Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
80% | 20% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 80% |
| 1st 5 Innings O/U 3.5 | 69% |
| 1st 5 Innings O/U 4.5 | 57% |
| NRFI | 56% |
| O/U 8.5 | 55% |
| Spread -1.5 | 50% |
| 1st 5 Innings O/U 5.5 | 46% |
| O/U 9.5 | 44% |
| 1st 5 Innings Spread -1.5 | 42% |
| Spread -2.5 | 39% |
| O/U 10.5 | 37% |
| 1st 5 Innings O/U 6.5 | 36% |
| Kansas City Royals vs. Los Angeles Dodgers | 34% |
| Spread -1.5 | 24% |
| 1st 5 Innings Spread -1.5 | 22% |
| Spread -2.5 | 17% |
| Extra Innings | 9% |
Market context
The Kansas City Royals’ visit to the Los Angeles Dodgers is priced by the crowd at **34%** for a Royals win, which is notably shorter than most bookmaker moneylines shown in the market data. Recent sportsbook screens put Los Angeles around **-205 to -276**, which implies roughly **67% to 73%** before vig, while Kansas City has generally sat in the **+182 to +270** range depending on the book and timing.[1][4][11][12][15][17] On Polymarket, that crowd figure is read as a direct event probability; on Kalshi, similar sports contracts are also quoted as probabilities, whereas Betfair and Smarkets are more naturally compared through decimal prices and exchange commission, so the same view can look meaningfully different once fees are applied.
That gap is consistent with the broader shape of this matchup: the Dodgers have been a clear home favourite across multiple markets, while some prediction write-ups still point to enough variance for an underdog cover or a narrower win path.[2][3][8][10][13] Comparable cases this season have shown that baseball prediction markets can lag bookmaker moves when starting pitcher news, lineup confirmation, or late scratch risk shifts the edge late in the day. For market context, the key comparison is not whether the Dodgers are favoured — they are — but whether the crowd’s 34% reflects a genuine disagreement or simply a cheaper entry after exchange fees and different settlement mechanics.
For traders, the main catalysts are the confirmed starting pitchers, batting order announcements, and any postponement or weather-related scheduling change before first pitch; those factors matter because the market stays open if the game is delayed and only goes 50-50 if the fixture is cancelled outright or ends tied under the rules.[2][3][9][12] Recent previews had the matchup scheduled for **12 August at 10:10 pm ET**, with odds moving as pitching information firmed up, including Dodgers prices around **-205 to -209** on some screens and a total clustering around **7.5 to 9 runs** depending on the book.[1][4][11][12] If you are comparing platforms, remember that Polymarket and Kalshi quote the contract directly as probability, while Betfair and Smarkets require translating the matched price into an implied chance and then subtracting commission, which can make a modest edge look smaller after costs.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $125K.
Methodology
We read Kansas City Royals vs. Los Angeles Dodgers from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
Trade Kansas City Royals vs. Los Angeles Dodgers on Robinhood Prediction Markets
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