Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
78% | 22% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
78% | 22% | 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 | 78% |
| 1st 5 Innings O/U 3.5 | 71% |
| 1st 5 Innings O/U 4.5 | 57% |
| NRFI | 55% |
| O/U 9.5 | 52% |
| Tampa Bay Rays vs. Kansas City Royals | 51% |
| 1st 5 Innings O/U 5.5 | 46% |
| O/U 10.5 | 44% |
| Spread -1.5 | 41% |
| 1st 5 Innings O/U 6.5 | 34% |
| 1st 5 Innings Spread -1.5 | 34% |
| 1st 5 Innings Spread -1.5 | 31% |
| 1st 5 Innings Spread -2.5 | 22% |
| 1st 5 Innings Spread -2.5 | 22% |
| Extra Innings | 11% |
Market context
Based on real-money crowd forecasting, tampa bay rays vs. kansas city royals stands at 78% likelihood according to current market consensus. In the upcoming MLB game between the Tampa Bay Rays and Kansas City Royals, scheduled for June 30 at 7:40PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays …
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $163K.
Methodology
Sports-specific comparison page for Tampa Bay Rays vs. Kansas City Royals. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- What are live sports odds on Polymarket?
- Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
%22%2F%3E%3Cpath%20d%3D%22M%206%2066%20A%2026%2026%200%200%201%2058%2066%22%20fill%3D%22%23E6B98D%22%20opacity%3D%220.9%22%2F%3E%3Ccircle%20cx%3D%2232%22%20cy%3D%2226%22%20r%3D%2222%22%20fill%3D%22%23F5CBA7%22%2F%3E%3Cpolygon%20points%3D%2216%2C18%2020%2C4%2024%2C18%22%20fill%3D%22%23ef4444%22%2F%3E%3Cpolygon%20points%3D%2224%2C18%2028%2C3%2032%2C18%22%20fill%3D%22%23ef4444%22%2F%3E%3Cpolygon%20points%3D%2232%2C18%2036%2C3%2040%2C18%22%20fill%3D%22%23ef4444%22%2F%3E%3Cpolygon%20points%3D%2240%2C18%2044%2C4%2048%2C18%22%20fill%3D%22%23ef4444%22%2F%3E%3C%2Fsvg%3E){kind=small}
and%22%2F%3E%3Cpath%20d%3D%22M%206%2066%20A%2026%2026%200%200%201%2058%2066%22%20fill%3D%22%23E6B98D%22%20opacity%3D%220.9%22%2F%3E%3Ccircle%20cx%3D%2232%22%20cy%3D%2226%22%20r%3D%2222%22%20fill%3D%22%23F5CBA7%22%2F%3E%3Cpath%20d%3D%22M%2010%2018%20Q%2016%204%2026%2010%20Q%2020%202%2032%206%20Q%2044%202%2038%2010%20Q%2048%204%2054%2018%22%20stroke%3D%22%23ef4444%22%20stroke-width%3D%224%22%20fill%3D%22none%22%20stroke-linecap%3D%22round%22%2F%3E%3C%2Fsvg%3E){kind=small}
Trade Tampa Bay Rays vs. Kansas City Royals on March Madness Predictions
Live order book, 0% fees, USDC settlement in seconds.
Open live market →