Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| 1st 5 Innings Spread -1.5 | 100% |
| 1st 5 Innings Spread -2.5 | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| 1st 5 Innings O/U 4.5 | 100% |
| 1st 5 Innings O/U 5.5 | 100% |
| 1st 5 Innings O/U 6.5 | 100% |
| O/U 8.5 | 100% |
| O/U 7.5 | 100% |
| Spread -1.5 | 89% |
| O/U 9.5 | 86% |
| Spread -2.5 | 61% |
| O/U 10.5 | 51% |
| Extra Innings | 50% |
| Spread -3.5 | 49% |
| O/U 11.5 | 41% |
| Spread -4.5 | 38% |
| Spread -1.5 | 33% |
| Kansas City Royals vs. New York Mets | 5% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -2.5 | 0% |
Market context
The Kansas City Royals face the New York Mets in a decisive third game of their series at Citi Field, scheduled for 1:10pm ET on 9 July 2026. The Royals, currently 38-55 with a poor away record of 17-29, are trailing the series after losing the opener 2-6 and the second game 2-6. The Mets, sitting at 39-54 and 20-25 at home, have dominated both previous contests, including a dramatic five-run eighth-inning rally in the second game that sealed their 6-2 victory [1][2].
Historically, when a team loses the first two games of a three-game series against a stronger opponent at home, their chance of winning the decider drops sharply, often below 10%. The current prediction-market implied probability of 8% for the Royals aligns with this pattern, reflecting their struggles on the road and the Mets’ home dominance. Sportsbook lines show the Royals as +163 underdogs, while analyst consensus heavily favours the Mets, creating minimal divergence between markets and reinforcing the low probability of a Royals upset [1].
Traders should monitor starting pitcher announcements, particularly Steven Cruz for the Royals, whose 5.22 ERA may be a liability against the Mets’ potent lineup [1]. Any late injury news to key Mets hitters or weather delays at Citi Field could shift odds, though no such disruptions are currently reported [5][8]. The series outcome hinges on the Royals’ ability to reverse their away form, a rare feat that has occurred in only 12% of similar MLB scenarios this season [1].
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $751K.
Methodology
This page reviews Kansas City Royals vs. New York Mets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Kansas City Royals vs. New York Mets on Best Prediction Markets UK
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