Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
69% | 31% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
69% | 31% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Darline Graham Nordone | 69% |
| Person G | 50% |
| Person H | 50% |
| Person I | 50% |
| Person J | 50% |
| Person K | 50% |
| Person L | 50% |
| Person M | 50% |
| Person N | 50% |
| Person O | 50% |
| Person P | 50% |
| Person Q | 50% |
| Person R | 50% |
| Person S | 50% |
| Person T | 50% |
| Person U | 50% |
| Person V | 50% |
| Person W | 50% |
| Person X | 50% |
| Person Y | 50% |
| Person Z | 50% |
| Person AA | 50% |
| Person AB | 50% |
| Person AC | 50% |
| Person AD | 50% |
| Person AE | 50% |
| Person AF | 50% |
| Person AG | 50% |
| Person AH | 50% |
| Person AI | 50% |
| Person AJ | 50% |
| Person AK | 50% |
| Person AL | 50% |
| Person AM | 50% |
| Person AN | 50% |
| Person AO | 50% |
| Other | 50% |
| Ralph Norman | 20% |
| Russell Fry | 9% |
| Mark Lynch | 3% |
| Pamela Evette | 2% |
| Nancy Mace | 0% |
| Joe Wilson | 0% |
| Paul Dans | 0% |
| William Timmons | 0% |
| Sheri Biggs | 0% |
| André Bauer | 0% |
| Alan Wilson | 0% |
| Scott Bessent | 0% |
| Trey Gowdy | 0% |
Market context
South Carolina Republican Senate Special Primary Winner. The market is currently pricing the outcome at 0% YES, meaning crowd-implied probability sits at that level. Settlement is scheduled for 2026-08-11T00:00:00Z. Unlike a sportsbook, the price you see is set by buyers and sellers competing in a live order book — there is no house edge or bookmaker margin to fade.
Political prediction markets price specific outcomes — a candidate winning, a bill passing, an executive action announced — based on real capital from informed traders rather than survey response rates. They tend to update faster than polls when a discrete event lands and slower in the absence of news.
Watch for the underlying catalysts that move this category: each official announcement, dataset release, or scheduled milestone generally produces a step change in the implied probability. Trades execute instantly on Polygon, and shares pay $1 each at resolution if your side wins.
Methodology
This overview of South Carolina Republican Senate Special Primary Winner reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legit stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legit would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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