would be the most direct catalyst for a price move in either direction.
• Evette internal polling release, promised after the June 16 debate, could shift sentiment sharply if her numbers look closer than public surveys suggest.
• Wilson campaign ground game reports and early absentee numbers would signal whether his institutional lead is translating into votes.
• Any additional Trump intervention, social media posts, or surrogate appearances for Evette could tighten the race and push YES prices higher.
• Coastal and Upstate South Carolina turnout differentials will be the real-time signal on election night before certified results arrive.

The data as a whole favors NO. Wilson’s polling lead is wide enough that a sub-five margin requires either a systematic polling error or a dramatic late Evette surge. At $1,443 in total volume, this is a thin book. The NO side reflects the available evidence better than the current YES price does.

LINES VERDICT

Wilson Wins Big

Wilson’s two-to-one polling advantage and the Cruz endorsement point toward a margin well above five points, making the NO contract the better reflection of where this race stands heading into Tuesday.

What the market says: At thirty-eight percent, the market assigns a meaningful but minority chance to Wilson winning by fewer than five points. With the runoff six days away as of June 18 and a thin order book, that probability could swing quickly if Evette’s internal numbers or a late poll shows a tighter race than JMC Analytics detected.