Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| St. Louis Cardinals vs. Cincinnati Reds | 100% |
| Spread -1.5 | 100% |
| Spread -2.5 | 100% |
| NRFI | 0% |
| O/U 8.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings Spread -1.5 | 0% |
| 1st 5 Innings O/U 2.5 | 0% |
| 1st 5 Innings O/U 3.5 | 0% |
| 1st 5 Innings O/U 4.5 | 0% |
| 1st 5 Innings O/U 5.5 | 0% |
| 1st 5 Innings O/U 6.5 | 0% |
| Extra Innings | 0% |
| Spread -2.5 | 0% |
| Spread -1.5 | 0% |
| O/U 7.5 | 0% |
| O/U 9.5 | 0% |
| O/U 6.5 | 0% |
| O/U 5.5 | 0% |
| O/U 4.5 | 0% |
| O/U 3.5 | 0% |
| Spread -3.5 | 0% |
Market context
Polymarket is pricing this contract at a 100% YES chance today, so the book is effectively treating a Cardinals win as a done deal rather than a live two-sided market. On Polymarket, that price sits on USDC collateral and settles through Polygon-based conditional tokens, so the only thing that matters is the official result of the scheduled game at Great American Ball Park. The Cardinals and Reds have already met in a doubleheader this week, with St. Louis taking the opener 2-1 and Cincinnati taking the later game 6-5 after a walk-off in extra innings.
That recent split is the main historical frame for reading the current price: the teams have been close enough that one-game variance has mattered, even when the series state has looked settled. ESPN’s live listings still show the Tuesday, 18 August meeting at 6:40pm ET, while MLB and Reds coverage have already dealt with weather disruption earlier in the series, including a postponement that was rolled into a split doubleheader. That makes schedule confirmation the key practical catalyst for traders, because any further rainout, rescheduling, or completion of an unfinished game changes the settlement path more than pre-match form does.
For a Polymarket user, the watchpoints are simple: official MLB game status, any announced start-time change, and whether the fixture is completed in full before the settlement window closes on 25 August. If the game is played and one side wins, the contract resolves to that team; if it is cancelled with no make-up, or ends in a tie, it goes 50-50.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $153K.
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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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.
- 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.
- 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 Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Pronóstico: St. Louis Cardinals vs. Cincinnati Reds on Polymarket Qué Es
Live order book, 0% fees, USDC settlement in seconds.
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