Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
79% | 21% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
79% | 21% | 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 |
|---|---|
| 1st 5 Innings O/U 2.5 | 79% |
| 1st 5 Innings O/U 3.5 | 67% |
| 1st 5 Innings O/U 4.5 | 55% |
| O/U 8.5 | 54% |
| NRFI | 52% |
| Spread -1.5 | 46% |
| O/U 9.5 | 44% |
| 1st 5 Innings O/U 5.5 | 43% |
| 1st 5 Innings Spread -1.5 | 41% |
| Athletics vs. Kansas City Royals | 37% |
| O/U 10.5 | 37% |
| Spread -2.5 | 36% |
| 1st 5 Innings O/U 6.5 | 33% |
| Spread -1.5 | 27% |
| 1st 5 Innings Spread -1.5 | 23% |
| Spread -2.5 | 19% |
| Extra Innings | 9% |
Market context
The Athletics travel to Kansas City for an evening fixture on 17 August, with Polymarket pricing an Oakland victory at 37 per cent (USDC on Polygon). This implies roughly 63 per cent implied probability for a Royals win, reflecting Kansas City's stronger recent form and home-field advantage. The settlement window extends to late August to accommodate any postponements, with conditional tokens resolving based on official MLB final statistics.
Historical matchups between these franchises show the Royals have maintained a marginal edge in recent seasons, though the Athletics remain competitive in divisional play. Context matters here: Oakland's roster has undergone significant turnover following the franchise's relocation announcement, potentially affecting team cohesion and player motivation. Kansas City, conversely, has stabilised around a core group and shown consistency in August performance over the past three years. The current 37 per cent for Athletics reflects this structural disadvantage rather than a close competitive pairing.
Traders should monitor starting pitcher assignments, which typically release 24–48 hours before game time and materially shift contract valuations. Injury reports for key position players—particularly any last-minute roster moves—can trigger repricing. Weather conditions at Kauffman Stadium may favour either side depending on wind direction and humidity. The Athletics' recent performance against right-handed starters versus the Royals' bullpen effectiveness in late-inning situations represent the tactical variables most likely to shift the current 37 per cent mark meaningfully before first pitch.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $141K.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Qué Es, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Pronóstico: Athletics vs. Kansas City Royals on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
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