Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
75% | 25% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
75% | 25% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | 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 | 75% |
| 1st 5 Innings O/U 3.5 | 62% |
| O/U 7.5 | 55% |
| NRFI | 50% |
| Spread -1.5 | 48% |
| 1st 5 Innings O/U 4.5 | 48% |
| O/U 8.5 | 46% |
| 1st 5 Innings Spread -1.5 | 40% |
| 1st 5 Innings O/U 5.5 | 37% |
| O/U 9.5 | 37% |
| St. Louis Cardinals vs. New York Yankees | 36% |
| Spread -2.5 | 36% |
| 1st 5 Innings O/U 6.5 | 27% |
| Spread -1.5 | 26% |
| 1st 5 Innings Spread -1.5 | 22% |
| Spread -2.5 | 17% |
| Extra Innings | 8% |
Market context
The game in the Bronx has already produced a strong signal for how this matchup should be read: the Cardinals beat the Yankees 13-7 on 3 August, so the market’s 36% yes price is being set against a very recent head-to-head result rather than a clean neutral baseline.[1][18] On season form, the Yankees have had the better overall record and home mark, while the Cardinals have been more ordinary away from St Louis, which helps explain why the crowd is still leaning against the underdog even after that upset.[6][8]
Comparable cases in this series suggest that recent scoring spikes can quickly fade into the background unless they are backed by rotation or bullpen news. ESPN’s preview has the Yankees around 63-49 overall and 26-23 at home, while the Cardinals sit roughly 55-57 and 27-25 away, with New York also carrying a stronger last-10 run of 6-4 versus St Louis’s 3-7.[6] That profile usually keeps the Yankees priced as the more likely winner, but the last meeting shows the Cardinals can still reach the 40% range if their bats warm up and the Yankees’ pitching slips.[1][6]
The main catalyst to watch is the confirmed line-up and starting-pitching announcement before first pitch, because the market is effectively hanging on whether New York can convert its deeper season metrics into a cleaner home edge.[6][10] Recent coverage from AP framed the Cardinals as coming in on a slide, while CBS Sports noted they were four games behind the Phillies in the wild-card race and 5-13 over their last 18, which points to form rather than standings being the bigger driver for trader sentiment.[4][10] If either club rests regulars or changes the starter, that would be more market-relevant than the standings gap alone.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $147K.
Methodology
This page tracks St. Louis Cardinals vs. New York Yankees across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
FAQ
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- Which political events have the biggest volume?
- US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.
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